WI0400093_Complete File - Historical_20100114

Material Safety Data Sheet
Magnesium hydroxide MSDS
Section 1: Chemical Product and Company Identification
Product Name: Magnesium hydroxide Contact Information:
Catalog Codes: SLM2437, SLM3811. SLM1663
CAS#: 1309-42-8
RTECS: OM3570000
TSCA: TSCA 8(b) inventory: Magnesium hydroxide
CI#: Not available.
Synonym:
Chemical Name: Not available.
Chemical Formula: Mg(OH)2
Sciencelab.com, Inc.
14025 Smith Rd.
Houston, Texas 77396
US Sales: 1-800-901-7247
International Sales: 1-281-441-4400
Order Online: ScienceLab.com
CHEMTREC (24HR Emergency Telephone), call:
1-80OA24-9300
International CHEMTREC, call: 1-703-527-3887
For non -emergency assistance, call: 1-281-441-4400
Section 2: Composition and Information on Ingredients
Composition:
Name CAS # % by Weight
Magnesium hydroxide 1309-42-8 100
Toxicological Data on Ingredients: Not applicable.
Section 3: Hazards Identification
Potential Acute Health Effects: Slightly hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of
inhalation.
Potential Chronic Health Effects:
CARCINOGENIC EFFECTS: Not available. MUTAGENIC EFFECTS: Not available. TERATOGENIC EFFECTS: Not available.
DEVELOPMENTAL TOXICITY: Not available. Repeated or prolonged exposure is not known to aggravate medical condition.
I Section 4: First Aid Measures I
Eye Contact: Immediately flush eyes with running water for at least 15 minutes, keeping eyelids open. Cold water may be
used.
Skin Contact:
After contact with skin, wash immediately with plenty of water. Gently and thoroughly wash the contaminated skin with running
water and non-abrasive soap. Be particularly careful to clean folds, crevices, creases and groin. Cover the irritated skin with an
emollient. If irritation persists, seek medical attention.

Serious Skin Contact: Not available.
Inhalation: Allow the victim to rest in a well ventilated area. Seek immediate medical attention.
Serious Inhalation: Not available.
Ingestion:
Do not induce vomiting. Loosen tight clothing such as a collar, tie, belt or waistband. if the victim is not breathing, perform
mouth-to-mouth resuscitation. Seek immediate medical attention.
Serious Ingestion: Not available.
I Section 5: Fire and Explosion Data I
Flammability of the Product: Non -Flammable.
Auto -Ignition Temperature: Not applicable.
Flash Points: Not applicable.
Flammable Limits: Not applicable.
Products of Combustion: Not available.
Fire Hazards in Presence of Various Substances: Not applicable.
Explosion Hazards in Presence of Various Substances:
Risks of explosion of the product in presence of mechanical impact: Not available. Risks of explosion of the product in
presence of static discharge: Not available.
Fire Fighting Media and Instructions: Not applicable.
Special Remarks on Fire Hazards: Not available.
Special Remarks on Explosion Hazards: Not available.
I Section 6: Accidental Release Measures I
Small Spill:
Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by spreading water on
the contaminated surface and dispose of according to local and regional authority requirements.
Large Spill:
Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water on the
contaminated surface and allow to evacuate through the sanitary system.
Section l: Handling and Storage i
Precautions: No specific safety phrase has been found applicable for this product.
Storage:
No specific storage is required. Use shelves or cabinets sturdy enough to bear the weight of the chemicals. Be sure that it is
not necessary to strain to reach materials, and that shelves are not overloaded.
Section 8: Exposure Controls/Personal Protection
Engineering Controls:
Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended
exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants
below the exposure limit,
p. 2

Personal Protection: Safety glasses. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivale,t.
Gloves.
Personal Protection in Case of a Large Spill:
Splash goggles. Full suit. dust respirator. Boots. Gloves. A self contained breathing apparatus should be used to avoid
inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this
product.
Exposure Limits: Not available.
Section 9: Phvsical and Chemical Properties
Physical state and appearance: Solid.
Odor: Not available.
Taste: Not available.
Molecular Weight: 58.32 glmole
Color: Not available.
pH (1% solnlwater): Not available.
Boiling Point: Not available.
Melting Point: Decomposes.
Critical Temperature: Not available.
Specific Gravity: 2.36 (Water = 1)
Vapor Pressure: Not applicable.
Vapor Density: Not available.
Volatility: Not available.
Odor Threshold: Not available.
WaterlOil Dist. Coeff.: Not available.
tonicity (in Water): Not available.
Dispersion Properties: Not available,
Solubility: Very slightly soluble in cold water.
Section 10: Stability and Reactivity Data
Stability: The product is stable.
Instability Temperature: Not available.
Conditions of Instability: Not available.
Incompatibility with various substances: Not available.
Corrosivity: Non -corrosive in presence of glass.
Special Remarks on Reactivity: Not available.
Special Remarks on Corrosivity: Not available.
Polymerization: No.
Section 11: Toxicological Information
P. 3

Routes of Entry: Not available.
Toxicity to Animals:
LD50: Not available. LC50: Not available.
Chronic Effects on Humans: Not available.
Other Toxic Effects on Humans: Slightly hazardous in case of skin contact (irritant), of ingestion, of inhalation.
Special Remarks on Toxicity to Animals: Not available.
Special Remarks on Chronic Effects on Humans: Not available.
Special Remarks on other Toxic Effects on Humans: Not available.
Section 12: Ecolonical Information
Ecotoxicity: Not available.
BOD5 and COO: Not available.
Products of Biodegradation:
Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise.
Toxicity of the Products of Biodegradation: The products of degradation are as toxic as the original product.
Special Remarks on the Products of Biodegradation: Not available.
Section it Disl)osal Considerations I
Waste Disposal:
Section 14: Transport Information
DOT Classification: Not a DOT controlled material (United States).
Identification: Not applicable.
Special Provisions for Transport: Not applicable.
I Section 15: Other Regulatory Information I
Federal and State Regulations: TSCA $(b) inventory: Magnesium hydroxide
Other Regulations: Not available..
Other Classifications:
WHMIS (Canada): Not controlled under WHMIS (Canada).
DSCL (EEC):
This product is not classified according to the EU regulations.
HMIS (U.S.A.):
Health Hazard: f
Fire Hazard: 0
Reactivity: 0
p. 4

Personal Protection: E
National Fire Protection Association (U.S.A.):
Health: 1
Flammability: 0
Reactivity: 0
Specific hazard:
Protective Equipment:
Gloves. Lab coat. Dust respirator. Be sure to use an approvedlcertified respirator or equivalent. Safety glasses.
I Section 16: Other Information I
References: Not available.
Other Special Considerations: Not available
Created: 10/10/2005 08:22 PM
Last updated: 11 /01 /2010 12:00 PM
The information above is believed to be accurate and represents the best information currently available to us. However, we
make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume
no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for
their particular purposes. In no event shall ScienceLab.com be liable for any claims, losses, or damages of any third party or for
lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if ScienceLab. cam
has been advised of the possibility of such damages.
P. 5

Material Safety Data Sheet
Sodium hydroxide MSDS
I Section 1: Chemical Product and Company Identification I
Product Name: Sodium hydroxide
Catalog Codes: SLS3298, SLS1081, SLS2503, SLS3925,
SLS1705
CAS#: 1310-73-2
RTECS: WB4900000
TSCA: TSCA 8(b) inventory: Sodium hydroxide
CI#: Not available.
Synonym: Caustic Soda
Chemical Name: Sodium Hydroxide
Chemical Formula: NaOH
Contact Information:
Sciencelab.com, Inc.
14025 Smith Rd.
Houston, Texas 77396
US Sales: 1-800-901-7247
International Sales: 1-281-441-4400
Order Online: ScienceLab.com
CHEMTREC (24HR Emergency Telephone), call:
1-800-424-9300
International CHEMTREC, call: 1-703-527-3887
For non -emergency assistance, tail: 1-281-441-4400
Section 2: Composition and Information on Ingredients
Composition:
Name CAS # % by Weight
Sodium hydroxide 1310-73-2 100
Toxicological Data on Ingredients: Sodium hydroxide LD50: Not available. LC50: Not available.
I Section 3: Hazards Identification I
Potential Acute Health Effects:
Very hazardous in case of skin contact {corrosive, irritant, permeator), of eye contact (irritant, corrosive), of ingestion,
of inhalation. The amount of tissue damage depends on length of contact. Eye contact can result in corneal damage or
blindness. Skin contact can produce inflammation and blistering. Inhalation of dust will produce irritation to gastro-intestinal or
respiratory tract, characterized by burning, sneezing and coughing. Severe over -exposure can produce lung damage, choking,
unconsciousness or death. Inflammation of the eye is characterized by redness, watering, and itching. Skin inflammation is
characterized by itching, scaling, reddening, or, occasionally, blistering.
Potential Chronic Health Effects:
CARCINOGENIC EFFECTS: Not available. MUTAGENIC EFFECTS: Mutagenic for mammalian somatic cells.
TERATOGENIC. EFFECTS: Not available. DEVELOPMENTAL TOXICITY: Not available. The substance may be toxic to
mucous membranes, upper respiratory tract, skin, eyes. Repeated or prolonged exposure to the substance can produce target
organs damage. Repeated exposure of the eyes to a low level of dust can produce eye irritation. Repeated skin exposure can
produce local skin destruction, or dermatitis. Repeated inhalation of dust can produce varying degree of respiratory irritation or
lung damage.
P. 1

i Section 4: First Aid Measures I
Eye Contact:
Check for and remove any contact lenses. In case of contact, immediately bush eyes with plenty of water for at least 15
minutes. Cold water may be used. Get medical attention immediately.
Skin Contact:
In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing
and shoes. Cover the irritated skin with an emollient. Gold water may be used.Wash clothing before reuse. Thoroughly clean
shoes before reuse. Get medical attention immediately.
Serious Skin Contact:
Wash with a disinfectant soap and cover the contaminated skin with an anti -bacterial cream. Seek medical attention.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical
attention immediately.
Serious Inhalation:
Evacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or waistband. If
breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth resuscitation. WARNING: It may
be hazardous to the person providing aid to give mouth-to-mouth resuscitation when the inhaled material is toxic, infectious or
corrosive. Seek immediate medical attention.
Ingestion:
Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious
person. If large quantities of this material are swaflowed, call a physician immediately. Loosen tight clothing such as a collar,
tie, belt or waistband.
Serious Ingestion: Not available.
I Section 5: Fire and Explosion Data
Flammability of the Product: Non-flammable.
Auto -Ignition Temperature: Not applicable.
Flash Points: Not applicable.
Flammable Limits: Not applicable,
Products of Combustion: Not available.
Fire Hazards in Presence of Various Substances: metals
Explosion Hazards in Presence of Various Substances:
Risks of explosion of the product in presence of mechanical impact: Not available. Risks of explosion of the product in
presence of static discharge: Not available. Slightly explosive in presence of heat,
Fire Fighting Media and Instructions: Not available
Special Remarks on Fire Hazards:
sodium hydroxide + zinc metal dust causes ignition of the latter. Under proper conditions of temperature, pressure and state
of division, it can ignite or react violently with acetaldehyde, ally alcohol, allyl chloride, benzene-1,4-diol, chlorine trifluoride,
1,2 dichlorethylene, nitroethane, nitromethane, nitroparafFins, nitropropane, cinnamaldehyde, 2,2-dichloro-3,3-dimethyibutane.
Sodium hydroxide in contact with water may generate enough heat to ignite adjacent combustible materials. Phosphorous
boiled with NaOH yields mixed phosphines which may ignite spontanously in air. sodium hydroxide and cinnamaldehyde +
heat may cause ignition. Reaction with certain metals releases flammable and explosive hydrogen gas.
Special Remarks on Explosion Hazards:
Sodium hydroxide reacts to form explosive products with ammonia + silver nitrate. Benzene extract of allyl benzenesulfonate
prepared from allyl alcohol, and benzene sulfonyl chloride in presence of aquesous sodium hydroxide, under vacuum
distillation, residue darkened and exploded. Sodium Hydroxde + impure tetrahydrafuren, which can contain peroxides, can
p. 2

cause serious explosions. Dry mixtures of sodium hydroxide and sodium tetra hydrobarate liberate hydrogen explosively at
230-270 deg, C. Sodium Hydroxide reacts with sodium salt of trichloropnenoi + methyl alcohol + trichlorobenzene + heat to
cause an explosion.
I Section 6: Accidental Release Measures I
Small Spill:
Use appropriate tools to put the spilled solid in a convenient waste disposal container. if necessary: Neutralize the residue with
a dilute solution of acetic acid.
Large Spill:
Corrosive solid. Stop leak if without risk. Do not get water inside container. D❑ not touch spilled material. Use water spray
to reduce vapors. Prevent entry into sewers, basements or confined areas; dike if needed. Call for assistance on disposal.
Neutralize the residue with a dilute solution of acetic acid. Be careful that the product is not present at a concentration level
above TLV. Check TLV on the MSDS and with local authorities.
I Section 7: Handling and Storage
Precautions:
Keep container dry. Do not breathe dust. Never add water to this product. In case of insufficient ventilation, wear suitable
respiratory equipment. If you feel unwell, seek medical attention and show the label when possible. Avoid contact with skin
and eyes. Keep away from incompatibles such as oxidizing agents, reducing agents, metals, acids, alkalis, moisture.
Storage: Keep container tightly closed. steep container in a cool, well -ventilated area. Hygroscopic. Deliquescent.
I Section 8: Exposure Controls/Personal Protection
Engineering Controls:
Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended
exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants
below the exposure limit.
Personal Protection:
Splash goggles. Synthetic apron. Vapor and dust respirator. Be sure to use an approvedlcertified respirator or equivalent.
Gloves.
Personal Protection in Case of a Large Spill:
Splash goggles. Full suit. Vapor and dust respirator. Boots. Gloves. A self contained breathing apparatus should be used to
avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling
this product.
Exposure Limits:
STEL: 2 (mglrn3) from ACGIH (TLV) [United States] TWA: 2 C E I L : 2 (mglm3) from ❑SHA (PEL) [United States] CELL: 2 (mg/
m3) from NIOSHConsuit local authorities for acceptable exposure limits.
Section 9: Physical and Chemical Properties
Physical state and appearance: Solid. (Deliquescent solid.)
Odor: Odorless.
Taste: Not available.
Molecular Weight: eta glmole
Color: White.
p. 3

PH 0% soln1water): 13.5 [Basic.]
Boiling Point: 1388'C (2530,4°F)
Melting Point: 323°C (613.4'F)
Critical Temperature: Not available.
Specific Gravity: 2.13 (Water = 1)
Vapor Pressure: Not applicable.
Vapor density: Not available.
Volatility: Not available.
Odor Threshold: Not available.
Water/Oil Dist. Coeff.: Not available,
lonicity (in Water): Not available.
Dispersion Properties: See solubility in water,
Solubility: Easily soluble in cold water.
Section 1 U: Stability and Reactivity Data
Stability: The product is stable.
Instability Temperature: Not available,
Conditions of Instability: Incompatible materials, moisture, moist air
Incompatibility with various substances:
Highly reactive with metals. Reactive with oxidizing agents, reducing agents, acids, alkalis, moisture.
Corrosivity: Not available.
Special Remarks on Reactivity:
Hygroscopic. Much heat is evolved when solid material is dissolved in water. Therefore cold water and caution must be used
for this process. Sodium hydroxide solution and octanol + diborane during a work -up of a reaction mixture of oxime and
diborane in tetrahyrofuran is very exothermic, a mild explosion being noted on one occassion. Reactive with water, acids
(mineral, non -oxidizing, e,g. hydrochloric, hydrofluoric acid, muriatic acid, phosphoric), acids (mineral, oxidizing e.g, chromic
acid, hypochlorous acid, nitric acid, sulfuric acid), acids (organic e.g. acetic acid, benzoic acid, formic acid, methanoic acid,
oxalic acid), aldehydes (e.g. acetaldehyde, acrolein, chloral hydrate, foraldehyde), carbamates (e.g. carbanolate, carbofuran),
esters (e.g. butyl acetate, ethyl acetate, propyl formate), halogenated organics (dibromoethane, hexachlorobenzene, methyl
chloride, trichloroethylene), isocyanates (e.g. methyl isocyanate), ketones (acetone, acetophenone, MEK, MIBK), acid
chlorides, strong bases, strong oxidizing agents, strong reducing agents, flammable liquids, powdered metals and metals (Le
aluminum, tin, zinc, hafnium, raney nickel), metals (alkali and alkaline e.g. cesium, potassium, sodium), metal compounds
(toxic e.g. berylium, lead acetate, nickel carbony#, tetraethyl lead), mitrides (e.g. potassium nitride, sodium nitride), nitriles
(e.g. acetonitrile, methyl cyanide), nitro compounds (organic e.g, nitrobenzene, nitromethane), acetic anhydride, chlorohydrin,
chlorosulfonic acid, ethylene cyanohydrin, glyoxal, hydrosulfuric acid, oleum, propiolactone, acylonitrile, phorosous pentoxide,
chloroethanol, chloroform -methanol, tetrahydroborate, cyanogen azide, 1,2,4,5 tetrachlorobenzene, cinnamaldehyde. Reacts
with formaldehyde hydroxide to yield formic acid, and hydrogen.
Special Remarks on Corrosivity: Very caustic to aluminum and other metals in presence of moisture,
Polymerization: Will not occur.
I Section 11: Toxicologlcal Information I
Routes of Entry: Absorbed through skin. dermal contact. Eye contact, Inhalation. Ingestion.
p, 4

Toxicity to Animals:
LD50: Not available, LC50: Not available.
Chronic Effects on Humans:
MUTAGENIC EFFECTS: Mutagenic for mammalian somatic cells. May cause damage to the following organs: mucous
membranes, upper respiratory tract, skin, eyes.
Other Toxic Effects on Humans:
Extremely hazardous in case of inhalation (lung corrosive). Very hazardous in case of skin contact (corrosive, irritant,
permeator), of eye contact (corrosive), of ingestion, .
Special Remarks on Toxicity to Animals:
Lowest Published Lethal Dose: LDL (Rabbit) - Route: Oral; Dose: 500 mg/kg
Special Remarks on Chronic Effects on Humans: May affect genetic material. Investigation as a mutagen (cytogenetic
analysis)
Special Remarks on other Toxic Effects on Humans:
Section 12: Ecological Information
Ecotoxicity: Not available.
BOD5 and COD: Not available.
Products of Biodegradation:
Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise.
Toxicity of the Products of Biodegradation: The product itself and its products of degradation are not toxic.
Special Remarks on the Products of Biodegradation: Not available.
Section 13: Disposal Considerations
Waste Disposal:
Waste must be disposed of in accordance with federal, state and local environmental control regulations.
Section 14: Transport Information f
DOT Classification: Class 8: Corrosive material
Identification:: Sodium hydroxide, solid UNNA: 1823 PG: II
Special Provisions for Transport: Not available.
Section 15: Other Regulatory Information
Federal and State Regulations:
Illinois toxic substances disclosure to employee act: Sodium hydroxide Illinois chemical safety act: Sodium hydroxide New
York release reporting list: Sodium hydroxide Rhode Island RTK hazardous substances: Sodium hydroxide Pennsylvania
RTK: Sodium hydroxide Minnesota: Sodium hydroxide Massachusetts RTK: Sodium hydroxide New Jersey: Sodium hydroxide
Louisiana spill reporting: Sodium hydroxide California Director's List of Hazardous Substances: Sodium hydroxide TSCA 8(b)
inventory: Sodium hydroxide CERCLA: Hazardous substances.: Sodium hydroxide: 1000 lbs. (453.6 kg)
Other Regulations:
OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200). EINECS: This product is on the
European Inventory of Existing Commercial Chemical Substances.
p• 5

Other Classifications:
WHMIS (Canada): CLASS E: Corrosive solid.
DSCL (EEC):
R35- Causes severe burns. S26- In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37139- Wear suitable gloves and eye/face protection. S45- In case of accident or if you feel unwell, seek medical advice
immediately (show the label where possible).
HMIS (U.S.A.):
Health Hazard: 3
Fire Hazard: 0
Reactivity: 2
Personal Protection: j
National Fire Protection Association (U.S.A.):
Health: 3
Flammability: 0
Reactivity: 1
Specific hazard:
Protective Equipment:
Gloves. Synthetic apron. Vapor and dust respirator. Be sure to use an approved/certified respirator or equivalent. Wear
appropriate respirator when ventilation is inadequate. Splash goggles.
Section 16: Omer Information - I
References: Not available.
Other Special Considerations: Not available.
Created: 10/09/2005 06:32 PM
Last Updated: 11/0112010 12:00 PM
The information above is believed to be accurate and represents the best information currently available to us. However, we
make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume
no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for
their particular purposes. In no event shall ScienceLab. com be liable for any claims, losses, or damages of any third party or for
lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if ScienceLab.com
has been advised of the possibility of such damages.

Material Safety Data Sheet
May be used to comply with OSHA 's Hazard
Communication Standard, 29 CFR 1910 1200. Standard
must be consulted for specific requirements.
U.S. Department of Labor
Occupational Safety and Health Administration
(Non -Mandatory Form)
Form Approved
OMB No. 1218-0072
IDENTITY (aS Used on Labe! and LiSt) I /Vote: E31ank spaces are not permrttetl. tr any item is not
ABC � (Anaerobic 6ioChem) applicable or no information is available, the space
most be marked to indicate that.
Man u ac urer s name
REDOX TECH, LLC
L mergency
I a ep hone �N um 0 er 8o6-460-0 30
ress um er, nee . City. State and ZIP Gode
eleprione NurntieF
Tof InIoTmation 919-460-0330
112 Pheasant Wood Court, Morrisville, NC 27560
Date Prapar
MAY 2004
gna ure of
vreparer op tuna
Section II —Hazardous IngretllentsllGentity Information
Hazafd o u s C ompononIs (S peci is Chemical Identity, Common Name[s})
OSHA PEL
ACGIH TLV
Other Limits
Recommended % (optional)
Mixture of
Lactate salts
NA
NA
(0 to 60%)
Lactic acid esters
NA
NA
{0 to 98.5%)
Phosphate buffer
NA
NA
(0 to 0A%)
Ferrous Iron
NA
NA
(0 to 0.1 %)
Fatty Acids
NA
NA
(0 to 5%)
Section III—PSysicalinhemical Characteristics
of ing Point
> 100 C
Sper;fkc Gravity (H_,O = i)
1.04
Vapor Pressure mm s Lactic acid esters
2.7 mbar, 20 C
pH
6.0 to 8.0
vapor Density - Lactic acid esters
3.8
vapors Ion 1191B (Butyl ce a e =
No information
solubility in water Fully soiuble and miscible
Appearance and Oder Light yellow to colorless liquid, slight to mild, characteristic odor
Section TV —Fire and Explosion Hazard Data
Lactic acid esters: 61 aC (150 2719, closed cup) I Lactic acid esters- 11.5% (100 °C) 111.4% (100 °C)
Extingui0ing1916dia water spray, carbon dioxide, dry powder, AFFF, foam
Special ire Fignling Proceaures
Standard procedures for chemical fires
unusual rre and LXplosion Hazards
Thermal decomposition can release irritating gases and vapors
(epro uce locallye;k

Section V—Reactivity Data
presence of water, acids and bases
u�wuiNou�inq "cr" w'—j Strong oxidants
Hazardous Decomposition or uypcoa ucts no known
Routesj OT Lntry rn a a ion. Yes, esters only z5KIrl J Yes ingestion Yes
Healln hazards fAcare and urwonic)Acid esters: Risk of irritation to eyes. Irritating to respiratory system. May degrease
skin.
arcinogenicily None No onograp s. No eg U1 a . No
Signs and symptoms or txposure Red irritated skin. May cause light-headedness when used in poorly ventilated area without
proper vapor mask..
edleal Conditions
Generally Aggravated by Exposure Persons susceptible or sensitive to eye and respiratory irritation
mergency and Frstrace ores Inhalation: Move to fresh air; Skin: Wash skin immediately with water. Eyes: Flush with
water for at least 15 minutes, consult physician; Ingestion: drink water and consult physician.
Section recau Ions tor Safe Handling and Use
Use safety glasses and latex or nitrile gloves. Work in well ventilated area.
as a DISPGsal MethodABC can be disposed as waste water or Iandflied when in compliance with local regulations
Precautions to Be -Taken in Handling an onng fay he F Iammable- ❑o not store near ignition sources or at elevated
temperatures.
Avoid longs storage times, will break down to innocuous products
er Precaullons Wear PPE when handling and keep containers tightly closed when stared.
Section VII—Control Measures
Respiratory Protection (specify yDe) If ventilation inadequate or in confined space, use respirator with filter (DIN 141)
en r ion Loralx aus Acid esters have fow vapor pressure (2.7 bpecial Ensure fumes can not reach ignition source
mbar at 20°C) Standard HVAC conditions typically
adequate
mecna"PE;al tGeneraFloor or stand fans ulner
ro ec a MiNes PVA, nitrite or latex ye ProTection Safety glasses with side shields
VvorvjHygienic FrAclices Do not eat, drink or smoke while handling. Remove/wash contaminated clothing before reuse.

Shag Env+ronrrental &-nfrastructure, Inc.
Princess Scad
Lawrenceville. NJ 08648
609 895.5340
pax: 609,895 1858
aaw Shaw Environmental & Infrastructure, Inc.
January 14, 2010
Thomas Slusser
NCOENR
DWQ APS
UIC Program
1636 Mail Service Center
Raleigh, NC 27699-1636
Re. RTB-1 bacterial culture
Clear Mr. Slusser,
I am sending you this note to confirm that the dechlorinating bacterial cultures BAC-9 marketed by EOS
Remediation, LLC and RTB-1 marketed by RedoxTech, LLC are in fact the same culture. The culture
(originally SDC-9T"4) is distributed under licensing agreements between the two companies and Shaw
Environmental, Inc. Under the terrns of the licensing agreements these companies are allowed to re-
name the culture to fit their marketing strategies. SOC-9, RTB-1, and BAC-9 are indeed the same culture.
The culture is produced in and shipped from our facility.
Please feel free to contact me with any questions (609-895-5356; [e-mail])
Sincerely,
Robert Steffan, Ph.D.
Director. Biotechnology Development and Applications
A Shaw Group Company

Material Safety Data Sheet
Shaw Environmental, Inc.
17 PRINCESS ROAD
LA WRENCEVILLE, N.J. 08648
[phone]
SECTION 1 - MATERIAL IDENTIFICATION AND INFORMATION
Material Name: DHC microbial consortium (SDC-9) MSDS #: ENV 1033
Date Prepared: 10/06/2003
Prepared By: Simon Vainberg
CAS #: NIA (Not Applicable)
Formula #: NIA
Material Description: Non -hazardous, naturally occurring non -altered anaerobic
microbes and enzymes in a water -based medium.
24 HOUR EMERGENCY RESPONSE PHONE NUMBER [phone]
SECTION 2 - INGREDIENTS
Components % OSHA ACGIH OTHER
PEL TLV LIMITS
Non -Hazardous Ingredients 100 NIA NIA NIA
SECTION 3 - PHYSICAL/CHEMICAL CHARACTERISTICS
Boiling Point: 100°C (water)
Specific Gravity (H2O = 1): 0.9 - 1.1
Vapor Pressure a@ 250C: 24 mm Hg (water) Melting Point: 0°C (water)
Vapor Density: NIA Evaporation Rate (H2O = 1): 0.9 - 1.1
Solubility in Water: Soluble Water Reactive: No
pH: 6.0 - 8.0
Appearance and Odor: Murky, yellow water. Musty odor.

MATERIAL SAFETY DATA SHEET FOR DHC consortium (SDC-9)
PAGE 2 OF 4
October 6, 2003
SECTION 4 - FIRE AND EXPLOSION HAZARD DATA
Flash Point: NIA
Flammable Limits: NIA
Extinguishing Media: Foam, carbon dioxide, water
Special Fire Fighting Procedures: None
Unusual Fire and Explosion Hazards: None
SECTION 5 - REACTIVITY DATA
Stability: Stable
Conditions to Avoid: None
Incompatibility (Materials to Avoid): Water -reactive materials
Hazardous Decomposition Byproducts: None
SECTION 6 - HEALTH HAZARD DATA
HEALTH EFFECTS
The effects of exposure to this material have not been determined. Safe handling of
this material on a long-term basis will avoid any possible effect from repetitive acute
exposures. Below are possible health effects based on information from similar
materials. Individuals hyper allergic to enzymes or other related proteins should not
handle.
Ingestion: Ingestion of large quantities may result in abdominal discomfort including
nausea, vomiting, cramps, diarrhea, and fever.
Inhalation: Hypersensitive individuals may experience breathing difficulties after
inhalation of aerosols.
Skin Absorption: NIA

MATERIAL SAFETY DATA SHEET FOR ❑HC consortium (SDC-9)
PAGE 3 OF 4
October 6, 2063
Skin Contact: May cause skin irritation. Hypersensitive individuals may experience
allergic reactions to enzymes.
Eye Contact: May cause eye irritation.
FIRST AID
Ingestion: Get medical attention if allergic symptoms develop (observe for 48 hours).
Never give anything by mouth to an unconscious or convulsing person.
Inhalation: Get medical attention if allergic symptoms develop.
Skin Absorption: NIA
Skin Contact: Wash affected area with soap and water. Get medical attention if
allergic symptoms develop.
Eye Contact: Flush eyes with plenty of water for at least 15 minutes using an eyewash
fountain, if available. Get medical attention if irritation occurs.
NOTE TO PHYSICIANS: All treatments should be based on observed signs and
symptoms of distress in the patient. Consideration should be given to the possibility
that overexposure to materials other than this material may have occurred.
SECTION 7 - SPILL. AND LEAK PROCEDURES
Reportable quantities (in Ibs of EPA Hazardous Substances): NIA
Steps to be taken in case of spill or release: No emergency results from spillage.
However, spills should be cleaned up promptly. All personnel involved in the cleanup
must wear protective clothing and avoid shin contact. Absorb spilled material or
vacuum into a container. After clean-up, disinfect all cleaning materials and storage
containers that come in contact with the spilled liquid.
Waste Disposal Method: No special disposal methods are required. The material may
be sewered, and is compatible with all known biological treatment methods. To reduce
odors and permanently inactivate microorganisms, mix 100 parts (by volume) of ❑HC
consortium with 1 part (by volume) of bleach. Dispose of in accordance with local, state
and federal regulations.

MATERIAL SAFETY DATA SHEET FOR DHC consortium (SDC-9)
PAGE 4OF4
October 6. 2993
SECTION 8 - HANDLING AND STORAGE
Hand Protection- Rubber gloves.
Eye Protection: Safety goggles with side splash shields.
Protective Clothing: Use adequate clothing to prevent skin contact.
Respiratory Protection: Surgical mask.
Ventilation: Provide adequate ventilation to remove odors.
Storage & Handling:
Material may be stored for up to 3 weeks at 2-4'C without aeration.
Other Precautions: An eyewash station in the work area is recommended.
While the information and recommendations set forth herein are believed to be accurate
as of the date hereof, Shaw Environmental, inc. MAKES NO WARRANTY WITH
RESPECT HERETO AND DISCLAIMS ALL LIABILITY FROM RELIANCE THEREON.

DOCUMENTS
ASSOCIATED WITH THE
ORIGINAL PERMIT
APPLICATION
(MARCH 20, 2008)

V. ATTACHMENTS
A. HYDROGEOLOGIC DESCRIPTION
Regional Geologic Setting
The site is located in the Carolina SIate Belt of the Piedmont Physiographic Province. The soil
encountered in this area is the residual product of in place chemical weathering of rock presently
underlying the site. In general, shallow unconfined groundwater movement within the overlying soils
is controlled largely by topographic gradients. Recharge occurs primarily by infiltration along higher
elevations and typically discharges into streams or other surface water bodies. The elevation of the
shallow water table is transient and can vary with seasonal fluctuations in precipitation. Movement in
this water table is generally from higher to lower elevations. The site is located on a flat ridge top
which gently slopes to the south and southeast (Figure 1).
Site Geology
The site is underlain by three distinct lithologic layers. Cross sections were prepared by the former
consultant (BPA Environmental & Engineering, Inc.) The location of these cross sections is
presented on Figure 2. Cross Sections A -A' to E-E' are presented in Figures 3 to G, respectively.
In the vicinity of the plant building, fill material has been estimated to be approximately two to
fourteen feet thick. The fill material consists of gravel, silty sand, and coal cinders.
The fill material layer, where present, is underlain by a shallow layer of saprolite. Saprolite is the in -
place chemical weathering of bedrock beneath the site. This layer ranges from approximately 30 feet
thick in the source area to approximately 40 feet thick at the site boundary. The saprolite is underlain
by partially weathered rock (PWR). PWR beneath the source area has been estimated to be
approximately 35 feet thick and as thick as 140 feet at the site boundary. The PWR is underlain by
bedrock which consists primarily of metamorphosed granodiorite or granite.
Site Hydrogeology
Groundwater of the Piedmont Physiographic Province typically occurs in two hydraulically
interconnected zones: the water table and the bedrock aquifers. Shallow and intermediate monitoring
wells are screened in the water table aquifer at the site. The water table is considered to be
unconfined and is underlain by the bedrock aquifer. For the purposes of this investigation, the
unconfined aquifer is described as the shallow and intermediate water table aquifer. The bedrock
aquifer is considered to be a semi -confined aquifer, less permeable, and hydraulically connected to
the water table aquifer. The deep monitoring wells are screened in the bedrock aquifer. Generally,
the site is considered to be a recharge zone for South Buffalo Creek and its tributaries.
Water level data for the site is presented in Table I and shown on Figures 7 and 8. Groundwater
elevation maps were constructed for the shallow and intermediate water table aquifer. While there is
communication between the fractured bedrock and the overlying water table aquifer, groundwater
flow in these wells is predominantly determined by the fracture density and orientation, porosity of
the material within the fractures, and their connectivity. Consequently, the groundwater flow direction
in fractured bedrock is difficult to measure and/or predict.

A comparison of seasonal groundwater elevation data recorded between May and October 2006
indicated that the mean seasonal change of groundwater elevations in the shallow monitoring wells at
the site was approximately 0.72 feet, approximately 0.69 feet in the intermediate monitoring wells,
and approximately 1.21 feet in the deep bedrock wells.
The hydraulic conductivity, transmissivity, and specific yield of the aquifer was appropriated from a
72-hour pump test completed in the intermediate aquifer at the Former Burlington Industries site,
located at 300 East Meadowview Road which is adjacent to and south of the site.
The 72-hour pump test was conducted by Aquaterra, Inc. as part of the RAP prepared for the site.
The pump test was conducted in a 6-inch extraction well (MW-7e), which is constructed to a depth of
approximately 70 feet bgs. A four -inch stainless steel electrical submersible Grundfos pump was
used to pump the aquifer at approximately 18 to 20 gallons per minute. A shallow monitoring well
and a deep monitoring well were located adjacent to the extraction well. Several existing monitoring
wells were also observed during the test. The data collected from the extraction well was used to
determine the hydraulic conductivity and transmissivity of the intermediate aquifer and the drawdown
data in the surrounding wells was used to calculate the hydraulic conductivites and transmissivity in
the intermediate and bedrock aquifers underlying the site. The hydraulic conductivities were
calculated using the Theis Curve matching techniques (Fetter, 1980). The following average
hydraulic conductivities are:
Intermediate — 295 gpolft2 or 39.44 feet/day
Bedrock — 95 gpdit` or 12.7 feet/day
The following average transmissivities for the intermediate and bedrock are:
Intermediate 5,377 gpolfoot
Bedrock 2292 gpolfoot
According the USGS, the specific yield is the often same but can be less than the effective porosity.
For this reason the effective porosity in the intermediate aquifer is estimated to be approximately
30%. The effective porosity in the bedrock well will be estimated at 0.05%
B. INJECTION FLUID COMPOSITION
HRCID is a proprietary, environmentally safe polylactic ester specially formulated for slow release of
lactic acid upon contact with water in the subsurface environment. Once in place, the HRCS slowly
and continuously releases lactic acid. indigenous anaerobic microbes then metabolize the lactic acid
generated by the HRC9 and produce hydrogen. Naturally occurring microorganisms capable of
reductive dechlorination then use the hydrogen to progressively remove chlorine atoms from
chlorinated hydrocarbon contaminants (i.e. convert tetrachloroethene to trichloroethene to
dichloroethene to vinyl chloride to ethene).
In order to perform the pilot study, an injection permit was obtained from the North Carolina
Department of Environment and Natural Resources (NCDENR)-UIC Injection Branch (Permit No.
WI0400028, NCDENR letter dated September 16, 2002). Public notice was completed in accordance
with ISA NCAC 13C.03060) (NCDENR letter dated April 25, 2002). The Proposed Remedial Action
Plan completion Certification form was completed in accordance with 15A NCAC 13C.0306(b)(5)(C)
(ECS letter dated April 30, 2002).

The HRCS Material Safety Data Sheets are attached. No water supply wells are located within '/
mile from the site. Municipal water at the site will be used for the injection process.
C. INJECTION RATIONALE
Goals;
The goal of injection at the PFG site is to accelerate the biodegradation of chlorinated compounds to
non -toxic end products (ethane and ethene) and to provide a chemical barrier at the site boundary. A
summary of current and historic groundwater analytical results is included in Table 2. A summary of
geochemical parameters is included in Table 3. PCE and TCE concentrations detected in the shallow,
intermediate and bedrock wells during the fourth quarter 2006 are shown on Figures 9 through 14.
Mr. Evan Kane of the NCDENR requested additional information regarding the injection rationale on
February 15, 2005. The response to the additional information request is included in the Appendix
for review.
On June 4, 2007, ECS resubmitted an injection permit for the use of EOS in the source area and for
the use of HRC at the boundary to the Groundwater Protection Unit. In a letter dated June 28, 2007,
the Groundwater Protection Unit requested additional information. Based on the additional requested
information, Mr. Lee Aiken met with Mr. Peter Pozzo of the Groundwater Protection Unit. Mr.
Aiken requested a separation of injection permits which will allow commencement of the HRC
injection prior to the EOS injection. A permit for the EOS injection will be submitted under separate
cover.
In addition Mr. Peter Pozzo of the NCDENR requested a meeting to explain the permit requirements
and what information needed to be presented for permit approval. Ms. Carin Kromm and Mr. Mark
Brown of ECS, Mr. Lee Aiken of PFG, and Mr. Peter Pozzo and Mr. Qu Qi of the NCDENR UIC
Program met on April 17, 2007 to discuss specific issues related to the injection permit.
On September 14, 2007 Mr. Randy Cavallier and Mr. Mark Brown of ECS, and Mr. Peter Pozzo and
Mr. Qu Qi of the NCDENR UIC Program met to discuss the June 28, 2007 letter. The response to the
additional information request is included in the Appendix for review.
Reductive Dechlorination
HRC(& is used to accelerate the in -situ process biodegradation rates of chlorinated solvents via
anaerobic reductive dechlorination processes. The indigenous microorganisms use hydrogen to
progressively remove chlorine atoms from chlorinated compounds. Sequential dechlorination occurs
from PCE to TCE to dichloroethene (DCE) to vinyl chloride (VC), to ethene. VC will be degraded to
ethane as long as the anaerobic/reducing conditions exist.
HRC0 slowly releases lactate when hydrated ("food") to the microorganisms residing in the aquifer
which then produces the hydrogen. The hydrogen is then available to support the anaerobic conditions
which accelerate reductive dechlorination.

D. INJECTION PROCEDURE
Pilot Study Results and Proposed Injection Procedure
A pilot study using HRC9 was completed in November of 2002. HRCO was injected in six injection
wells (intermediate and deep wells) located along the site boundary. Information obtained during the
pilot study, amended the original injection procedure to allow time between injections in the same
well. Injection in the intermediate wells constructed with 30 feet of screen occurred in two 15-foot
intervals using straddle packers. For the first injection event, the first phase of injection in the well is
followed by a second phase injection approximately one to two days after the first phase injection.
Injection of the deep wells constructed with 50 feet of screen occurred in two 25-foot intervals using
straddle packers, An average injection rate in the first phase injection of each well was 3.2 Ibslmin.
The average injection rate in the second phase injection of each well was 1.2 lbslmin. There was
some difficulty with injecting into injection wells IW-3 (intermediate) and IW-6 (deep) and was
explained in the field notes as a "tight" formation. After review of the boring logs, it appears that
intermediate wells are screened in partially weathered rock and the deep wells are screened in the
bedrock. Therefore, the reason for the difficult injection remains unclear. For this project, ECS
expects that the injection rates will remain similar to the injection rates observed in the pilot study.
For the full scale remediation effort, the manufacturer recalculated their dosage and dose rates based
on the movement of the plume over time and increase in concentrations at the border since the pilot
study in 2002. The manufacturer now suggests an injection rate of 50 lbslfeet (as shown in the
current spread sheet attached) in the intermediate wells, However, the manufacturer considers this
rate be too high to inject in one application. Based on the results of the pilot study, HRC® will be
injected at a rate of 20 to 25 lbslft in the intermediate wells and 7 lbslft in the bedrock wells at a
pressure of less than approximately 150 psi at the wellhead. In order to deliver the amount of product
required for treatment of the plume, the HRC@ will be injected in phases approximately 6 months
apart.
In addition, the pilot study injection wells AV-1 and RV-4 are located approximately 30 feet from
injection wells IW-2 and IW-5 and injection wells IW-2 and IW-5 are located approximately 60 feet
from injection wells FW-3 and IW-6. Based on the results of the HRC pilot study, the proposed
injection wells will be drilled approximately 20 feet apart in the vicinity of the highest concentrations
within the plume. The distance will generally increase to approximately 30 feet apart in the lower
concentrations on the outer edges of the plume, The proposed treatment area along the barrier wall is
approximately 500 linear feet long; therefore, ECS recommended that 38 (19 intermediate and 19
deep) additional injection wells (Plat 1). Injection wells (IW-1 through IW-22 and IW-31 through
IW-36) will be installed approximately 20 feet apart in the area with the highest concentrations of
TCE. Injection wells (IW-23 through IW-30 and IW-37 through IW-44) will be installed
approximately 30 feet apart and located at the two ends of the barrier wall where TCE concentrations
are less. The shallow and deep injection well construction details are included in the Appendix. The
associated observation wells will be nested together, one shallow and one deep well in the same
surface casing (Appendix).
Based on the decrease of DO, TCE, PCE and the increase of TOC, the pilot study indicated reducing
conditions immediately following HRC8 injection (see Charts in Appendix). It is ECS' opinion that
the aquifer will quickly convert to reducing conditions when the entire treatment area is in contact
with the injectant, thus beginning the breakdown of chlorinated solvents more effectively.

E. MONITORING PLAN
For monitoring purposes, the observation wells will consist of two nested well pairs with two wells of
different depths in the same boring. A total of 18 additional observation wells (in 9 locations, Plat 1)
will be installed approximately 50 feet apart. One nested observation well will have two wells with
screened intervals of 25 feet to 35 feet bgs and 45 feet to 55 feet bgs, respectively. The second nested
observation well will have two wells with screened intervals of 83 feet to 103 feet bgs and 120 feet to
150 feet bgs, respectively. In order to reduce cost and to not duplicate efforts, existing monitoring
wells will be also be used in the observation network. It should be noted that the existing monitoring
wells used will not be screened at the same depths as the observation wells, but they will provide
concentrations at their specific screened intervals. In the vicinity of monitoring wells MW-22s and
MW-23s, OW-51OW-5a and OW-18 and OW-18a will be installed in the intermediate and deeper
aquifers, respectively. Monitoring, injection and observation well locations are shown on Plat 1.
A Monitoring Plan (Table 4 and Table 5) is attached to this permit application,

TABLE 1
SUINMIARY OF HISTORIC AND CURRENT MONITORING WELL .DAI A,4ND DEPTH TO GROUNDWATER
MEASUREMENTS
Precision Fabrics Group, Inc., Greensboro, North Carolina
ECS Project G-6175A
Well I.D.ft.
Collection
Date
Depth to Groundwater
{ft. TOC}
Screened Interval
{ft. bgs}
Top of Casing
Elevation [ft. TOC)
Groundwater
TOC
Elevation ()
MW-1
10/24/06
30.19
22„37
NM*
Nla
NINV-2
05/09/06
28.00
'0`35
786.43
758.43
10/24/06
27.21
759.22
MW-3:-,...
05/09/06
28.75
? l -36
787.70
758.95
10/24/05
2$.26
759.44
A"X-3i
05/09/06
28.50
22-37
787.40
758.90
10/24/06
28.30
759.10
1VINV-6
10/24/06
31.99
90-100
NM*
Nla
1VINV-�7
10/24/06
31.99
50-60
NM*
Nla
MW-8
10/25/06
29.71
50-60
786.95
757.24
_MW-9
05/09/06
27.00
I7-32
786.07
759.07
10/24/06
26.66
759.41
'4IV4'=7T
10/25/06
28.54
17-32
786.22
757.68
MW-12
10/25/06
29.86
18-33
787.07
757.21
MVV713
05/09/06
27.90
50-60
786.86
758.96
10/24/06
27.65
759.21
MW 1.5d
05/09/06
17.95
88-98
776.90
758.95
759.55
10/24/06
17.35
05/09/06
17.85
15-30
776.90
759.05
10/24/06
17.20
759.70
MW-16
10/25/06
19.04
84-99
773.27
754.23
MW-17i .
05/09/06
24.50
70-80
782.28
757.78
10/24/06
23.07
759.21
ININ '-19s
10/25/06
18.47
15-31
773.44
754.97
MW-20
05/09/06
22.40
25-30
775.52
753.12
10/24/06
21.89
753.63
'MIV-201
05/09/06
21.75
60-65
775.59
753.84
10/24/06
21.69
753.90
1INI'-20d
05/09/06
22.20
83-9$
774.06
751.86
10/24/06
21.95
752.11
M«'-21
05/09/06
19.20
15"30
774.34
755.14
10/25/06
19.98
754.36
MW-21i
05/09/06
22.35
80-100
774,27
751.92
10/25/06
20.39
753.88
MW 21d
05/09/06
20.25
120-150
774.05
753.81
10/25/06
20.39
753.67

TABLE 1
SUMMARY OF HISTORIC AN U t-t'IZREN']' ,LION 1TORLti G %5'ELL DAT. _ . ,.kD DEPTH TO GROUNDWATER
MEASUREMENTS
Precision Fabrics Group, Inc., Greensboro, North Carolina
ECS Project G-6175A
'4'+'ell 1.i1.
Collection
Date
Depth to Groundwater
(ft. TOC)
Screened Interval
{ft. hgs}
Top of Casing
Elevation (ft. TOC)
Groundwater
Elevation (ft. TOC)
A' NY-22d
11/06/02
30.16
95 - 115
781.48
751.32
01/20/03
27.43
754.05
03/31/03
26.37
755.11
06/11/03
24.64
756.84
08/28/03
24.72
756.76
05/09/06
28.65
752.93
10/24/06
28.40
753.08
MW-22f,
11/06/02
29.11
' -4 - 1
781.35
752.24
01/20/03
26.56
754.79
03/31/03
25.44
755.91
06/10/03
24.20
757.15
08/27/03
23.46
757.89
05/09/06
27.70
753.65
10/24/06
27.32
754.03
AIW-22s.
11/06/02
25.64
18.5 - 33.5
778.13
732.49
01/20/03
23.54
754.59
03/31/03
22.24
755.89
06/11/03
20.30
757.83
08/28/03
19.88
758.25
05/09/06
24.55
753.58
10/24/06
24.31
753.82
MW-23s.
11106J02
?9.53
20 - 35
782.35
752.82
01 /20Y03
27.47
754.88
03/31/03
26.29
756.06
06/11/03
24,50
757.85
08/28/03
24.01
758.34
05/09/06
NM
Nla
10/24/06
27,79
754.56
M'VV-24s
10/24/06
27,72
13-40
?52.(,1
754.89
ONx-1
11/06/02
29.69
45 - 65
782.37
752.68
01/20/03
27.35
755.02
03/31/03
26.20
756.17
06/10/03
24.85
757.52
08/27/03
24.02
758.35
05/09/06
28.30
754.07
10/24/06
27.87
754.50

TABLE 1
SLM1MARY OF HISTORIC AND a CRRENT MONITORING WELL DAT.. , Is'D DEPTH TO GROUNDWATER
MEASUREMENTS
Precision Fabrics Group, Inc., Greensboro, North Carolina
ECS Project G-6175A
Well I.11.
Collection
Date
Depth to Groundwater
(ft. TOC)
Screened Interval
(ft. bgs)
Top of Casing
Elevation (ft. TOC)
Groundwater
Elevation (ft. TOC}
0NN'-1 a
1110fi102
29.39
25 _ 31
7R2122
752.83
01/20/03
27.10
755.12
03/31/03
25.94
756.28
06/11/03
24.55
757.67
08/28/03
23.91
758.31
10/24/06
27.51
754.71
11/06/02
27.47
45 - 65
779.81
752.34
01/20/03
25.08
754.73
03/31/03
23.93
755.88
06/10/03
22.16
757.65
08/27/03
21.97
757.84
05/09/06
26.20
753.61
10/24/06
25.91
753.90
OW-2a
11/06/02
27.11
25 - 35
779.57
752.46
01120/03
24.96
754.61
03/31/03
23.79
755.78
06/11/03
23.73
755.84
08/28/03
23,27
756.30
10/24/06
25,81
753.76
OW-3
11/06/02
30.49
120 - 150
782.08
751.59
01/20/03
28.22
753.86
03/31/03
27.05
755.03
06/10/03
28.45
753.63
08/27/03
25.97
756.11
05/09/06
28.65
753.43
10/24/06
28.79
753.29
OW-3a
11/06/02
29.38
83 - 103
781.97
752.59
01 /20Y03
27.47
754.50
03/31/03
26.40
755.57
06/10/03
24.76
757.21
08/27/03
24.51
757.46
1 D'24106
28.24
753.73
OW4
11/06/02
28.11
120 - 150
779.56
751.45
01 /20103
25.95
753.61
03/31/03
24.90
754.66
06/10/03
22.88
756.68
08/27/03
22.95
756.61
05/09/06
27.75
751.81
10/24/06
26.41
753.15

TAB
STDMNL4,RY OF IIISTORIC kN_ _ [ RRE'_VT MI ONITOF
MEASLT.R
Precision Fabrics Group, Inc.
ECS Projei
Well I.D.
Collection
Date
Depth to Groundwater
(ft TOC)
Sc
OW-4a
11/06/02
27.59
01 /20/03
2497
03/31/03
23.73
06/11/03
22.23
08/28/03
22.14
10/24/06
25.85
IW-1
11/06/02
30.95
10/24/06
28.08
IW-2
11/06/02
29.28
10/24/06
27.46
TW-3 „ :_ _
11/06/02
28.19
10/24/06
26.70
JW4.:..
11/06/02
31.76
10/24/06
28.70
IW-5 -
11/06/02
28.95
10/24/06
27.14
IW-6
11/06/02
28.13
10/24/06
26.10
NOTES:
MW = Monitoring Well
OW = Observation Well
TW = Injection Well
TOC = Top of Casing
NM = Not Measured
Nla = Not Applicable
* Monitoring Wells top of cas:
ft. TOC = Feet below the top of casing

TABLE 2
GROUNDWATER ANALYTICAL RESULTS
Precision Fabrics Group, Inc.
Greensboro, North Carolina
ECS Project G-6175A
WELL 1D
Groundwater
Remediation
Goals'
MW-I
MW-2
MW-2
MW-3
Mw-�
du
MW-3
MW-3i
MW-3i
MYY "
(dup.)
MW-6
MW-7
MW-8
MW-8 (dap.)
MW-9
MW-9
MW-1I
MW-12
Screened Interval(ft.bgs)
33-37
20-35
20-35
21-36
21-36
21-36
22-37
22-37
22-37
90-100
50-60
50-60
50-60
17-32
I7-32
17-32
18-33
Date Sampled
t0 WM6
0110P-006
10130✓<tg6
0510912006
511912006
10130C2006
05111912006
10/30/2006
1013012t106
11.0112006
114)1nlf10c,
10125f2006
10/25/2006
05110CD06
IW3012006
10+26Q006
10125120U6
Volatile organic Cum ollml,% ! bl
Benzene
1
13QL
BQL
BQL
BQL
BQL
BQL
3.49
3.62
3.58
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Bromodichioromethane
NE
BQL
1.25
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Sm-Butylbenzene
70
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
5.20
BQL
BQL
BQL
Tert-Butylbertzene
70
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
8.24
0.70
BQL
BQL
Carbon tetrachloride
0.3
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Chloroform
70
BQL
11.0
14.5
1.08
1.35
1.57
1.51
2.20
2.09
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
1,1-Dichloroethane
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
SQL
BQL
BQL
BQL
SQL
1.21
BQL
BQL
BQL
1,2-Dichloroethane
0.38
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
1,1-Dichloroethene
7
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQ1_
BQL
11.2
9.98
1.04
BQL
BQL
BQL
cis-1,2-Dichloroethenc
70
18,000
12.7
BQL
BQL
BQL
BQL
0.590
BQL
BQL
610
1,810
BQL
BQL
63.0
0.64
BQL
BQL
trans-1,2-Dichloroethene
100
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Naphthalene
21
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Tetrachloroethene
0.7
BQL
BQL
BQL
SQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
7.85
4.88
25.7
BQL
BQL
BQL
Toluene
1000
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
1.1,2-Trichloroethanc
5
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
Trichloroethene
2.8
21,700
203
232
1.29
2.22
M6
12.6
21.5
19.0
11,400
1,940
1.03
0.85 J
17.3
SQL
BQL
BQL
Vinyl chloride
0.015
BQL
BQL
BQL
B(7L
13L
13L
BQL
B i.
BQ1
BQI_
BQI.
BQL.
BQI.
1 1.06
BQL
BQI.
B L
Metals { n1)
Dissolved Iron
NIA
BQL
BQL
BQL
BQL
BQL
0.117
BQL
BQL
BQI.
BQL
BQI.
BQL
BQL
0.563
BQL
BQI-
0.566
Ferrous Iron
NIA
BQL
BQL
BQL
SQL
1
BQL
BQL
BQL
BQL
BQL
BQL
BQL
1
BQL
1
BQL
0.89
BQL
BQL
7.66
Manganese
NIA
1.860
0.068
0.094
0.072
0.072
0.533
0.063
0.290
0.309
0AW2
0.105
0.096
0.108
0.990
0.170
U.283
2.970
Innr anics m)
Alkalinity
--
210
24.2
28.3
39.9
36.8
33.3
38.9
36.1
39.4
135.0
132.0
81.8
86.9
286
5.7
34.3
113
Carbon Dioxide (CO2)
--
100
106
62.7
79.2
79.2
65.2
70A
66.9
61.0
91.9
98.6
95.0
102.0
52.8
5.85
58.5
127.0
Chloride
--
52.6
74.5
102
214.0
210.0
195
135.0
131
133.0
38.9
27.8
22.4
22.4
8.86
5.79
33.30
14.10
Nitrate Nitrogen
7.26
13.6
11.4
3.6
3.8
5.55
1.34
1,77
1.88
1.84
2.59
2.08
2.78
0.I60
0.244
0.058
0.114
Sulfate
--
83.0
BQL
77
BQL
BQL
60.6
BQL
66.8
66A0
80.50
61.40
64.80
62.40
BQL
9.65
72.50
72.50
Sulfide
BQL
0.360
0.360
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
0.576
0.768
0.720
BQL
BQL
0.768
Total Organic Carbon TOC)
4.10
1.14
1 A l
1.61
1.83
2.76
1 1.51
1.64
1 6.39
1.18
3A0
BQL
1.67
1.52
2.43
1.30
1.17
or anics - hferabolic Acids (m)
Acetic acid
--
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NS
NA
NA
NA
NA
NA
Butyric acid
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NS
NA
NA
NA
NA
NA
Lactic acid
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NS
NA
NA
NA
NA
NA
Pr ionic acid
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NS
NA
NA
NA
NA
NA
Pyruvic acid
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NS
NA
NA
NA
NA
NA
McMane. EMone. Ethcpw 1p. bl
Ethane
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
NA
NS
NA
NA
NA
NA
NA
Fthene
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
NA
NS
NA
NA
NA
NA
NA
Methane
NA
NA
NA
NA I
NA
NA
NA NA
NA
NA
NA
NS
NA
NA
NA
NA
NA

TABLE 2
GROUNDWATER ANALYTICAL RESULTS
Precision Fabrics Group, Inc.
Greensboro, North Carolina
ECS Project G-6175A
WELL ID
GroundH•ater
Rernediation
Goals
%M - I
MW-11
MW-15s
MW-15s
du
MW-15s
MW-15d
MW-15d
MW-17i
MW-171
MW-17i
d
MW-20
MW-20
MW-20
MW-20i
MW-20i
MW-20d
MW-20d
(dup.)(
Mw-20d
MW-20d
du .
Screened Interval (ft. bgs)
50-60
50-60
15-30
15-30
15-30
88-98
88-98
70-80
70-80
70-80
25-30
25-30
25-30
60-65
60-65
83-98
83-98
83-98
83-98
Daft Sampled
0 r17,-10w,
]i1+31(200(,
S 141 lokir•
05/10/2006
1413112006
05r10:_'0119
] 110100)
0MV2006
1 Pf)1'2006
11.0112006
05108120D6
1"712006
10127r20D6
05n)8P2006
10r2612006
05108/200
051081-006
10/26/2006
I012612006
1 'nlarik Oryamc Cunt orlyuh ( hi
Benzene
1
BQL
BQL
SQL
BQL
BQL
SQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Bromodichloromethanc
NE
BQL
BQL
SQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL_
BQL
SQL
BQL
BQL
BQL
BQL
BQL
SQL
Sec-Bulylbenfene
70
SQL
BOIL
SQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Ten-Butylbenxene
70
SQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
SQL
SQL
BQL
BQL
BQ1
BQL
BQL
BQL
BQL
BQL
BQL
Carbon tetrachloride
0.3
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
1.37
1.14
BQL
BQL
BQL
BQL
BQL
0.91
Chloroform
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
2.64
2.45
BQL
SQL
BQL
BQL
SQL
BQL
l,l-Dichloroethane
70
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL.
BQL
SQL
BQL
1.06
0.98
BQL
SQL
BQL
BQL
BQL
SQL
1,2-Dichloroethanc
0.38
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
1.21
1.10
BQL
BQL
BQL
BQL
BQL
BQL
1,1-Dichloroethene
7
BQL
BQL
BQL
BQL
BQL
BQL
SQL
5.29
10.9
10.5
SQL
5.86
5.16
BQL
BQL
BQL
BQL
BQL
BQL
is-12-Dichloroethenc
70
2,340
520-71
BQL
BQL
BQL
SQL
BQL
5.02
4.38
4.46
SQL
1,220
1,040
1,560
BQL
355
379
367
374
ans- 1,2- Dichloroethene
100
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
SQL
BQA
5.84
5.04
BQL
BQL
BQL
BQL
BQL
BQL
Naphthalene
21
BQL
BQL
SQL
BQL
SQL
SQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Tetrachloroethene
0.7
BQL
BQL
1.33
1.44
SQL
3,920
3,700
37.6
34.0
33.2
BQL
15.0
11.9
BQL
BQL
BQL
BQL
BQL
BQL
Toluene
1000
BQI.
BQL
BQL
BQL
74.5
BQL
BQL
BQL
BQL
BQL
L
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
1,1,2-Trichlornethanc
5
BQL.
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
8QL
0.61
0.54
BQL
BQL
BQL
BQL
BQL
BQL
Trichloroethcrrc
2.8
25,3(X)
8,290
SQL
BQL
BQL
BQL
BQL
3.55
4.93
4.86
I
1.25
2,580
2,260
3,880
1.86
844
896
1,050
1,070
Vinyl chloudc•
0.015
BQL
BQL
$ L
BQL
BQL
B L
BQL
BQI.
BQL
BQL
BQ1.
0.62
o.-55
B L
B 1.
BQI.
13,
BQL
BQI.
Metals 21wo
Dissolved Iron
NIA
BQL
BQL
BQL
BQL
SQL
BQL
BQL
0.215
BQL
BQL
BQL
SQL
BQL
BQL BQI
SQL
BQL
Ferrous Iron
NIA
LBQL
B L
SQL
BQL
SQL
BQL
8QL
BQL
BQL
BQL
BQL
SQL
BQL
20.18J3
BQL
BQL
BQL BQL
BQL
BQL
Man anrsc
N/A
.054
0.035
0.321
364
0.795
8 L
B L
0.099
0.260
0.292
0.067
0.168
U.247
0.030
0.016 B L
0.072
0.046
hlurku l.LL % r ywiI
Alkalinity
185
72.2
58.8
61.9
54.2
103
103
88.2
82.6
83.6
202
191
181
153
210
109
114
117
114
Carbon Dioxide (CO,)
-
141
58.5
44.0
44
4 E8
50.2
57.6
88.0
%.1
98.6
84.5
38.7
33.9
45.8
79.4
88
83.6
68.6
68.6
Chloride
22.4
8.08
12.5
12.5
26.3
29.2
28.9
166
169
170
20.9
66.3
66.3
63.7
25.0
44.9
44.4
44.3
47.4
Nitrate Nitrogen
1.61
0.841
0.961
1.07
1.140
1.56
1.39
7.74
8.90
8.99
0.756
5.05
5.55
4.87
0.237
3.24
3.54
3.37
3.20
Sulfate
BQL
27.50
BQL
BQL
44.40
BQL
46.80
BQL
54.40
53.30
46.40
49,20
BQL
47.60
BQL
BQL
52.90
42.40
Sulfide
BQL
BQL
BQL
0.580
BQL
SQL
BQL
0.360
BQL
BQL
BQL
BQL
BQL
0.360
BQL.
BQL
SQL
BQL
BQL
Total Organic Carbon (TOO
1.62
1.49
1.49
0.670
1.18
0.520
0.84
1.06
1.04
0.76
1.36
1.37
1.63
O1 680
I.83
0.50
BQL
1.09
BQL
Uryanic.% - ifelahulir Aciih 1p rw
Acetic acid
?tiA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Butyric acid
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Lactic acid
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Pr ionic acid
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Pvruvic acid
NA
'tiA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
kkihanr. F.thonc. Ethene 1 hi
]:thane
NA
'tiA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
IEthene
NA
NA
NA
NA
NA
NAt:::
'tiA
NA
NA
tiA
tiA
tiA
NA
NA
!tiA
NA
NA
NA
tiA
,Methane
NA
'tiA
NA
NA
NA
NA
NA
NA
NA
NA
'sA
NA
NA
NA
'tiA
NA
NA
NA
NA

TABLE 2
GROUNDWATER ANALYTICAL RESULTS
Precision Fabrics Group, Inc.
Greensboro, North Carolina
ECS Project G-6175A
WELL ID
Groundwater
Rernediation
Goals"
MW-21
MW-21
MW-21i
MW-2Ii
MW-21d
MW-21d
Ma-21d
MVV-22s
MW22s
MW-22s
MW-22s
MW-22s
MW-22s
MW-22s
MW-22i
MW•22i
MW-22i
MW-221
Screened Inter►aI(ft. bgs)
15-30
15-30
80-100
80-100
120-I50
120-150
120-150
18.5-33.5�
18.5-33.5'
18.5-33.5'
18.5-33.5'
18.5-33.5'
18.5-33.51
18.5-33.51
54-74'
54-74'
54-741
54-74'
Date Sampled
"/09r20n6
IOR512000,
05/1512006
l0/?5f2006
u5MW(ft
11/02/2006
11/02/2006
11/06.r-)002
01/20/2003
03131n003
06/1112003
08/28/2003
051090W
10127,2006
141071?002
01120/2D03
031310003
0611012MI
f ularilc orgrrnrc Cum yound,% (p ph1
Benzene
1
BQL
BQL
BQL
BQL
BQL
BQL-
BQL
BQL
HQL
BQL
BQL
SQL
BQL
SQL
BQL
BQL
BQI.
BQL
Bromodichloromethane
NE
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Sec-Butylbenzene
70
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Teri-Butylbenzenc
70
BQL
_BQL
BQL
BQL
SQL
BQL
SQL
RQL
BQL
SQL
BQI-
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Carbon tetrachloride
0.3
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
4
4
3
3
HQL
BQi.
BQL
31
40
30
Chloroform
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
4
3
3
3
BQL
BQL
BQL
17
15
16
i,l-Dichloroethane
70
BQL
BQL
BQL
BQL
SQL
SQL
SQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL I
BQL
BQL
1,2-Dichloroethanc
0.38
SQL
B L
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
I,1-Dichloroethene
7
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
0.6
BQL
BQL
BQL
2
3
2
cis-1,2-Dichloraethcne
70
BQL
BQL
25.6
23.0
14.7
29.6
28.4
930
400
260
200
210
420
279
400
730
760
710
trans-1,2-Dichloroethene
100
BQL
BQL
BQL
BQL
BQL
BQL
BQL
HQL
2
1
1
2
BQL
BQL
BQL
BQL
BQL
BQL
3
BQL
3
BQL
4
BQL
Naphthalene
21
BQL
BQL
BQL
BQL
B L
B L
BQL
SQL
BQL
BQL
BQL
BQL
Te�trachloroethenc
0.7
BQL
BQL
BQL
0.88
BQL
BQL
BQL
BQL
10
1 tl
8
8
BQL
BQL
230
200
180
170
Toluene
1000
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
1,1,2-Trichioroethane
5
BQL
BQL
BQL
BQI.
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Trichloroethene
2.8
BQL
BQL
102
102
32-9
138
141
3,400
1,600
1,2M
990
940
1,580
1,280
3,700
5,900
6,400
5,000
VinVI chloride
0.015
BQL
BQI
B L
BQl
BQI
BQl-
BQL
BQL
BQL
BQL.
BQI
SQL.
BQI
BQI
13Q1
2
B 1.
BQI.
Dissnl►ed iron
N/A
BQL
BQI.
BQ1.
13Q1
0.507
0.107
BQL
BQL
BQL
BQI
BQl
BQI.
BQI.
BQL
BQI.
BQL
BQI BQL
Ferrous Iron
NIA
BQL
SQL
BQL.
BQl
0.261
BQI.
BQL.
BQL
BQI..
BQ1.
BQL
BQL
BQI.
BQL
BQl-
BQL
BQL. BQL
Manganese
N: A
0.014
0.052
BQL.
BQl
0.212
2.200
1 .A 10
a o127
B l
BQI.
1301.
0.023c]
0.13s
U.t16H
BQL
0 0764
0.(K)52 [1.1"47
norgarric:c ( m)
Alkalinity
--
57.8
65.6
73.5
73.7
162
156
116
161
328
317
465
462
102
124
87.1
104
35.0
180
122
41.0
240
127
60.0
250
131
88.0
240
Carbon Dioxide (CO,]
--
79.2
108.0
39.6
58.1
13.2
8.4
25.1
32
53
66
57
119
35.2
Chloride
26.5
22.4
22.9
22.9
27.5
24.7
33.0
100
58
46
40
42
26.1
32.6
Nitrate Nitrogen
3.53
6.16
3.56
4.53
0.308
I.71
4.03
2.9
2
1.9
1,6
1.6
0.988
1.98
7.00
6.10
6.40
6.10
Sulfate
BQL
34.50
BQL
34.00
BQL
134.00
76.50
BQL
BQL
BQL
SQL
HQL
BQL
34.20
BQL
BQL
BQL
BQL
Sulfide
BQL
0.384
0.528
0.768
BQL
7.92
BQL
BQL
BQL
0.01
BQL
BQL
0.880
BQL
BQL
BQL
SQL
BQL
Total Or anic Carbon (TOC)
BQL
0.65
BQL
3.69
13.6
5.54
5.58
4.9
14.4
6.5
7.5
18.6
3.26
6.78
0.9
10.3
11.2
9.7
C)r ❑nics - Metabolic Acids Ip nr)
Acetic acid
NA
NA
NA
NA
NA
NA
NA
BQL
BQI-
HQL
BQL
BQL
NA
NA
NA
NA
N.A
NA
Butyric acid
NA
NA
NA
NA
NA
NA
NA
BQL
BQL
BQL
BQL
BQL
NA
NA
NA
NA
'ti.A
NA
Lactic acid
-
NA
NA
NA
NA
NA
NA
NA
BQL
BQL
BQL
BQL
BQL
NA
NA
NA
NA
NA
NA
Pr ionic acid
--
NA
NA
NA
NA
NA
NA
NA
BQL
BQL
BQL
BQL
BQL
NA
NA
NA
NA
NA
NA
Pyru►ic acid
-
NA
NA
NA
NA
'tiA
NA
NA
H L
B L
BQL
I BQL
BQL
NA
NA
NA
NA
?tiA
NA
ifcrhunr. Elhune. E1he'nv (h)
Ethane
--
NA
NA
NA
NA
NA
NA
NA
BQL
BQL
BQL
BQL
BQL
NA
NA
NA
NA
NA
N.
Ethenc
NA
NA
NA
NA
NA
NA
NA
BQL
BQL
BQL
BQL
BQL
NA
NA
NA
NA
NA
NA
Methane
NA
NA
NA
NA
NA
NA
NA
B L
H L
B L
B L
B L
NA
NA
NA
NA
NA
NA

TABLE
GROUNDWATER ANALYTICAL RESULTS
Precision; Fabrics Group, Inc.
Greensboro, North Carolina
ECS Project G-6175A
WELL 1D
MW-22i
MW-22i
I MW 22i
NJ%r_22i
MW•22d
MW-22d
MW-22d
MW-22d
MW-22d
MW-22d
MW-22d
MW-22d
MW-23s
MW-23s
MW-23s
MW-23s
MW-23s
MW-23s
MW-23s
Groundwater
Remediation
Goals
du
d
5crevned Inter►a1(ft.bgs)
54-74'
54.74'
54-741
54-74'
95-115'
95.1151
95-115'
95-115'
95-1151
95-1151
95-115'
95-1152
20-351
20-351
20-351
2D-351
20-35'
20-351
20-35'
Date Sampled
08/27R00z
n5 h Iflof,
1.
51{6f2pG
i0131.+2[>[in
�
11ro71'_t1o,
n n
1rl 2 003
z
GM1.'al '+H>>
>
6W11 _Ot�3
> ;
Dt,�ill_Oo.
z
11812fir'IX�_
t15116120Q6
10130f20[16
11h+7l1g02
�1l24r?(1[13
03 3112003
z
06.1FI_'txl.
08082003
051I6120t]6
10lI712000
1'olaeilc Oreanic Compounds unds ( b)
Benzene
1
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Bromodichloromethane
NE
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Sec-Butylbenzmc
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
L
BQL
B L
BQL
BQL
BQL
BQL
BQL
Tert-Butylbenzene
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Carbon tetrachloride
0.3
26
BQL
BQL
SQL
BQL
63
43
43
44
36
BQL
BQL
BQL
BQL
SQL
BQL
SQL
BQL
BQL
Chloroform
70
14
BQL
BQL
BQL
BQL
27
25
27
28
27
SQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
1. 1 -Dichlorocthane
70
BQL
BQL
SQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
SQL
SQL
BQL
BQL
BQL
1,2-Dichloroethane
0.38
BQL
BQL
BQL
BQL
BQL
BQL
BQL
4
4
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
1.1-Dichloroethene
7
BQL
BQL
BQ1-
BQL
BQL
BQL
ti
7
7
7
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
cis-1,2-Dichlorombene
70
600
1070
1020
590
2,300
2,300
2,700
2,800
2,700
2,500
4,030
6,180
BQL
BQL
SQL
SQL
BQL
2.88
0.93
trans-l.2-Dichlvroethene
100
5
BQL
BQL
BQL
BQL
12
23
24
27
25
SQL
BQL
BQL
BQL
SQL
BQL
BQL
SQL
BQL
Naphthalene
21
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
SQL
Tetrachloroethene
0.7
160
BQL
BQL
BQL
BQL
96
87
76
73
67
BQL
BQL
BQL
0.6
BQL
BQL
BQL
BQL
BQL
Toluene
1000
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
1.1,2-Trichlorodhanc
5
SQL
BOL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
i richloroethene
? .S
-
4,800
5,930
5,6M
4,800
13,000
12,ODO
12,000
11,000
11,000
11.000
8,640
12,300
1.0
BQL
BQL
BQL
BQL
13.5
13.4
Vtn%-I chloride
0-015
BQ1_
BQl_
BQL
BQL
BQL
BQL
BQL
BQL
BQL
RQ1.
BQL
BQ1
BQL
BQI.
B 1.
[301 1
BQL
BQ1.
qQl.
1levals (pm)
Dissolved Iron
NIA
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
0.178
BQL
SQL
BQI.
BQ1
SQL
BQl.
1301
Ferrous Iran
NIA
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
0.449
BQL
BQL
BQL.
BQl_
BQL
HQL
BQI.
Maneranesc
NIA
0.0196
0.084
0.060
0.021
0.0424
0.465
0.625
1 0.473
0.421
0.611
1.15
0.973
B L
BQ1
0.0275
1
1391
0.39U
[1.3(17
Inorganics ( m)
Alkalinity
119
130
139
127
128
118
133
154
142
166
194
169
298
301
265
169
305
441
390
Carbon Dioxide(CD_)
57.0
105.0
88.0
91.9
40
39.6
70.4
40
31
13
96.8
117.0
40
60
48
70
101
123
135
Chloride
220
169
162
162.0
440
420
410
360
360
320
230
274.0
20
23
25
25
21
BQL
2.63
Nitrate N i trogm
--
6.50
3.88
3.60
3.58
6
4.1
3.8
3.1
3
2.9
2.0
1.66
0.27
0.41
0.46
0.5
0.38
0.098
0.121
Sulfate
-
BQL
BQL
SQL
75.20
BQL
BQL
BQL
BQL
BQL
BQL
BQL
11.10
BQL
BQL
BQL
BQL
BQL
BQL
34.00
Sulfide
--
BQL
BQL
BQL
BQL
0A I
I BQL IBQL
o.05-1
0.04
0.05
0.380
SQL
BQL
BQL
BQL
BQL
BQL
0.360Total
Or,anic Carbon (TOC)
6.4
0.680
0.820
0.83
1.1
8
4.9
3.8
3.9
5-2
2.49
1.38
4319.1
7
L52L
12.4
L45
2.57
U '-:amc's - .Mclabo/4 .acid!
Acetic acid
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
tiA
NA
NA
NA
NA
NA
NA
!tiA
Bu c acid
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
'tiA
NA
NA
NA
NA
NA
Lactic acid
-
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Pr ionic acid
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Pvruvic acid
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
ethane. Ethane, £Mery (pph)
Ethane
NA
NA
NA
NA
NA
NA NA
NA
NA
'tiA
NA
NA
NA
NA
NA
NA
NA
NA
Lthene
tiA
N.A
NA
NA
NA
NA
N.A 'tiA
NA
NA
ti;1
NA
NA
NA
NA
NA!tiA
NA
NA
'dethanc
t'A
NA
NA
'.tiA
?tiA
NA tiA
NA
'tiA
NA
NA
N.A
tiA
MA
tiA
NA
NA
NA

TABLE 2
GROUNDWATER ANALYTICAL RESULTS
Precision Fabrics Group, Inc.
Greensboro, North Carolina
ECS Project G-6175A
WELL ID
Groundwater
Remediation
Goals-
MW-24s
MW-24s
(duin.)
OW-1
ow-1
OW-1
OW-1
OW-1
ow -I
OW-1
ow -la
ow -la
OW -la
OW -la
ow -la
ow -la
OW -Ea
OW-2
OW-2
OW-2
OW-2
45-65
06110/2003
Screened Interval (ft. bgs)
17-32
17-32
45-65
45-65
45-65
45-65
45-65
45.65
45-65
25-35
25-35
25-35
25-35
25-35
25-35
25-35
45-65
45-65
45-65
Date Sampled
10/31coon
10!31(2006
1110?[2M2
0112012003
03/31/2003
ftllof)M3
118r270003
05t1e,/2006
1013t112D06
111071200:
OIf-M-12 H13
03.131!2M3
06/11/2003
M2912003
05/16/2006
1012712f1or
I MO-002
01/2012003
03131/2003
I ularile Urewjic C•urry undc ! hJ
Benzene
l
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
Bromodichloromethanc
NE
BQL
SQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Sec-Butylbenzwe
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Tcn-Butylbenzene
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQl-
SQL
BQL
BQL
Carbon tetrachloride
0.3
BQL
BQL
BQL
I
2
0.9
0.9
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
15
12
BQL
Chloroform
70
BQL
SQL
BQL
3
3
2
2
BQL
0.68
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
32
22
25
1,1-17ichloroethane
70
BQL
BQL
BQL
BOL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
B L
BQL
BQL
BQL
BQL
l,2-Dichloroethane
0.38
SQL
SQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
3
BQL
BQL
1,1-Dichloroethene
7
SQL
BQL
BQL
L
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
7
7
$
cis-1,2-Dichloroethene
70
BQL
BQL
45
BQL
BQL
BQL
BQL
BQL
9.56
BQL
BQL
BQL
BQL
SQL
1.84
BQL
1,700
2,000
2,300
2.100
trans-1,2-Dichloroethene
100
SQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
10
9
j5
Naphthalene
21
BQL
BQL
BQL
BQI.
2
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQI-
BOL
Tetrachloroethene
0.7
BQL
BQL
140
150
150
99
92
110
5.03
14
3
2
0.9
0.6
BQL
BQL
BQL
10U
94
95
Toluene
1000
BQL
BQL
Bpi
BQL
BQL
BQL
BQL
BQL
SQL.
BQL
BQL
BQL
BQL
BQL
0.550
BQL
BQL
SQL
BQL
BQL.
-Trichloroethane
5
BQL
BQL
BQI.
BQI.
6
BQL
BQL
BQI.
BQI-
B L
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Sloroethene
[T,,h
2.8
BQL
BQL
790
6
5
4
4
17.7
43.5
BQL
BQL
BQL
0,5
SQL
0.9
8.53
7a0[i
9,800
12,000
9,5(10
inv1 chloride
[i.fll5
SQL
BQL
B(71_
SQi
}3Q!
BQl
BQI-
BQ1.
BQ[.
BQL
BQI.
BQL.
BQI.
BQI.
ft[1[.
SQI.
B 1-
3
BQI.
SQL.
Alerals ( no
Dissolved iron
N.'A
BQL
BQL
BQL
BQL
BQl.
BQL
BQI.
BQI
BQ1
BQ1-
BQL
BQL
BQL
BQ1.
BQL.
BQI.
BQL
fl-5x{
'-4 %
''-2
Ferrous Iron
N.'A
13QL
BQL
BQL
BQL
BQL
BQL
BQ1
BQI
BQl-
BQI.
BQL
BQL
BQL
BQL
E1Q1.
BQL.
BQL
BQL
4.48
2.48
Manganc�sc
N;A
0-249
0.130
i1.654
0.373
0.286
0.220
0.171
(1-111
f1-116
o.8?�
1.24
1.43
1.(x,
1)
2.h5
I-?40
0.0562
1.8"
4.53
928
Inur�arrics {p m}
Alkalinitv
78.8
78.9
177
171
157
199
111
184
187
297
427
435
465
520
492
its
194
;i9
449
Carbon Dioxide (M)
109
100
77
70
79
136
57
132
91.9
41
48
40
75
48
106
7.1
87.1
36
44
70
198
198
Chloride
20.2
15.8
56
56
55
49
46
63.8
58.9
43
34
30
30
30
SQL
SQL
190
200
210
180
Nitrate Nitro ert
5.75
7.29
2
2.7
3.4
2.4
2.6
2.26
1.42
0.33
0.37
BQL
0,3
0.24
0.151
0.311
4.9
0.64
0.54
0.32
lfate
35.00
41.00
BQL
BQL
SQL
BQL
BQL
BQL
41.20
BQL
BQL
BQL
BQL
BQL
BQL
68.40
BQL
BQL
BQL
BQL
p!S,ufide
BQL
BQL
BQL
BQL
BQL
0.07
BQL
0.540
SQL
SQL
0.01
0.1
0.2E
BQL
0.760
BQL
BQL
BQL
0.07
BQL
tal Or anic Carbon TOC}
1.42
1.32
2.4
13.6
4.R
5
3.3
1.14
LSO
9.9
22.5
13-3
5.1
6.3
2.01
2.78
1.S
17.7
64
156
Organics - Metabolic Acids (r nr)
Acetic acid
NA
NA
SQL-
BQL
BQL
BQL
BOIL
<1.00
BQL
BQI
BQL
BQ1.
BQL
BQL
BQI,
BQL
BQL
1 4,7
44
100
Bu c acid
--
NA
NA
BQL
BQL
BQL
BQL
BQL
<1.00
BQi.
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL.
BQL
37
34
Lactic acid
--
NA
NA
BQL
BQL
BQL
SQL
BQL
<25.00
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Pr ionic acid
NA
NA
BQL
SQL
BQL
BQL
BQL
<1.00
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
35
130
Pvruvic acid
NA
NA
BQL
BQL
BQL
B L
B L
<10.00
B L
B L
BQL
BQL
BQL
B L
B L
B L
BQL
f3Ql-
BQI-
BQL.
I.Vethanc. Elhayw. Ethane yh/
Ethane
NA NA
27
BQL
SQL BQL
BQI
669-7
T 6.290
29
BQL
BQL
BQL
BQL
0.170
BQL
BQL
BQL
BQL
BQL
Ethene
NA NA
25
BQL
BQL BQL
BQL
0.160
0-150
27
BQL
BQL
BQL
BQL
0.230
0.031
BQL
BQL
BQL
SQL
Methane
DNA NA
7.4
BQL
BQL BQL
BQL
1.7
2.1
11
SQL
SQL
BQL
S L
2.8
1.5
S.b
B L
B L
73

TABLE 2
GROUNDWATER ANALYTICAL RESULTS
Precision Fabrics Group, 1 nc.
Greensboro, North Carolina
ECS Project G-6175A
WFL-L I
Gtoundwater
Remediation
Goals
OW-2
du .l
OW-3
OW-3
OW-3
OW-3
OW-3
aw-3
d
OW-3
OW-3a
OW-3a
OW-2
OW-2
OW-2OW-2a
OW-2a
{1K-2a
OW-2a
OW-2a
OW-2a
MV-2a
Screened Interval (ft.bgs)
45-65
45-65
45-65
45-h5
25-35
25-35
25-35
25-35
25.35
25.35
25-35
120-150
120-150
120-150
120-150
120-150
120-150
120-150
83-103
83.103
Date Sampled
081270003
05115/2006
051162006
11/01/2006
11.0612002
01/212003
0410112003
W11/2003
08128I2003
05+15i'2006
10/27/2006
11107r2002
01i2012003
013112003
OW1012003
08127I2003
08R712003
to to 2006
It107r2W
0If?0.?003
1 olarilc• Organic Co ands (e&
Benzene
Beene
1
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Bromodichloromethane
NE
BQL
BQL
HQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Sec-Butylberizcne
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
SQL
BQL
BQL
Tert-Butylbenxem
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
Carbon tetrachloride
0.3
BQL
BQL
BQL
BQL
BQL
6
5
6
5
BQL
BQL
BQL
17
13
4
BQL
BQL
BQL
BQL
24
Chloroform
70
21
BQL
BQL
SQL
BQL
7
6
6
6
BQL
BQL
BQL
16
15
I
8
8
BQL
BQL
12
1, 1 -Dichloroethane
70
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
SQL
BQL
SQL
BQL
13QL
BQL
1.2-Dichloroethanc
0.38
BQL
BQL
SQL
SQL
BQL
BQL
0.9
0.8
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
1,1-Dichloroethenc
7
7
BQL
BQL
HQL
BQL
BQL
0.7
0.6
0.5
BQL
BQL
BQL
4
4
5
6
6
BQL
BQL
BQL.
cis-1,2-Dichloroethene
70
1,900
1,740
1,790
910
950
620
370
350
350
506
468
940
1,200
1,800
1,600
1,500
1,400
2,520
400
330
trans-l.2-Dichloroethene
100
16
BQL
BQL
BQL
BQL
BQL
2
6
3
BQL
BQL
BQL
6
7
11
14
14
BQL
BQL
BQL
Naphthalene
21
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQI.
BQL
BQL
BQL
BQL-
BQL
-Letrachloraethenc
0.7
82
BQL
BQL
BQL
BQL
19
14
15
13
BQL
BQL
BQL
100
95
89
78
77
250
370
Toluene
1000
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
1,1,2-Trichloroethane
5
BQL
BQL
BQL
BQL
BQL
BQL
HQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
HQL
BQL
SQL
BQL
Trichloroethene
2.8
9,100
7,900
8,300
5,820
3,400
2,300
1,300
1,400
1,400
1,960
2,410
6,400
7,500
11,000
7,300
7,100
7,000
5.660
4,100
3.800
Vinyl chlnride
0.015
BQL
BQL
B L
BQL
B L
B L
EIL
B L
BQ1_
B L
B L
BQl-
B L
13QL
BQ[
BQL
BQI.
BQl
I L3Q1
BQ1
17r1a1s ( mj
Dissol-ed [Ton
NIA
3.90 6.25
6.24
SQL
SQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL BQL 0.245
1.18 0.419 0 34:
1.01
BQL
BQL
17errOUS Iron
NIA
12-1 10.4
7.13
4.11
HQL
BQL
HQL
BQL
SQL
BQL
BQL
I BQL BQL 0.7
2.11 1.19 1.32
2.49
BQL
BQL
Manganese
NIA
9.10 4.29
4.15
3.34
0.719
0.655
0.226
0.0391
0.0714
1.05
I.R3
0.01 15.30 22.10 27.80 31.40 32.00
2.53
B L
wlw
Inorganics Ippni1
Alkalinity
483
232
2
100
74-9
135
163
211
211 61.9
177.0
115
256
327
515
0.613
580
138
145
132
Carbon Dioxide (C(D,}
108
246
179
142
40
22
119
70
79 35.2
117.0
44
50
40
88
0.07
0.07
109
40
32
Chloride
190
148
154
117
200
14
i00
120
90 12.2
67.3
1,900
1,400
1,500
1,400
1
1
1,080
460
380
'citrate Nitrogen
BQL
0.119
0.134
SQL
7.9
3.3
2.9
3
3 0.815
1.05
5.4
1.5
1.1
0.34
BQL
0.0027
0.466
9.7
9.4
Sulfate
--
BQl_
BQL
BQL
59.00
BQL
BQL
BQL
BQL
BQL SQL
149.00
SQL
BQL
BQL
HQL
BQL
BQL
63.00f�Rj
BQL
Sulfide
L0.11%,
BQL
BQL
BQL
BQL
300
SQL
BQL
BQL 0.52$
BQL
BQL BQL BQL BQL SQL BQL
BQLSQL
Total Or ganic Carbon (TOC)
161
1-58
1.4!+
{l,44
8.4
r1.r1
$.7
5.9
4.[l 4-2[1
3.4h
l.] 61 228 351 0.438R 0-4574
37.6
3.6
f)r ani['.s-;tlrrnhulir.9rklctPpn;l
Acetic acid
52
< 1.00
NA
2A
BQL
BQL
BQL
13QL
BQl_
< 1.00
BQL
BQL
26
100
35t1
28
55
78.0
BQL
BQl-
Butyric acid
34
<1.00
NA
BQL
BQL
BQL
BQL
BQL
BQL
<1.00
SQL
BQL
BQL
1A
11
44
41
2.8
BQL
BQL
Lactic acid
--
BQL
<25.00
NA
BQL
BQL
SQL
HQL
SQL
BQL
<25.00
BQL
BQL
BQL
54
SQL
BQL
BQL
BQL
BQL
BQL
Pr ionic acid
-•
118
<1.00
NA
BQL
BQL
BQL
BQL
SQL
BQL
<1.00
BQL
BQL
6.8
78
280
145
132
15.0
BQL
BQL
Tyruvic acid
BQL I
< 10.00
NA
B L A
BQL I
BQl_ I
BQL
BQL
I SQL
10.00
BQL
BQl-
SQL
HQL
BQL
BQL.
BQL
B L
B L
B L
ilclhanc°. Ethane. 1irh,nu (pphj
Ethane
BQL
0.280
NA
0.054
BQL
BQL
BQL
BQL
BQL
0.170
0.032
BQL
HQL
S
9(]
BQi.
BQL
Fthene
BQL
0.680
NA
0.310
BQL
BQL
BQL
BQL
BQL
0.530
0.240
BQL
BQL
BQL
BQL
BQI-
BQL
1.(HK1
BQL
BQl-
l+ ethane -�
BQL
500
NA
420
9A
BQi.
BQL
BQL
BQL
14
1.5
BQL
BQL
BQL
BQI-
720
690
13.{>i3c1
BQL
BQL-

TABLE Z
GROUNDWATER ANALYTICAL RESULTS
Precision Fabrics Group, Inc.
Greensboro, North Carolina
ECS Project G-6175A
WELL 1D
Groundwater
Remediation
Goats'
OW-3a
OW-38
OW-3a
OW-3a
OW-3a
OW4
OW4
OW4
OW4
DW4
(dup.)
OW-4
OW-4
OW4
OW-4a
OW-4a
OW-4a
OW-4a
OW4a
Screened Interval (ft. bgs)
83-103
83-103
83.103
83-I03
83-103
120-150
120-150
120-150
120-150
120-150
120.150
120-150
120.150
83-103
83-103
83-103
83-103
83-103
Date Sampled
03131ON"
Oh.16'2WO
08r2712(X)3
0506r2006
1013112006
11/0702002
(11/ 2CM3
OVOU-7003
1)6J10l2M3
(WI012003
08127r2003
05r16r2W6
10.111 200t'
11070-602
011270-00;
n4101r2003
(16/1112003
0wSr2ow
I'olarile Organic C•onr xrnds ( b)
Benzene
l
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Bromodichloromethane
NE
BQL
BQL
BQL
BQL
BQL
SQL
BQL
SQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Sec-Butylbenzene
70
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
Teri-Butylbenxene
70
BQL
BQL
BQL
SQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Carbon letrachloride
0.3
31
24
22
BQL
BQL
SQL
18
13
BQL
BQL
BQL
BQL
BQL
BQL
36
23
29
27
Chloroform
70
11
12
11
BQL
BQL
BQL
20
17
17
17
16
BQL
BQL
BQL
21
18
21
17
1,1-Dichloroethane
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
1,2-Dichloroethane
0.38
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
$QL
5
5
BQL
I.1-Dichloroethcne
7
1
1
BQL
BQL
BQL
BQL
12
11
8
lI
9
BQL
BQL
BQL
12
9
11
10
cis-1,2-Dichlorocthene
70
300
290
270
332
255
3,700
3,800
3,700
3,500
3,700
3,200
3,010
2,640
3,500
3,500
3,300
3,300
3,400
trans-1,2-Dichloroethcne
100
1
2
BQL
BQL
BQL
BQL
19
17
17
1K
20
BQL
BQL
BQL
17
14
17
23
Naphthalene
21
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQI-
BQI-
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Tetrachloroethenc
0.7
360
320
300
270
125
BQL
89
86
90
89
78
BQL
BQL
BQL
100
82
90
79
Toluene
1 L100
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQI_
BQL
SQL
SQL
BQL
BQL
1,1,2-Trichloroethane
5
BQL
BQL
BQL
BQL
BQI.
BQI.
BQL
BQL_
BQL
BQL
BQI-
BQI_
BQL
BQL
BQL
BQl-
BQL
BQL.
Trichlornethenc
2.8
3,900
3,100
3,200
3,180
3,300
12,000
14,000
12,000
10,000
12,0(10
10,000
8,960
9,9""0
13,000
15,000
13,0ikI
12,000
13,000
rml chloride
0A,15
BQI
BQI-
BQI.
BQL
J BQL
BQL
I BQI-
I BQL
I BQL
BQL
BQL
1301-
BQL
w),
BQI-
BQL-
13QI
BQL
1Llcfals op-)
Dissolved Iron
NIA
BQL
BQL
BQL
BQL
BQL
BQL
0.31
1
1.18
1.24
0.504
0.720
BQL
RQ1-
BQL
0.104
BQL
BQL
Ferrous Iron
NIA
BQL
BQL
BQL
0.120
BQL
BQL
0.35
BQL
BQL
BQL
0.37
1.56
0.793
BQL
BQL
BQL
BQL
BQL
klan ancse
NIA
0.0265
0.0342
0.0348
0.021
0.017
0.0477
2,02
4.6
7,99
7.68
8.18
3.26
4.60
POI
1.19
1.76
0.618
0.513
Inorgaincs ( nt
Alkalinity
120
142
123
105
103
158
243
312
388
411
384
351
305
108
132 138 134
108
Carbon Dioxide (CO2)
44
53
35
61.6
33.4
44
66
66
44
40
35
119
75.2
75.2 75.2 75.2 75.2 75.2
Chloride
-
370
320
300
257
294
170
190
180
140
i40
150
12.8
142.0
160
180
160
180
160
Nitrate Nitrogen
--
10
9.5
9.7
6.57
7.39
3.3
1.1
0.87
0.52
0.63
0.28
0.377
0.263
4.2
2.8
2.8
3.1
3.6
Sulfate
--
BQL
BQL
BQL
SQL
51.20
BQL SQL BQL BQL BQL BQL BQL
40.20
BQL BQL BQL BQL BQL
Sulfide
--
BQL
0.06
BQL
BQL
BQL
BQL 0,09
BQL 1.95 0.95 0.05
BQL
9.36
BQL
BQL BQL 0.04 0.1
Total Organic Carbon [TDC)
4.2
3.3
4.4
BQL
Q.53
1.8 41.8
93.9 104 91.2 220.9
8.56
7.16
I
10.8 7 4-7 5.6
( rgunic s - Mcfabolic Acids ( pi)
Acetic acid
BQL
BQL
]?
I.[►I}
BQL
BQL
11
63
1211
I20
5"
8.00
7.9
BQI.
BQI.
BQI_
SQL
BQL
Butyric acid
BQL
BQL
17
< 1.00
BQL
BQL
BQL
BQL
20
19
23
1.50
BQL
BQL.
BQL
BQL
BQL
BQL
Lactic acid
BQL
BQL
BQL
<25.00
SQL
BQL
SQL
SQL
BQL
BQL
BQL
<25.00
BQL
BQL
BQL
BQL
BQL
BQL
Propionic acid
--
BQL
BQL
25
< 1.00
BQL
BQL
5.1
16
58
57
74
6.00
BQL
BQL
BQL
BQL
BQL
BQL
Pvruvic acid
BQL
BQL
B L
<10.00
BQL
BQL
13L
BQL
BQL
BQL
BQL
<10.00
BQL
BQL
BQL
BQL
BQL
BQL
Afethaw. F.rhane. Enccnr ( 6)
Ethane
--
BQL
BQL
BQL
0.120
0-032
BQL BQ1-
BQI
BQI-
BQL
BQI-
0.670
0.240
BQL
BQl
BQL
BQL
BQL
Lthene
--
BQL
BQL
BQL
0.180
0.098
BQL, BQL
BQL
BQI
BQL
BQL
1.800
0,880
BQL
BQl-
BQL
BQL
BQL
Methane
B l_
BQL
BQL
42-0
6.0
7.2 BQL
SQL
BQI-
BQL
27
I'M)
870
BQI-
B01
BQL
BQL.
BQL

TABLE x
GROUNDWATER ANALYTICAL RESULTS
Precision Fabrics Group, Inc.
Greensboro, North Carolina
ECS Project G-6175A
WELL 31)
Groundwater
Remediation
Goals"1-IX[I
OW-4a QW a
d
fW-3
IW�
IW-S
IW-6
Trip Blank
Trip Blank
Trip Blank
Trip $laMTripBlank:Trip
Blank
Equipment
Blank-1
Equipment
Blank-2
Equipment
Blank-3
Equipment
Blank-4
Equipment
Blank-5
F.quirmew
Blank-n
Fqulpment
Blank --
Screened Interval (ft. bgs)
83.103 83.103
40-70
100-150
100-150
100-150
NIA
NIA
NIA
NIANIA
NIA
NIA
NIA
NIA
NIA
N .A
ti A
Date Sampled
OSi28l2IXIJ I[tr+ �n
Itn161200i
II n7120[12
11�07i2[lOj
41rIm �[ar?
IiS1?Sn_00[5
106/2006
10R712006
Iq/3[s.n i
IA)112006
7. n
1[s+-s Ititb
10/26/2006
10/2712006
10/3012006
101311200r
1 1451 '1,+,r•
It o. 'thin
1 o1wile Organic Compnrinds (h)
Benzene
1
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
SQL
BQL
Bromodichloromethane
NE
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Sec-Butylbenzene
70
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
Tert-Butylbenzene
70
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
Carbon tetrachloride
0.3
28
BQL
SQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
Chloroform
70
19
BQL
BQL
BQL
BQL
BQL
2.33
BQL
SQL
BQL
BQL
BQL
0.93
SQL
0.75
BQL
0.56
0.52
BQL
1,1-Dichloroethane
70
BQL
BQL
BQL
SQL
B L
BQL
BQL
BQL
BQL
8QL
8QL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
1,2-Dichloroethane
0.38
BQL
8QL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
1.1-Dichloroethene
7
11
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
cis-1,2-Dichloroethene
70
3,100
2,230
3,900
2,300
4,000
4,3
BQL
BQL
BQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
trans-1,2-Dichloroethene
100
23
BQL
BQL
BQL
BQL
BQL.
BQL
BQL
BQL
BQL
BQL
SQL
BQL
BQL
BQL
13QL
BQL
BQL
SQL
Naphthalene
21
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Tetrachloroethene
0.7
83
BQL
BQL
SQL
BQL
BQL
BQL
BQL
SQL
SQL
BQL
SQL
SQL
BQL
BQL
BQL
BQL
BQL
SQL
Toluene
1000
BQL
I BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
SQL
BQL
1,1,2-Trichloroethane
5
BQL
BQL.
BQL.
BQL
BQL
8QL
BQL
BQL
8QL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
BQL
Trichloroethene
2.8
11,000
10,100
13,000
9,800
15,000
13,000
BQL
1.02
BQL
BQL
BQL
SQL
SQL
BQL
BQL
BQL
BQL
BQL
BQL
�'im 1 chloride
0.015
BQ1.
BQI.
SQ1
BQL
RQ!
BQI.-BQl
B L
BQL
13Q1.
BQL
B L
BQ[
BQl
BQL
BLit
13Q1.
B i
RQl
4leials (m)
Dissolved Iron
N..A
BQL
BQL
BQI.
BQL-
BQI.
BQI.
NIA
NIA
NiA NIA
N A NIA
BQI.
BQl
BQL
I BQI,
I BQL
I BQL
BQI.
Ferrous Iron
N. A
BQI,
0.158
0.64
BQL
BQL
SQL
NIA
NIA
NIA NIA
NIA NIA
BQI.
BQI.
BQl
BQI-
BQL
BQI.
BQ
Man Ur sc
N A
o,54:
0,417
01 19)
MM94
13L
0.0353
N: A
NIA
N/A I NIA
J N, A J NIA
I BQI-
B L
BQL
BQL
BQL
BQI.
BQL
1n0rg(.fP6 _s (ppn+l
Alkalinity
128
98.8
109
119
174
133
NA
NA
NA
NA
NA
NA
5.05
2.02
1.01
1.01
2.85
1.90
3.80
Carbon Dioxide (CQ,]
--
75.2
75.2
76
33
BQL
38
NA
NA
NA
NA
NA
NA
2.90
1.67
1.94
1.68
1.67
1.67
BQL
Chloride
--
160
132
200
960
300
190
NA
NA
NA
NA
NA
NA
SQL
BQL
BQL
BQL
1.02
BQL
BQL
Nitrate Nitrogen
--
3.6
8.11
4.2
3.3
3A
2.9
NA
NA
NA
NA
NA
NA
BQL
BQL
0.210
0.226
BQL
0.062
BQL
Sulfate
--
BQL
44.40
BQL
BQL
BQL
BQL
NA
NA
NA
NA
NA
NA
BQI.
BQL
BQL
BQL
BQL
BQLJ
BQL
Sulfide
0.01
1BQL
TBQL
BQL
0,11
BQL
NA
NA
NA
NA
NA
NA
BQL
BQL
BQL
SQL
BQL
BQL
Total Dr anic ('arbnn TQC)
5.3
2.11
1.8
1.3
1.8
1.4
NA
NA
NA
NA
NA
NA
NA
B L
BQL
B L
B L
S L
Rj
Organic - Alcrahulic Acids (a tn)
Acetic acid
BQI.
3.8
BQL
BQL
BQL
BQL
'tiA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
;tiA
NA
Butyric acid
BQL
BQL
BQL
BQL
BQL
BQL
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Lactic acid
--
BQL
BQL
BQL
SQL
BQL
BQL
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Pro ionic acid
--
BQL
BQL
SQL
BQL
BQL
BQL
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Pvruvic acid
--
B L
B L
B L
B .
$ L
B L
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
,1k rhane. Elharre . Erlu ne r h/
Ethane
-
I§Q-]---1
0.047
1 BQL
I BQL
I SQL
I BQL
I NA
NA
I NA I NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Ethene
BQL
0.190
BQL
BQL
BQL
BQL
NA
NA
NA NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Methane
13L
170
8A
7.9
BQL
BQL
NA
NA
NA NA
NA
NA
tiA
NA
NA
NA
NA
NA
NA

TABLE 3
GEOCHEMICAL MEASUREMEN'r5
Precision Fabrics Croup, Inc., Greensboro, North Carolina
ECS LLP Pro ect 09-6175A
BEFORE 511:L1. 11Ul{[JNG
:iH'i'Elt
Date
li
F-11
ITemperaturelConductkili
('elsius
Uissol►ed O, HeDoa
(ttt5lrnt) rt► I lml'}
pll
T'emperalurc
"{:elsius
Cunducti►itr
twSlsnt)
Uissulred 0,
rn III
ReUux
4nfV)
M 1V-1
I U 24 2111k,1 6.32
20.4 0.722
12.6
4.U1 6.32
21.4
0.006`
51.3#9�
2t,97` 6.36
2U.K 0.670
4-8
36.9 6.36
20.3
11-723
9.2
1I%V-2
10 _'-i 2 lien•
IT. 11) 223
f1.41
50.8
48.1 6.09
22.2 0-63I
i? 0
_tl 1
11 25 2u07'
[r.7? 21-6
1.4116
5.2 -
19.8 6.19
22.0 t1.695
15.0
-- a? 8
h 1 r-3
10- 24; 2006'
5.66 1 & 1
0.555
41.4
77 6.70
18.7 0.996 78.7 174.3
11:2512007'
5.92 18-0
0.546
25.1
63.9 6.34
18.3 0.732 43.1 41.11
M ►V-31
111 _'4 21111r,•
[,.3 17.'
(l-55k S.4
44
1} 18.1 0.666
7.3 196
] ,t 1111 ]•
634 ] x.3
U.SX4 13.0
40 ]
i, i4 18.0 0.682
11.1 38.2
M -6
RV2412MA-1 6.9
1 19.9 1 I bs i
1 36.1
9.7
6.51 1 20.2
1 0.718
1 12.3
28.2
1'25'2007• 6-35
12.4 1 4-093•
1 76.0
37.2
1 7-25 18.5
1 0-661
20.2
149.1
NI W-7
Ili -14.2n{if)
r).3-4 '-I1'_ I1.SU1 20 40.5
11 6.23
20-4
0.52
34.0
46-3
11. _' 200-
r, '-I 19 h I1.105 1 (1. L40 9
6 39
I-o.5
11,5118
1 16.1
163.2
h111'-8
11 (1 24 2f0r)1 n 53 15.7
0.347
57.3
39.7 1 6.50
i5.7 U.344 67.5
31
fl 2, 200-f If.-i2 1 15.5
1 0.349
49.5
33.0 7.54
15-1 0.35 59.2
86.3
h1 WD
I [1 24 21)"" 6.49 19.4 U.641
3.5
29.7
6.55
1$.9 0.05 51.9
203
1 _'1_'ul1 536 19.9 0.099
4-5
83.3
5.93
19.3 U-1186 8-9
629
M
u 2.1 2nlx,` 7i
21) 9
11 1 x!
43.9
72
5.70
21.0
0 Ix4 41.2
7i.r1
11 '� 2111;•. i 9r1
2I12
111xx
17.7
u3.7
5.93
20.1)
a IX2 ]6.5
'7,7
M W-12
1u 24 2fl+in"R
sa 15.6 u.42 26 26.5
0.48 15.5
0.387
26.2 2ik o
11 '5 20U7''
15.9 1p 314 12 27.4,
r018 14 2
0.36
5 i.i 211.21
11 M W-13
IIu2412006' h,xX
19 r,
11.-
711 h
15.8
0.71
19,t,
I,$'
i'Y 1
1 X
J1,2512[i07• 48
13.i,
I] I151
47.5
-_'3.2
6.h2
i f1.l
0 U8n
21 .'12
2 7 j
h1H'-ISs
Ill _'4:21}[l6•
11.5
17.6
fl -1 55.5
2=1 9
n 42
17.9
0 252
if,.3
13 3
11.25211117•
6.I5
16.4
i1.1f2 48.3
47.r,
r+.57
16-6
f1 s]
40.2
24.7
Ai 11'-15d
10 -4 2006' 7.1'1 1?
113x
15
z y
n x_'
18.3
0 ilk:
i1.1
111.K
_
11.25 21)07' 7 23 ki,.3
(1 3X2
14.0
_
k t.3
h.76
17.0
0 21 -
1.3.7
t 5.36
h1 W-171
Io-14 21n1r+• 0.5U
17.0
I)9I=r
r+1 r,
2i,14
(..2X
I7.f+
U.9
U.944
i4f,
41.7
11.25.2007• n.SX
16.5
1).X92
in ]
26.7
n 33
17.3
_
53
39.1
M W-20s
I 24 2f1t16•
10.nr+ I=J.3��ij
2Xx
:1 3.S
n=11 I'1.0 1164n
:5I_'S
_'llti7•
i.i4 19.6
33.6
w4.'o
'1 o 18.6 0.0'J8
?l19
164.4
AI1V-20i
II] 24 _'i1136• F1.35
1(7 5
0 41 1
X7.6
43. t
f, I,[,
19.5
f).S52
11 25 21 i11;• i xt,
144
a 194"
i.g
16n.8
n.71
IB.0
i1.524
44.f1
16.8
M W-20d
l0 24 21111r,•
1 2 q 2,+11"
n 4x 19._' 114xt 514-1
i ; n
14.3
If 1,2
ri 59
18.8 (1.481
1 K. i 11,48 -
71).5
21.8
- ] i+.11 1r 3 _ 27 X
M W-21 s
111 25 21Ifif)
h.3x 17.5
[1 1", 4S 2
39.9
I+ it, Ix.2
If.3ryn
5[,.9
.3X.6
11. 25 2I1fi7• b. t,� in.�] rt 234 79.9-14'l.6 6Ufl 15.x I1. i69 49.7 2.8
ht W-21 i
III 25 -Inm'
Of,
17 3
11.114
1i X
2_' '
6 rr2 17.0
11.11 h
h i.2 21.4
1 i"
17.5
f1.45h
2 5
?U r1
6 74 Ih.S
11.3110
58 13 n
10 25 200f, x.vrJ 17 ? 0.47X 13 -4 l ltx [+ !, 72 17-2 0.459 70.2 16.2
-
h1 W-22s
11.0612002
6M4
19.7
U.686 0.63
149
6.17
19.3
0.694
3.65
192.3
01/20/2003
6.55
19.5
0.839 2.07
3
6.53
19.5
0.796
2.5
54
03/31/2003
610
19.5
1.07 1.3
72
6.77
19.3
0.857
3.33
94
6/11/2003
6.85
19.5
0.905 1.17
18
6.86
19.8
0.889
2.05
42
08/28/2003
7.14
19-5
0.988 0.75
102
7.04
19.5
0.893
4,40
104
10,124/2006*11i
6.31
211.1
0.787 8.IU _
39.5
1 6.65
1 20.2
0.014
76.9U
17
II 25 2(K}7'
6 5ir
I 20 4
11.261 X.'
25.7
1 o.95
19.1
n.35=Y
62.o
3.8
h1 W- 31
II:06.2002
.15
18.3
0.699
1.08
-176
6.37
18.9
[1.850
0.90
24-5
6.44
19.1
0.722
0.83
139
6.37
19.7
0.951
1.10
171
0313112003
6.38
19.3
1.36
0.33
172
6A3
19.0
1.18
U.95
122
1ul/20/20U3
06/10/2003
6A3
19.7
0.844
3.19
217
6.45
20.1
1.11
3.75
179
007/2003
6.77
1 19.4
0.770
101
187
6.62
19.4
OMS
2.97
178
1012412006-0,17.01
I8.8
0.766
67.80
11.6
6.61
19,1
0.778
45.80
182 6
1/2512007'
7.00
18.6
0.782
7-1
3.8
7.U9
18.4
0.792
IS.!
u.k
h1 W-22d -
1 1,(*/20021
6.40
1 18.4
1.43
4.33
iO3
6.30
18.6
1.61
4A5
117
01/20/2003
6.36
18.6
1.56
1.22
83
6.41
18.7
1.72
U.74
105
03/31/2003
6-59
19.2
1.69
0.45
I15
6.57
18.9
1.68
3.51
135
06/11/2003
6.57
19,2
1.57
1.68
78
8.25
19.4
0.184
1.94
90
08128/20U3
6.89
18.9
1.32
0.25
75
613
19.5
1.24
OA9
52
10/2412006*1
7.38
18.75
0110
76 9
11.8
7.45
19-07
0.225
78.6
147-4
r1.25 2007'
8.03
18 5
iw42
47.5
b4.7
7.20
18.8
0.148
35.5
6.5
M W-23s
II/D612002
6.65
19.0
0.002
0.41
40.5
h.52
19.6
o.592
4.55
66-5
01/20/2003
6.45
19.3
0.572
0.72
157
6.35
19.5
0.578
1.57
164
W5112003
0.89
M5
1.070
1.30
72
6.77
19.3
0.857
3.33
94
0611112D03
6.62
20.1
0.584
0.75
72
6.75
19.6
0,555
1.29
too
OMS12003
6.90
19.5
0.598
0.49
76
6.94
26.0
0.595
1.73
102
IU12412006
6.49
19.5 i
0.814
2.00
28.2
6.57
i9-7
0.728
19.00
25.2
01/2512007
6.67
19.52
0.758
6.8
19
6.78
19.36
0.725
47.6
12.8
NIW-24s
3 u 24 2nU6'
r1.24
19-0
0.455
17-10
45.2
0.27
19.1
0.384
58-90
43.3
II 25 2U1i7'
6.711
IN 5
0.439
24.7
149.3
O] I
18.6 1
0.435
3U.6
34A

TABLE 3
GEOCIIEMICAL MEASUREMENTS
Precision FAbrics Group, Inc., Greensburg, North Carolina
EC S LLP Project 09-6175A
BEFtlRE 11' 1,L PC R(JNG
AFTER NVELL PURGING
Date
cr>tperuturc
pit
p1l "Celsius
['unducti►it► llissuls[[I C],
{trtSlcnt) wail
HeDoxL11"C't
t[tll }
_
fernPcrnture
lsius
C ojlducd'�il%
[ntSIctnj
INSSo red C1.
tut ,/1}
Rehu►
Ilnl 1
OW-1
II.Ut,,2002
6.29
19,7
U-531
0-62
73.7
o.28
19-4
U.515
.3.14
-43
0112W2003
6.14
19-6
0.531
0.50
135
6.34
19.1
0.526
2.05
98
03/31/2003
6-94
1916
0.488
0.59
265
6.65
19.4
0.513
1 J6
244
oo/IO/2003
6.65
20.0
0,487
1.54
202
6.62
20.3
OA83
1.95
181
08/27/2003
6.8
19.5
0.487
1.18
215
6.80
19.8
0.478
4- l4
2U2
1 U124/2006*
6.75
19.2
0.619
66.30
16.5
6,67
19A
0.644
61.10
59
id.25.2007"
,.Is
19.0
0-037
40.2
3.6
7,15
17.8
0.635
42.3
5.6
OW -la
11*612002
7.2
19.7
0,767
0.69
-71.7
6.78
19.3
0.714
2.25
123.5
01/20/2003
6.94
19.5
0.991
0.33
20
6.95
20.0
0.830
0.70
54
03'31/2003
7.07
19.6
0.868
0.22
3
7.L0
19.4
0.914
0.24
73
06A 1/2003
6.97
19.5
0.869
0.23
56
7.10
19.7
0.895
0.27
-11
08128121103
7.3
19,2
O.943
0.16
37
7.28
19-4
0,948
0.44
46
V U; 24120[ la'
4.71
19.4
1.090
3.00
17
6.74
19. 5
0.985
17.90
14.7
+11 25'{rl!'•
t,.x4
ICo. 5
I f123
9.4
6.89
19-7
0-949
36.6
[,.+
-- OW-2
1l.fu+.2002
t,.15
18.6
U.S92
i_.
200
5.48
18.5
0.895
2-47
182-5
01/20/2003
6.55
19.1
0.962
0.95
22
6-33
19-2
1.10
0.88
8
03131/2003
6.74
18.9
1.15
0.51
-77
6.67
18.9
1-2k
0.53
-30
06/10/2003
6.45
19.8
1-99
0.41
-89
1
6.63
20.6
1.62
0.57
48
08/27/2003
6.72
19.1
l .54
010
-132
6.76
20.2
1.53
0.36
- I (it)
10124/2006*
6.18
19.14
0.112
%.80
66.8
6.10
19.53
0.09
57.3
52.3
01/25/2007*
b.69
18.9
0.020*
53.8
19
6.52
18.6
1.014
13.K
27.8
D -a
11106i2UU2 6.22
18.8
1.32
3.15
146.5
6.18
18.5
1.23
1.50
154
01/20/2003 6.43
19.5
0.943
0.85
46
6.47
19.3
0.960
1.37
57
03/31/2003 6.64
1
19.3
0.773
1.03
34
6,60
19.5
0.775
U.52
86
116/1112003 6.72
19.1
0.893
1.54
-44
6.56
19.3
0-913
1.30
Il
u812812003 0.88
19.0
0.892
1.85
114
6.97
19.3
1.20
2.15
128
10. 242006* 6.35
19.3
0.701
98.6
38.5
7.38
18.6
0.061
87.4
-21A
U1 25`200746.31
1 19.11
1 IOV
3.11
44.1
[,.[,1
19-2
_
OW-3
111)b2(nl'
r+'t)
19. 1)
4.28
12.15
-15ii
-
1.9.2
5.77
12.03
29
01/2W2003
S._14
19.3
3.38
1.69
-300
7.06
18.8
5.00
1-42
-118
03/31/2003
7.31
19.1
4,27
0.30
-237
T25
18.4
3.79
0.68
-215
06/10/2003
7,6•t
20.8
3.79
0.35
-233
6m
19.8
5.19
0.36
-90
u8/27/20U3
t+.93
19.7
4.91
0.31
-170
6.68
19.3
5.42
0.31
-109
10/24/2006'
7.07
MO
3-739
47-80
-4-1
6.96
19.5
3 2
7.00
-71-4
11/2512007•
7{17
19.0
3.25]
3-0
-4.1
6.94
1"
3.170
4.1
42
O%V-3a
I1,U6,2UU2
11.36
M2
3-82
7.42
-151
8.54
18.7
2.15
4.10
-43.5
01/20/200.1
8.47
18.9
0.815
1 0.21
-272
6.88
1 19.3
1 1.520
j 0.87
-78
03/31/2003
7.46
18.8
1.25
OA6
-76
&64
18.7
1.49
1.01
169
06/10/2003
6.94
19.3
0.623
0.32
145
6.82
20.0
1.25
0.92
l35
08/27/2003
7.13
19.5
O.652
0.55
151
7.03
19.8
0.930
1.66
122
10.'2412006*
7.09
19.0
0.662
35.30
6.4
6.78
18.9
0.698
13.40
156.5
11 25 2007*
9.64
19-1
(J.176
6.1
-152.7
7.ol
19 2
0.597
8.9
03
❑W 4
1 1 /06/2002
I {1.05
18.7
1.20
4 64
-205
6.68
18.7
i .mt
1.91
-10
u1/20/2003
7.06
18.6
0.954
U.24
-80
6.74
181
I.Il
0.80
-25
1)3/31/2003
7,10
191
0.981
0.21
-160
6,91
18.7
1.27
0.38
.78
(WIO/2003
6.97
19.3
1.15
0.25
-185
6.96
19.5
1.26
0.39
-246
08/27/2003
7.49
19.0
L.17
0.16
-223
7.22
19.5
1.19
0.59
-202
1(I124/2006' 1
6.96
19.9
1.192
19.43
3.2
6.68
19,1 1
1-097
45.0
70.8
11 'S 2UU7••
�.14
Ito 1l
1 1K2
3.'1
8.(1
t,.�5
14.1
! ]91
32.5
lo.1
O W-4a
I I U6.2002
1).25
19,2
0.900
1.16
-141
5.1J2
18.3
U.7YU
I.95
97.5
U1:2o.;2UO3
6.42
19.2
0.783
0.93
-225
6.21
18.7
0.786
0.60
•44
U3131i2003
6.67
19.3
0.768
0.20
-157
6.49
19.5
0.792
0,43
-l6
0611;2003
0-56
19.2
0,766
0.65
-197
6.49
19.4
0.773
0.51
-96
U'i 2S 1903
6-65
19.0
0.732
0.55
84
6.57
19.6
0.744
0.74
8
10 24,U6**
9-82
19.1
0.267
92.5
-163.2
6.84
193
0.064
66.50
-142.6
}1 25 2ut17•
x-27
19-3
0.470*
1.8
-73.9
6.96
19.15
0.076
5-2
1.9
I W-1
! I1h 211f+2
h.2N
19 7
U.9M,
5.0'
113.5_JL
{,.14
14 h
i1.8Uh1
9.ii7
FRiiin.
i1V-2
I
19.1
0004
-'.24 kl!!.5
t,,13
1`1.6
1.1111
1 _']
142.5
1 W-3
I I flh. 2002
5 92
1 1).4
11.(0
5 70
154
6.09
19.5
11,K45
i
! 91
I1►'-4
1 I.nt+ 2UO2
37
?iJ I _
?. 71,
�.12
k61.3
o.41
ail.?
3 a?
1 UI
r l 3
1►V-5
l ut+ 2uf12
1 d2
211.1
1 3-
3.53
Ui.5
K.1]
20.2
1.32
4 1n
n,S
1W-6
ll U6,?un2
6.SS
20.4
O.Iu}2
2.72
83
6.5f1
19.9
1y,885
'_-tik
n1.3
ReDox - Oxidation/Roduction Pcaential
mgll - milligrams per tiler tppmj
mSJctn s microscimens per centimeter
mV - millivoils
h1W - Monnaring Well
OW = Observation Well
1W - Injection Well
* = Unstabilized reading
• "
Dissolved oxygen is in % Saturation

TABLE 4
REMEDIATION SCHEDULE
Month/Year
Scope of Services
November/December
Submit Injection Permit and Obtain Approval
2007
Drilling - Injection Well/Observation Well Installation
January/February
Investigative Derived Waste Containment & Disposal
2008
Laboratory Services — Waste Disposal Sampling
ECS Field Services/Project Mana ement
HRC0 - Supply
March 2008
HRC® - Injection
ECS Field Services/Project Mana ement
April 2008
HRC9 - Injection, if necessary
ECS Field Services/Project Management
Laboratory Services — Post -Injection Groundwater Sampling —
(includes monitoring wells and observation wells in the vicinity of
June 2008
the injection area)
Investigative Derived Waste Containment & Disposal
ECS Field Services/Project Management
Laboratory Services — Post -Injection Groundwater Sampling —
(includes monitoring wells and observation wells in the vicinity of
September 2008
the injection areas)
Investigative Derived Waste Containment & Disposal
ECS Field Services/Project Management
October/November
HRC® - Injection, if necessary
2008
ECS Field Services/Project Management
Laboratory Services — Post -Injection Groundwater Sampling —
(includes monitoring wells and observation wells in the vicinity of
December 2008
the injection areas)
Investigative Derived Waste Containment & Disposal
ECS Field Services/Project Management
Laboratory Services — Post -Injection Groundwater Sampling —
(includes monitoring wells and observation wells in the vicinity of
March 2009
the injection areas)
Investigative Derived Waste Containment & Disposal
Laboratory Services — Post -Injection Groundwater Sampling —
(includes monitoring wells and observation wells in the vicinity of
June 2009
the injection areas)
Investi ative Derived Waste Containment & Disposal
Laboratory Services — Post -Injection Groundwater Sampling —
September 2009
(includes monitoring wells and observation wells in the vicinity of
the injection areas)
Investigative Derived Waste Containment & Disposal
Laboratory Services — Post -Injection Groundwater Sampling —
December 2009
(includes monitoring wells and observation wells in the vicinity of
the injection areas)
Investigative Derived Waste Containment & Disposal
Laboratory Services — Post -Injection Groundwater Sampling —
(includes monitoring wells and observation wells in the vicinity of
March 2010
the injection areas)
Investigative Derived Waste Containment & Disposal
Laboratory Services — Post -injection Groundwater Sampling —
(includes monitoring wells and observation wells in the vicinity of
June 2010
the injection areas)
Investigative Derived Waste Containment & Disposal

UD r
10,
TABLE 5
PROPOSED ANALYSES FOR EXISTING, MONITORING, INJECTION AND OBSERVATION WELLS
(Pre- and Post -injection)
Precision Fabrics Group
301 East Meadowview Road
Greensoro, North Carolina
ECS Project 09,6175B
b
o.,
a
U
.�
u
°
❑
°
i.
v
m
p
°
S
d
p
o
•a
v
.0
a
„
P0
°
C
Q
a
o
as
n
e+
Z
d
w
q
e
PaUd
p
r�
d
emu
V
i
��srr
iG
G
O
10
L
.stl+
ar64
a
4!
O
titer
C
W
'n
ow
V
G"
41
�
v
,Sample ED Location
Injection Wells -Boundary (see Plat 1) Not Sampled
Monitoring Wells Boundary
MW-20
30
X
X
X
X
X
x
X
X
X
X
X
X
MW-20i
65
X
X
X
X
X
X
X
X
X
X
X
X
MW-20d
98
X
X
X
X
k
X
X
X
X
X
X
X
MW-21
30
X
X
X
X
X
X
X
X
X
x
X
h
MW-21i
100
X
X
X
X
X
X
X
X
X
X
X
X
MW-22s
33.5
X
X
X
X
X
X
X
X
X
X
X
X
MW-22i
74
X
X
X
X
X
X
X
X
X
X
X
X
MW-22d
115
X
X
X
X
X
X
X
X
X
X
X
X
MW-23s
35
X
X
X
X
X
X
X
X
X
X
X
X
-24s
32
X
X
X
X
X
X
X
X
X
X
X
X
Observation Wells -Boundary (See Plat 1)
OW-1
65
X
X
X
X
X
X
X
X
X
X
X
X
OW -la
35
X
X
X
X
X
X
X
X
X
X
X
X
OW-2
65
X
X
X
X
X
X
X
X
X
X
X
X
OW-2a
35
X
X
X
X
X
X
X
X
X
X
X
X
OW-3
150
X
X
X
X
X
X
x
X
X
X
X
X
OW-3a
103
X
X
X
X
X
X
X
X
X
X
X
X
OW-4
150
X
X
X
X
X
X
X
X
X
X
X
X
OW-4a
103
X
X
x
X
X
X
X
X
X
X
X
X
0W-510W-5a through OW- 41OW-44a
--
X
X
x
X
X
X
X
X
X
X
X
X
VOCs
Metabolic Acids = acetic acid, butyric acid, lactic acid, proprionic acid, and pyruvic acid.
Light Hydrocarbons = ethane, ethene, and methane
BGS = Below Ground Surface

icy ", �.�

^' 14
E 12
10
x
0 5
a
(D 4
N 2
N
6 0
CHART 1
Concentration of Dissolved oxygen Vs. Time
CN 0
Cr)
co 0
0
0
0
0
0
oa
v
a
o
to
a
`C)
i
CD
CAD
C)
r
C]
Q
0
CD
r
Date
OW-1
�- OW-1 A
OW-2
OW-2A
OW-3
-� OW-3A
OW-4
OW-4A

a, 60000
50000
�
40000
30000
�v
20000
U
10000
D
U
CHART 2
TCE Concentrations Vs.Time
Ctl
Cn
to
�t
t'7
u7
CO
QD
0
o
a
o
0
0
0
a
0
0
0
0
0
o
0
0
0
0
L
L
LO
r
o
r
Q
r-
Q
r-
o
r
- OW-4A
OW-4
--- OW-3A
.- OW-3
OW-2A
OW-2
OW-lA
-- OW-1

v
m
11 /01 /2002
03/01/2003
07/0112003
11 /01 /200 3
03/01/2004
07/01 /2004
11 /01/2004
03/01 /2005
07/01 /2005
11 /01/2005
0 3/01 /2006
0 7/01 /2006
111011200E
Concentration in (uglf)
srvw�Cnm--1COCDCD
ooC)oCDCDooCDCD
C) CD CD 0 CD CD a CD C7 CD C7
0 0 0 0 0 0 0 0
*:E :*****:�
1 N N W W
0
m
0
0
n
C)
� w
C
s

Concentration
in
(mg/1)
-� N W A
U1
M �1
O O O O
O
O O
O O O O O
O
O O
11161 /2002
6310 112663
67/61/2663
1110112663
6310112a64
67/61/2664
v 11/61/2664
mf-O63/41/2665
07/61/2665
ARM UN1111,19
67161 /2666
11161 /2006
o0000000
0
0
0
0
(D 0
r.
0 �
C

SECTION V.
APPENDIX

RESPONSE TO COMMENTS
February 15, 2006, Revised May 2007
.tune 28, 2007

ED
HRC Design So are for Barrier Treatment
Regenesrs Technical Support USA (949) 366-bQOO wwn.teWiesss com
Site Name: Precision Fabrics Group
Location: Upgradient Bamer (PWR,)
Consultant: ECS, Lid
Site Conceptual ModellExtent of Plume Requiring Remediatron
LefVIi of bamet (inte r sectrag " tkw% direct"i
Depth to wntaminated zone
Thickness of Conlarrrnalad saturated zone
Aquifer soil type (gravel sane nifty sand sill day etr
Effective porosity
Hydraulic conductivity
Hydraulrr gradient
Seepage velocity
8-8E-03 lcmlsec
0,583 Jfvday
Dissolved Phase Electron Donor Demand Contaminant Contaminant Stoichlometry
Conc (mg1L) Mass (11") conWa (wtlw0
Tetrachloroethene (PCE .
T rrchloroethene (TCE )
as, 1.2•01chloroethene IDCE I
Vinyl Chloride (VC)
1 1 1- T nchloroethane (TCA )
1.1-Drchlorochloroethane (DC A;
User added also add stoichrometrrc demand Isee pull -down;
User added, also add stoichiometnc demand (see pull -down 1
008
4.90
20.7
9.10
543.88
21.9
1.90
113.56
24.2
0,00
0.00
31.2
0-00
0.00
22.2
0-00
0.00
24.7
0.00
0.06
0-0
0.00
0.D0
0-0
- pult-down menu
Competing Electron Acceptors: CEA CEA Stoich. (wtw)
Conc (mg►L) Mass (IMn) e a /H
Oxygen Demand
Nitrate Demand
Bioavarlable Manganese Demand
Broavailable }ion Demand
Satiate Demand
Microbial Demand Factor
Safety Factor
Liferspan for one application
Injection Spacing and Dose:
Number of rows in barrier
Spacing within rows
Effective spacing perpendicular to flow (ft)
Total number of HRC injection locations
Minimum required HRC application rate (lb/ft)
Number of HRC delrvery points lad)ust as necessary for site
HRC application rate in lbsA (adfust as necessary for site)
Corresponding amount of HRC per point (lb)
Number of 30 lb HRC buckets per injection point
Total number of 30 Ib buckets
Total amount of HRC (lb)
HRC unit cast (5Ab)
Total Material Cost
Shipping and Tax Estimates in US Dollars
5aie" Tax rate 0 0000
Total Material Cost
Shinano of HRC (Call far Quote)
5-00
298.83
8,0
6-50
388A6
12.4
9-30
555.83
27.5
3-90
233.09
55.9
25.00
1 494.17
12.0
3 Recommend 14x
2 Recommend 1-4x
1 Year(s)
1
23 ft on Center
23.0 Max = 15 ft- Tighten SpacM
22 points
45.9
22
459
1377
45.9 11
1010
30,300
5 525
159,075
159.075
May 2005
rmovr a rrgri Pw~ car Rparesc Tad, Suppw to confirm I
Length of each injection point (ft)
70
Design and Regulatory tssue6
c
Total length for direct push for project (ff)
1.540
Groundwater monifoung and reporttng
Esbmateo daily irrstallalron rate (ft per day 300 for pustr 150 lot dnlliN
300
Other
5
Estimated points per day (10 to 30 is typical for direct push)
43
Other
5
Required number of days
6
Other
Mcbftatrcnurdemob0a3tron Cost for nnlechon subcontractor
-
OthF
t
early raie for rgecbon suboor0irasicy
C7ther
5
Tota+ iJertion subcontractor cost for appGcalron
C)the
Total InssaftOmtVwIkvbacs Teen:-A*&jnL iJbtm@X3 i.w
159,075
Total Project Cast
S 159,075

Last Revised:
HydrogRL4en Release Compound (HRO)
Nt4TEL SAFETY DATA SHEET (MSDS)
February 10, 2004
Section 1 - Material Identification
Supplier:
CW
REGENESIS
1011 Calle Sombra
San Clemente, CA 92673
Phone: [phone]
Fax: [phone]
lrnnail: info(EvxeQenesis.com
Chemical Name: Propanoic acid, 2-[2-[2-(2-hydroxy-l-oxopropoxy)-1-
oxopropoxy[-1-oxopropoxyj-1,2,3-propanetriyi ester
Chemical Family: Organic Chemical
Hydrogen Release Compounds' (E RC4)
Trade Name:
Glycerol tripolylactate and Glycerol
Product Use: Used to remediate contaminated soil and groundwater
(environmental applications)
Section 2 -- Chemical Identification
CAS# Chemical
201167-72-8 Glycerol Tripolylactate
56-81-5 Glycerol
50-21-5 Lactic Arad
Section 3 - Physical Data
Melting Point: Not Available (NA)
Boiling Point: Not Determined (ND)
Flash Point: ND
Density: 1.3 g/ec

Rrgrrirsis - HHC h4SDS
Section 3 — Physical Data (cont)
Solubility: Acetone and ❑MSO
Appearance: Viscous amber gelfiiquid
Odor: Not detectable
Vapor Pressure: None
Section 4 - Fire and Explosion Hazard Data
Extinguishing Media: Carbon Dioxide, Dry Chemical Powder or
NVater may be used to keep exposed containers cool.
For large quantities involved in a fire, one should ►wear full protective clothing and a NIOSH
approved self contained breathing apparatus with full face piece operated in the pressure
demand or positive pressure mode as for a situation where lack; of oxygen and excess heat
are present.
Section 5 - Toxicological Information
Mav be harmful by inhalation, ingestion, or skin absorption.
May cause irritation. To the best of our knowledge, the
Acute Effects: chemical, physical, and toxicological properties of the glycerol
tripolylact.ate have not been investigated. Listed below are the
toxicological information for glycerol and lactic acid.
MA8050000
RTECS#: Glycerol
Irritation data:
SKID'-RBT 500 MG/7AR MLD
85JCAE-,207,1986
EYE-RBT 126 MG MLD
EYE-RBT 500 MG124H MLD
SKN-RBT 5MG124H SEV
EYE-RBT 750 UG 5EV
J_E( +eratiarss'NSDS',H C MSDS Pagc
BIOFX* 9-411970
WCAE-,207,1986
853CAE-,656,86
AJOPAA 29,1363,46

Rcgcnes:s - HRC MSDS
Section 5 - Toxicological Information (cont)
ORL-MUS LD50:4090 MGIKG
NIIRDN 6,215,1992
FRZKAP (6),56,1977
FEPRA7 4,142,1945
SCU-RBT LD50:100 MG/KG
RCOCBS 56,125,1987
ORL-RAT LD50:12600 MG1KG
A.RZNAD 26,1581,1976
IHL-
ARZNAD 26,1579,1978
RATLC50:>578MG/M3/1HBI0
NIIRDN 6,215,1982
F7X*9.411970 IPR-RAT LD50:
dAPMA8 39,583,1950
4420 MG/KG
DMIDJAP 31,276,1959
1VN-RAT LD50: 5566 MG/KG
B10FX* 94/1970
IPR-MUS LD50: 9700 MGIKG
NIIRDN 6,215,1982
Toxicity data: SCU-MUS LD50: 91 MG/KG
FMCHA2-,C252,91
IVN-MUS LD50: 4250 MGIKG
FMCHA2-,C252,91
ORL-RBT LD50: 27 GM/KG
FAUNAU 40,144,67
SKN-RBT LD50:>IOGMIKG
JIHTAB 23,259,41
IVN-RBT LD50: 53 GMIKG
FMCHA2-,C252,91
ORJ -GPG LD50: 7750 MGIKG
JTHTAB 23,259,1941
ORL-RAT LD50:3543 MG/KG
SKN-RBT LD50>2 GM/KG
ORL-MUS LD50: 4875 MG/KG
ORL,GPG LD50: 1810 MG/KG
ORL-QAL LD50: >2250 MG/KG
Behavioral (headache), gastrointestinal (nausea or vomiting),
Target Organ data: Paternal effects (spermatogenesis, testes, epididymis, sperm
duct), effects of fertility (male fertility index, post -implantation
mortality).
RTECS#: OD2800000
Lactic acid
Only selected registry of toxic effects of chemical substances (RTECS) data is presented
here. See actual entry in RTECS for complete information on lactic acid and glycerol.
POpuationsiMSMHRC MSDS Page 3

kcgertcsi� - HR( MSM
Section 6 - Health Hazard Data
Handling: Avoid continued contact ►sith skin. Avoid contact with eyes.
In any case of any exposure which elicits a response, a physician should tr consulted
immediately.
First Aid Procedures
Remo■•e to fresh air. If not breathing give artificial respiration.
Inhalation: In case of labored breathing give oxygen. Call a physician.
No effects expected. Do not give anything to an unconscious
Ingestion: person. Call a physician immediately.
Flush with plenty of water. Contaminated clothing ma) be
Skin Contact: washed or dn' cleaned normally.
NVash ryes with plenty of Hater for at least 15 minutes lifting
I:ye contact: both upper and lower lids. Call a physician.
Section 7 - Reactivit-• Data
Conditions to Avoid: Strom, oxidizing agents, bases and acids
Hazardous
None known
Poh-merezation:
Further Information: Hydrolyses in Hater to form Lactic Acid and Glycerol.
Section 8 - Spill, Leak or Accident Procedures
After Spillage or Neutralization is not required. This material may be burned in a
Leakage: chemical incinerator equipped with an afterburner and scrubber.
La►►s and regulations for disposal ►an• widely by locality.
Observe all applicable regulations and laws. This material, ma}
Disposal: be disposed of in solid waste. Material is readily degradable and
hydrolyses in several hours.
No requirement for a reportable quantity (CERCLA) of a spill is known.
J:,Operations'MMSIHRC MSDS raer 4

Regencs)s - HRC MSDS
Section 9 - Special Protection or Handling
Should be stored in plastic lined steel, plastic, glass, aluminum, stainless steel, or reinforced
fiberglass containers.
Protective Gloves: Vinyl or Rubber
Eyes:
Splash Goggles or Fuli Face Shield
Area should have approved means of a,ashing eyes.
Ventilation: General exhaust.
Storage: Store in cool, dry, ventilated area. Protect from incompatible
materials.
Section 10 - Other Information
This material Rill degrade in the environment by hydrolysis to lactic acid and glyeeroL
Materials containing reactive chemicals should be used only by personnel with appropriate
chemical training.
The information contained in this document is the best available to the supplier as of the
time of writing. Some possible hazards have been determined by analogy to similar classes
of material. No separate tests have been performed on the toxicity of this material. The
items in this document are subject to change and clarification as more information becomes
available.
JA0PcrationslMSDS\HRC MSDS Page 5

Response to Letter from U1C Program dated February 15, 24106
Revised Mav 2007
Bullet No. 1: Results from several wells indicate aqueous concentrations of 1% of the solubility
limit of TCE in water. These high concentrations indicate the possibility of
DNAPL at the site. What testing has been done to document for the presence or
absence of DNAPL: on site, especially in the areas proposed for additional
injections.
Response No. 1: EC5 collects groundwater samples from the bottom of the monitoringlobservation
wells using a bailerlperistaltic pumplGrundfost pump (depending on the depth of
the well) in order visually inspect for potential DNAPL and to get the most
representative sample of the surrounding groundwater aquifer. During recent
groundwater monitoring events (March 2006, October 2006, and January 2007),
DNAPL was not ►isually observed in the Mailer or purge water. While this does
not prase that DNAPL does not exist at the site, further investigation for DNAPL
would not be feasible or practical at the point of implementing the Remedial
Action Plan.
In lieu of additional DNAPL assessment, the injected substrate that makes up
HRCO and DNAPL, if any, sorbs to the aquifer matrix in the treatment area
causing a reduction in DNAPL mobility. While the sorption of the HRC& is
temporary, the DNAPL is then consumed by the microorganisms as the ferments
and as the HRC* produces lactic acid. Because the movement of this particle is
restricted by its sorption onto the aquifer matrix, the water quality will eventually
improve in the treatment area and remain unchanged outside the treatment area.
Bullet No. 2: Given that enhanced bioremediation such as that proposed is generally
contraindicated in suspected areas of DNAPL or at very high concentration of
chlorinated solvents, additional injection of carbon substrates may cause further
degradation of groundwater quality at the site. Rule 15A NCAC 2C
.0213{a)(2XA) requires that substances used for in situ remediation not be
injected at appoint where their injection would further degrade the existing
quality of groundwater. Furthermore, additional injections, if unsuccessful, may
complicate future efforts to remediate groundwater at this site. Please explain
how you will achieve compliance with 15A NCAC 2C (a)(2XA) and how the
remaining organic substrates and their by-products will be addressed if they are
not removed by effective reductive dechlorination.
Response to
Bullet No. 2: The monitoring wells and existing and newly installed observation wells will he
sampled for eight consecutive quarters so that the progress of the remedialion
technology can be evaluated. The monitoring wells and the observation wells will
he monitored for natural attenuation parameters (i.e., alkalinity, carbon dioxide,
dissolved and ferrous iron, manganese, chloride, nitrate, sulfate, sulfide, and total
organic carbon) and geochemical parameters (dissolved oxygen, conductivity,
reductionloxidatian porential, pH, and turhiditv).
Regenesis has recommended that each of the observation wells also be anahzed
for metabolic acids (i.e., acetic acid, hutvric acid, lactic acid, proprionic acid.
and Pyruvic acid) and light hvdrocarhonx (methane, ethane, and ethane). When

Response to Letter from U1C Program dated F ehruar► 15, 2006
Re►7sed May 2007
the acids and light hydrocarbons are present in the groundwater, reducing
conditions exist. the HRC is slowly releasing the lactic acid used as the 'food
and chlorinated compounds are being dechlorinated.
Regular quarterly monitoring after injection Kill identify problems in the HRC(§
remediation cell. If the degradation of the chlorinated compounds is incomplete,
the reaction may stall at the production of cis-1,2-dichloroethane (cis-1,2-DCA).
This generally indicates the lack of a .flourishing Dehalococcoides sp. (DHQ
microorganism population. In this case the DHC microorganism can be injected
to augment and allow the reductive dechlorination reaction to continue.
Dverwhelming the system with ' food " will allow the reaction to quickly convert
to methanogenisis conditions and a spike in the methane concentrations will be
observed in the monitoring data. Because HRC is designed to release slowly in
the remediation cell, methoangenisis rarely occurs but stays in sulfate reducing
conditions in the remediation cell. If methanogenisis conditions do occur, it will
generally decrease the pH of the cell. A buffer solution will then be added to the
system to lower the pH and convert the system back to sulfate reducing
conditions. According to Regensis personnel, this situation rarely, if at all, has
occurred in over 600 world wide applications.
Bullet No3: Results submitted to date indicate the occurrence of anaerobic conditions in some
wells, yet indicate only limited reductive dechlorination was observed. Please
submit more recent results, including natural attenuation parameters, to document
the extent to which anaerobic respiration had caused reductive dechlorination and
consumption of the organic substrate.
Response to
Bullet No. 3: Three additional groundwater monitoring events were conducted in 2006 (Tables
2 and 3 in the injection permit application). When comparing the results of
analyses from 2003 and 2006, there are significant changes in the groundwater
chemistry, immediately following the pilot study injection of HRC! in the
boundary wells. Charts depicting concentrations over time have been prepared to
highlight these trends over time. The chlorinated hydrocarbons, PCE and TCE
have generally decreased over time. Total organic carbon (TOC) increased
significantly in boundary observation wells immediately following the HRC9
injection. Dissolved oxygen also decreased immediately following the injection.
The reductionloxidation (redox) potential appears to decrease in four of the eight
observations wells immediately following HRC® injection. The redox potential
appeared to increase from baseline conditions. The reason for the increase is
unclear, based on the TOC and DO results, reducing conditions appear to be
present in the vicinity of the pilot study. Furthermore, it is ECS' opinion that the
pilot study cell was a small treatment area xvithin a very large plume and with
hull of the dosage rate applied; it is likely that the treatment cell was
overwhelmed bt° chlorinated solvents entering the cell _from the source area.
Because the source it -ill be treated concurrendv, the amount of neN chlorinated

Response to Letter from UIC Program dated Februsr% 15. 2006
Revised Ma► 2007
compounds in the HRC remediation cell will he reduced, thus enhancing the
degradation of the chlorinated compounds at the boundary.
It should be noted that 11U from the last twe sampling events uVre measured in
Saturation rather than milligrams per kilogram lmglk-g). Table 3 hers been
corrected to reflect this modification.
Concerns regarding the use of EDS in the bedrock aquifer will he addressed in a
separate permit application.
Bullet No. 4: What injection rates, volumes, and f-equencies will be used for the proposed
injection operation, and how do these parameters compare with those used for the
pilot test? Please demonstrate how the proposal injection rates, volumes, and
frequencies were revised from the pilot study such that minimal energy
(hydrogen) will be diverted toward methanogenesis and that this energy source
will be released slowly enough to promote complete dechlorination of the target
chlorinated compounds.
Response to
Bullet No. 4 : The HRC was injected at an approximate rate of 15.5 pounds per foot Obslft) in
the intermediate wells and 7 lbslfoot in the bedrock wells during the pilot study.
These rates appear to be approximately half of the manufacturer's suggested rate
of 25 lbsf (per phase) in the intermediate wells and 12 lbslfoot in the bedrock
wells. The suggested manufacturer's dose rate is based on the oxygen and sulfate
demand, the competing electron acceptors, and the concentrations of the
contaminants in groundwater at the PFG site. While the lithology at the site is
taken into account, the aforementioned factors are used in the mass balance
calculation of the dose rate (See the attached mass balance calculations for
HRC}.
During the pilot study, HRC was injected through packers, which isolated hay -of
the screen of each well at 15-foot and 25 foot intervals in the intermediate and
bedrock injection wells, respectively. With the exception of injection wells IW-3
and IW-6, the intermediate injection '",ells required approximately 15 to 20
minutes per 15 foor interval. The bedrock injection wells required approximately
30 minutes to an hour per 25 foot interval. For this reason, the rates, the injection
rate in the intermediate wells will be increased to approximately 20 to 25 lbs f
but likely remain 7 lbs l in the bedrock wells. During the pilot study, half the
chosen HRCCV dose was injected into wells I H =3 (intermediate) and 1 W-6
(bedrock) most likely due to the tightness of the formation andlor the fractures in
this location. In this case, a packer will be used to isolate 5- to 10 foot .screened
intervals to ensure that the most amount of HRC9 is injected as possible. Since a
lower dose rate will likely be used, a potential third application may be required
in the slom, accepting wells.

Response to better from MC Program dated Februar% 15, 2006
Revised Ma► 2007
In addition, the pilot study injection wells IW-1 and 1W--4 are located
approximately 30 feet from injection u ells IW-2 and IW-5 and injection %Vlls IW-
2 and IW-5 are located approximately 60 feet from injection wells IW-3 and IW-6.
Based on the results of the HRC pilot study, the proposed injection wells in the
source and the boundary areas will be drilled approximately 20 feet apart in the
vicinity of the highest concentrations within the plume. The distance will
generally increase to approximately 30 feet apart in the lower concentrations an
the outer edges of the plume.
Based on the decrease of DO and the increase of TOC, the pilot study indicated
reducing conditions immediately following HRCV injection. It is ECS: opinion
that the aquifer will quickly convert to reducing conditions when the entire
treatment area is in contact with the injectants, thus beginning the breakdown of
chlorinated solvents more effectively.

Response to letter from LTC Program dated June 28, 2007
In a telephone con►vrsadon between Ms. Carin 8romm of ECS and Mr. Peter Pouo on August 1,
2007.it was agreed that items 1, 3, 4, 5, b, and 7 are related to the potential use of EUS in the source
area. All questions regarding the source area mill be addressed in a separate injection permit
application.
Question No. 1: Please provide an original signature page for this application (Note: each
application requires a new signature page. The April 2, 2007 signature page is not
adequate).
Response No. 1: .4 new original signature page will be provided with this application.
Question No. 2: The hydraulic conductivity, transmissivity, and specific yield of the aquifer to be
used for injection including a description of the test(s) used to determine these
parameters as required on page 5 section A.(3) of the permit application.
Response No. 2: The hydraulic conductivity, transmissivity, and specific yield of the aquifer was
appropriated from a 72-hour pump test completed in the intermediate aquifer at
the Former Burlington Industries site, located at 300 East Meado-wview Road
which is adjacent to and south of the site.
The 72-hour pump test was conducted by Aquaterra, Inc. as part of the RAP
prepared for the site. The pump test was conducted in a 6-inch extraction well
(Mil'-7e), which is constructed to a depth of approximately 70 feet bgs. A four -
inch stainless steel electrical submersible Grundfos pump was used to pump the
aquifer at approximately 18 to 20 gallons per minute. A shallow monitoring well
and a deep monitoring well -Kvre located adjacent to the extraction well. Several
existing monitoring wells were also observed during the test. The data collected
,from the extraction well was used to determine the hydraulic conductivit , and
transmissivity of the intermediate aquifer and the drawdown data in the
surrounding wells was used to calculate the hydraulic conductivites and
transmissivity in The intermediate nd bedrock aquifers underlying the site. The
hydraulic conductivities were calculated using the Theis Curve matching
Techniques (Fetter, 1980). The following average hydraulic conductivities are:
Intermediate - 295dlfi' or 39.44 feetlday
Bedrock - 95 gpolfr or 12. 7 feetlday
The following average transmissivities far the intermediate and bedrock area
Intermediate 5,377 gpolfoor
Bedrock 2292gsdffoot
According the USGS, the specific yield is the often same but can be less than the
effective porosity. For this reason the effective porosity in the intermediate
aquifer is estimated to be approximatey, 30•1a The effective porosity in the
bedrock well will be estimated at 0.05%

Response to letter from U1C Program dated ,tune 28, 2007
(question No. 7: Explain why half the manufacturers recommended dose of injection was applied
during the pilot test. Please explain why you are proposing half of the
manufacturers recommended dose of HRC9) for the full-scale application.
Response No. 7: It is unclear why ha jof the manufacturers recommend dose rate was used during
the pilot study. The personnel involved in this project at ECS PFG, and the 1HSB
REC program are no longer employed with these companies or agencies.
Currently, the manufacturer's dose rate for the intermediate zone is 50 lbslfoot.
Because the manufacturer considers this dose rate to too high to deliver in one
application, the1, recommended deliver), of the full 5011bs/foot in two 25 lbslfoot
phases, approximately six months apart. H'hile two phases are planned for the
majority of the intermediate wells, existing injection well IW-3, which is known
from the pilot study to be slow accepting, may require a third dose to deliver the
full 50 lbslfoot that is recommended. Similarly, injection IW-6 located in the
bedrock may require a second dose. It is possible that a small amount of the
proposed injection wells may be slow accepting due the specific lithology of that
well location. In this instance, the dose rate will be reduced and the HRC Kill be
delivered in phases. During the pilot study, the remaining two intermediate
injection wells accepted the HRC well at a dose rate of 15.5 lbslfoot and will
likely accept the higher dose rate of 25lbs1foot in the two separate phases.

JOB NAME,: PRECISION FABRICS GROUP, INC JOB NUM13ER G--6175B
WELL NUMBER: IW-8
LOCATION- GREENSBORO, NORTH CAROLINA
CONCRETE -
LOCKABLE CAP.
GROUT-
6-INCH DIA. BOREHOLE--
2-INCH DIA. SCH. 80 PVC RISER
6.25-INCH DIA. .188 GALVANIZED RISER
95.0 FT.
c_
2-INCH DIA. SCH. 80 PVC SCREEN
(.04-INCH SLOTS) a
BENTONITE SEAL 9
(93-98 FT.)
SAND PACK -
BOTTOM CAP -
COVER ASSEMBLY WITH
REMOVABLE STEEL COVER
DEPTH TO
BASE OF
GROUT
93.0 FT.
if
NOTE. ALL PVC JOINTS ARE
FLUSH THREADE❑ CSLLP
DEPTH TO
TOP OF
SAND
98.0 FT.
TOTAL
DEPTH
OF WELL
150.0 FT.
SCREENED INTERVAL
100.0 -150.0 FT.
TOTAL
DEPTH OF
BOREHOLE
150.0 FT,
PROPOSED TYPE III
MONITORING INJECTION
WELL CONSTRUCTION
DIAGRAM

JOB NAME: PRECISION FABRICS GROUP, INC. JOB NUMBER: G-6175B
WELL NUMBER: OW-3 & OW-3A
LOCATION: GREENSBORO, NORTH CAROLINA
OW-3A OW-3
COVER ASSEMBLY WITH
REMOVABLE STEEL COVER
GROUND SURFACE ;: •,..ti
CONCRETE
LOCKABLE CAP
GROUT
DEP TO TOTAL
B—INCH D1A- BOREHOLE BASE OF DEPTH OF
GROUT BOREHOLE
77.0 FT. 150.0 FT-
2—INCH DIA. SCH. 40 PVC RISER & 11 .0 FT.
DEPTH TO
TOP OF
SAND
°❑ o0
81.0 & 118.0 FT.
,. TOTAL
— BENTONITE SEAL DEPTH
°° ° ` - — OF WELL
{77-0-81 A FT. °a o t 103.0 & 150.0 FT.
(113.0-118.0 FT-)
SAND PACK
SCREENED
2—INCH DIA. SCH. 40 PVC SCREEN — INTERVAL
(01—INCH SLATS} 83-0-103.0 FT.
120.0-150.0 FT.
BOTTOM CAP
PROPOSED NESTED
NOTE: ALL PVC JOINTS ARE OBSERVATION TYPE II
FLUSH THREADED giLP WELL DIAGRAM
C�ARDLII�TAk-

JOB NAME: PRECISION FABRICS GROUP. INC. JOB NUMBER: G-6175B
WELL NUMBER: OW-2 & OW — 2A
LOCATION: GREENSBORO, NORTH CAROLINA
OW-2 OW—ZA
r COVER ASSEMBLY WITH
REMOVABLE STEEL COVER
GROUND SURFACE
\�r\fir\l r�l lr�l r\1�\��\
CONCRETE "• ''
LOCKABLE CAP
GROUT
oo DEPTH TO TOTAL
6—INCH DIA. BOREHOLE BASE OF DEPTH OF
GROUT 26BOREHOLE
.0 FT, 65.0 F"T-
2—INCH DIA. SCH. 40 PVC
HENTONITE SEAL
(28.0-33.0 FT.)
(58.0--63.0 FT.)
SAND PACX
2—INCH DIA. SCH. 40 PVC SCREEN
(01—INCH SLOTS)
BOTTOM
NOTE: ALL PVC JOINTS ARE
FLUSH THREADED
giLP
C'AROLINAS
& 58Ll FT. I
DEPTH TO
TOP OF
SAND
33.0 & 63.0 FT.
TOTAL
DEPTH
OF WELL
35.0 & 65.0 FT.
SCREENED
INTERVAL
25.0— 35.0 FT.
45.0-65.0 FT.
PROPOSED NESTED
OBSERVATION TYPE II
WELL DIAGRAM

. too 1 1
ATTACHMENT H

1'125DG Scale �:
-- T - h -- Approximate Property Boundary `
SOURCE: GREENSBORO, NC 7.5 MINUTE TOPOGRAPHIC QUADRANGLE, 2002
ERM, NC Inc
ERM
TOPOGRAPHIC SITE LOCATION MAP
301 E MEADOWVIEW ROAD
GREENSBORO, NORTH CAROLINA
Figure
1A

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SOURCE: Microsoft Corporation (circa 2009)
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SITE LOCATION MAP Figure
ERM, NC PC 301 E MEADOWVIEW ROAD 1
ERINI GREENSBORO, NORTH CAROLINA

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POTENTIAL SOURCE AREAS 1 cum
REIEM4AL ACTION PLAN
ERNE NC, PC PRECISION FABRICS GROUP 2B
GREENSBORO. NORTH CAROLINA

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LEGEND
BEDROCK
QUARTZ (FRACTURED) 1
FILACTUREZONE
SAPROLCI'k
HIGH TRANSMI.SSIVITY P%VR 52,3
TCE CONCENTRATION
ZONE(FRAC11TRED)
(NS/L)
PARTIALLY
v
WATER LEVEL NS
NOTSANIPLFD
%i'EATHERE D ROCK
=
IBB Boo 900 7000 7769
ERM NC, PC
FR%l
A'
ED1,000
µg/ L TCE
CONCENTRATION CONTOUR
®10,000
jig/ L TCE
CONCENTRATION CONTOUR
.
50,000 ugl L TCE
CONCENTRATION CONTOUR
CROSS SECTION A - A'
PRECISION FABRICS GROUP
GREENBORO, NORTH CAROLINA

In m 30 4w 5M m 7M
] 00 pg/ L TCE CONCENTRATION
CONTOUR
. SM Rg/ L TCE CONCENTRATION
CONTOUR
LEGEND
BEDROCK (QUARTZ (FRACTURED) —/#— FRACTUREZONE
SAPRDLITE HIGH TRANSML%tVM PWR 52.3 TY:ECC�NCEN7RATTON
ZONE{FRACTURED� (µg/L)
PARTIALLY w WATER LEVEL NS NOTSAMPLED �} ERM NC, Inc.
WEATHERED ROCK — LR M
CROSS SECTION B-B'
PRECISION FABRICS GROUP
GREENBORO, NORTH CAROLINA
13

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ne (oo m ry r+y
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see HS -
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1.000 u81 L TCE
cse CONCFNTRAT[ON CONTOUR
+p 2w 3" AN SN NO vw aM sM 5,OW µg/ L TCE 1O
CONCENTRATION CONTOUR
LEGEND Q s�rc w
Y(� 6
F7 BEDRCICY (QUARTZ (FRACTURED) FRAC `URE ZONE
HIGH TRANSMLS'SIV[TY PWR a �a irXi
E7 SAPRO�LiTF 52.3 pg/ CO�NCF �7Tt;117O�
ZntiE(rTWCTL�REii) (µ81L) CROSS SECTION Cam'
11AR114I.LY T WATTiR LFVFL NS M'rl-SA-Ml'LE17 �) ERM NC, Inc. PRECISION FABRICS GROUP
WEATHERED ROCK — I R N 1 GREENBORO, NORTH CAROLINA

F(IIZNII It
5aprolite- Unsaturated Zone - Primarily silty sands and clays. No substantial
residual contaminant mass has been indentlfied in the unsaturated zone.
Partially Weathered Rock (PWR)- Encountered at 20' BGS in unsaturated
zone - Very dense- low hydraulic conductivity
Fractured Quartz Zone- Embedded within the PWR at an approx. depth of 40'
BGS. Composed of clean, angular, quartz pebbles. Bulk of contaminant mass
present in this zone. Generally less than 5' thick.
Transition Zone- Between PWR and competent bedrock. Highly fractured,
relatively high transmissivity zone. Allows for rapid contaminant transport.
Competent Bedrock- Groundwater flow entirely through fractures. Aquifer testing
indicates much lower hydraulic conductivity than transition zone. Some
contaminant transport through diffusion.
ERM NC, Inc
SITE CONCEPTUAL MODEL
PRECISION FABRICS GROUP
GREENSBORO, NORTH CAROLINA
SITE CONCEPTUAL MODEL -
PLAN VIEW
FaulVFracture Zone - Fault or
fracture providing vertical
flow•path to transition zone
Contaminant Plume - Primary
contaminant is TCE. Plume is
longer than wide.
Primary Source Area - (2) ZODO-
gallian TCE ASTs formerly in use at
the facility (1964 to early 1980s)
Groundwater Flow Direction -
Groundwater flow at the site is
primarily to the south
I=igu re

i
NW-15S
(NS)
J '
TmmPr Pyrkrrle -
A
{36�)
5
(NS l
0.76)
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11'iL'.7dplyylcK' Htl1M} � �I I
LEGEND
,N-
E XISTING SHALLOW MON170RING WELL LOCATION I
(30.100) TCE CONCE N TRA 11ON IN ugn IJULY niII
f CE ISOCONCENf RAC ION LINE - -
.- an
T!t]CHLOROE{ HENE IN THE SHAU.OW AQUIFER
ERM NC, Inc PREMION FAMCS GROUP
301 EAST MEAWWVMW DUn
R M GREENS SMG. NORTH CAROUNA

-171
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ag r'L
(X440) '
f
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271
% I3•a00}
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rorlf +a1c
W"Ck)wvicw Rnsd
{716}
LEGEND N
rMSTING TRANSITION ZONE MONITORING WELL LOCATION
(30.tOO) TCE CONCENTRATION IN uyL (DULY nIII
TCE ISOCONCEN TRA T ION LINE
r� TRICHLORCIETHENE I N THE INTERMEDIATE AQUBMR
h EIZM NC, Incrr MSION FABRICS GROUP g
301 EAST M -AWN" ew DRIVE
Eli M GRffi4sBORp, NORTH CAROIINA

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4nd r�ilc� p
are-�ry�
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-- {N57ziD Mrv-zoo I
Meadow��cK Road �—_�L 0
LEGEND
N
E xi STING DEEP MONITORING WELL LOCATION I
(ao,Ino) ICE CONCENTRAIiON IN VL (Julr a0+1)
TCE ISOCONCENINAiION LINE
TRICHLOROFMENE IN THE BEEP AQUIM
PREaSIOERM NC, Inc MI FAST E�WW FABRICS
OUP
10
ERM ORMNSBORO, NORTH CAROURA

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LEGEND I
f157,751 GROUNDWATER ELEVATION IN FEE I IM1SL
NOTE: GROUNDWATER ELEVATION DATA COlLECTEO BETWEEN JULV $g AND 75. 2011
c� POTEN ROMEMC SURFACE MAP - SHAUOW AQUff;ER
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1752.4) GROUNDWATER ELEVATION IN FEET MSL
NOTE: GROUNDWATER ELEVATION DATA COLLECTED BETWEEN JULY 13 AND 13. 2011
POTENIIOME:TRIC SURFACE MAP - OnM MEDIAT!~ AQUEZER
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LEGEND
EM.25) GROUNDWATER ELEVAVON IN PEP M51 SCA�c
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LEGEND
PROPOSED INJECTION WELI LOQATION ` / X%7
EXISTING SFsALLOW MONI IORING WELL LOCATIONTCE ISOCONCENTRAT{ON LINEESTIMATED RADIUS OF INFLUENCEE%IS71NG PILOT TEST WELL TO BE USER AS RNP PINJECTION WELL DURING FULL SCALE AL IGAl IONPROPOSER MQNITORING WELL LOCATION
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INJECTION EQUIPMENT SCHEMATIC
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flowpath to transition zone
Partially Weathered Rock (PWR)- Encountered at 20' BGS in unsaturated
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zone - Very dense- low hydraulic conductivity contaminant is TCE. Plume is
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BGS. Composed of clean, angular, quartz pebbles. Bulk of contaminant mass Primary Source Area - (2) 2,000-
present in this zone. Generally less than 5' thick. gallon TCE ASTs Formerly in use at
Transition Zone- Between PWR and competent bedrock. Highly fractured, the facility (1964 to early 1980s)
relatively high transmissivity zone. Allows for rapid contaminant transport.
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ERM NC, Inc
SITE CONCEPTUAL MODEL I Figure
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LEGEND _ l
0 PILOT TEST INJECTION WELL
PILOT TEST OBSERVATION WELL i
n
(B EXISTING MONITORING WELL SCALE IN EEzr
FlGU RE
PILOT Tarr AREA LAYOUT
EItM NC, Inc 301 B hffiAnOwvfw DROM 4
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LEGEND
a PILOT TEST INJECTION WELL
PILOT TEST OBSERVATION WELL
[� EXISTING MONITORING WELL
(100/52) BASELINE TCE CONCENTRATION (MARCH 2O10)1 MARCH 2O11 TCE
MICROGRAMS PER LITER
NS NOT SAMPLED
IN
SCALc '
FIGURE
TCE CONCENTRATION IN = KU)IT TEST AREA
SRM NC. IxtC 30I E MEADOVVV]EW DRIVE 5
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a 60,000
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w 40,000
U
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20,000
10,000
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3/1/2010
Figure S - Bioremediation Pilot Test Data
t-OB-1 tOB-2 —Ar-OB-3 fOB-4 ■ Injection
4/20/2010 619/2010 7/29/2010 9/17/2010 11/6/2010 12/26/2010 2/14/2011
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LOCATION y '
EMSTINO SRLLLOW MONITORING WELL LOCATION t
SOURCE AREA CHARAC TaWATION WEU [.CxArnON MAP
PRECLSION FABRICS GROW
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(7'.12 M GROUNDWATER ELEVATION IN FEET MSL
s[x[ w F-t
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LEGEND (753.08)
(752.25) GROUNDWATER ELEVATION IN FEET NSL _ ir.�E v =E_«
NOTE GROUNDWATER ELEVATION DATA C.OLLECrM BETWEEN JULY 13 AM 19. 2011
PQTENMOMEMC SURFACE MAP - UnU MEDIATE AQUUq R
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LEGEND
V32.25) GROUNOWATER ELEVATM IN FEET LIST SCALE IN Fur
NOTE: GROUN(MATER ELEVArK)N DATA COLLECTED 9ETwEEN 3uLr 13 AND 18, 2011 0 70 W an
POTENT'IOMEMC SURFACE MAP - DEEP AQUWM
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LEGEND
Fiasnmo sKALLow momToFtimr. WELL LocAna44
(30, 1 OD) TcE comciENTRATom IN uA (jLLY 2a 11)
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ti
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(30.I0D) TCE CONCENTRATION IN LP- {JLILY 7011)
TCE ISODONCENTRATM LINE
MUCHWPOMUENE IN nffl M ER AEDiATE AQUm3R
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ti
® ewsnkc DFEp YowroRwG wELL LocnnoN
(30.100) TCE CONCENTRAnON K ug& puLY 2o1S}
:.hi •ti 'E'T
TCE LSOCONCENMA71ON UNE
20 w eo
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LEGEND
PROPOSED INJECTIoN WELL LOCATION
ExsTm SHALLOW moNITORING WELL LOGinON
—. .� TCE 15000NCENTRATION UNE g +j
i \ 7S
! I EST"uRAYEDRA01V50FIFFLUET+CE � �� ./`
0 EwSTING PILOT TEST WELL TO BE usED AS AN
INJECTION WELL DURING FULL -SCALE RPPLFGTION 9
PROPOSED MONITORNG WELL LOCATION
PROPOSED NEW INJEMON WELL LOCAT[ON MAP
4 ERM NC, Inc MECUION FABRICS GPJXT 14
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LOCATION MAP
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ATTACHMENT H
FIGURES

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LEGEND
E)U5r NG TRAINSMON ZONE MONITORING WELL LOCATIGN
(A100) TCE CONCENTRATION IN k9k [LILY 2011
ScAu ,a F9T
- — TCE ISOCONCENTRATGN UNE
0 20 {C as
L TRICHLOROMIELIE IN TIM LVTERMGDIAT@ AQUU:ER Flxar
ERM NC ISC PRECISION FABRICS GROUP h
r 301 BAST MEADOWYIBW DRIVE 7
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(XIOQ) TCE CONCENTRAT40N IN yqk IJULY Zp111
SGIi >w :EST
--- TCE ISOCONCENTRAn ON LINE
u zo 4o ea
TR[aMOROEMENE IN THE DEEP AQUUER
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301 PASTMPAOOWVMY DRIvH
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LEGEND I
f752231 GROUNDWATER ELEVATION IN FEET hM
NOTE: GROUNDWATER ELEVATION DATA COLLECTED BETWEEN .WLY 1] ANO 13. 2011
POTEN-ROME [RIC SURFACE M" - SHALLOW AQLnFER
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LEGEND
[752.25] GROUNDWATER ELEVATION IN FEET MSL
NOTE: GROUNDWATER ELEVATION DATA COLLECTED 9ETWEEN 3ULY 13 AND 18, 2011
POT=OMETRIC SURFACE MAP - NTERAeD1A•TE AQUWER
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LEGEND
v PROPOSED INJECTION WELL LOCATION _ 1100
® E70 STING SWALLOW MONITORING WELL LOOATIGN
TCE ISOCONCENTRATION UNE
� A ESTIhAATEO RADIUS OF INRUENCE 1 � -
O EXIS ING PILOT TEST WELL TO BE USED AS AN
INJECTION WELL DURING FULL SCALE APPLICATION
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PROPOSED NEW INJECTION WELL LOCATION MAP
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PUMP
TOTALIZER y
TRAItER MOUNTED
HIGH PRESSURE
FLEXIBLE LINE
E
fE VALVE
UNION
INJECTION WEI1.
INJECTION EQUIPMENT SCHEMATIC FIGURE
, ERM NC, Inc IN -SITU BIOREMEDIATION TREATMENT SYSTEM 15
ERM PRECISION FABRICS GROUP (PFG) FACILITY
GREENSBORO, NORTH CAROLINA

Expandable locking cap with lock
Concrete apron
(.3 feet square X 4 inches deep)
Top of Casing (TOC)
Elevation: feet
M
2'
Depth to top of bentonite: 31 feet
Depth to first slot of screen: 35 feet
Borehole diameter 6 1A inches
Manhole with bolt down lid
Ground Surface
Elevation: feet
reit1011tlM
Type
Expansive cement grout
(95% Type I Portland
cement, 5% sodium
bentonite powdeO
Number of Bags
Unknown
Weight of Bags
100 Ibs
RISER PTPF
Type
PVC
Diameter
2 inch
Length
35 ft
n-ANEW"
Type
Hydrated sodium bentonite
Size
Medium
Number of Bags
l
Weight of Bags
50 Ibs
TyRe
PVC
Screen Slot
0.010inch
Diameter
2 inch
Length
10 feet
2$ feet below FILTER SAND
1'- TOC Type Silica
Size Medium
Number of Ba s 6 _
Weight of Bags 50 lbs
Depth to last slot off screen: 45 feet
Boring depth
`Not to scale 45 feet
Well construction measurements are rounded to nearest 0. l font
All measurements are From below land surface [BLS]
Elevations are from a surveyed datum
Groundwater gauging date: 2/2 1l21010
r%
Notes
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
Driller Name
Terry Watkins
Geologist Name
Robert Laumann
Drilling Method
Air Rotary
Development Method
Grundfos Pump
Drilling StardEnd
Date
2010/2/20
Well Construction
Start/End Date
2010/2/20
KI 4ppr• ERM PROJECT WHSI ,SITE It FIGURE 16
CA B CA B 107830
Dwg Dare: Re>rfsion
0 Precision Fabrics Group Dbservation
Greensboro, North Carolina Well�� � Construction
Detail
ERM NC, INC
1130 Sites Court
Raleigh, North Carolina
PH: (919) 2334501
FAX: [phone]

Expandable locking cap with lock
Concrete apron
(3 feet square X 4 inches deep) Manhole with bolt down lid
Top of Casing (TOC)
Elevation: feet
I ?'
Depth to top of bentonite. 31 feet
Depth to first slot of screen: 35 feet
Borehole diameter 6 1/8 inches
27 feet below
❑ TOC
Depth to last slot off screen: 45 feet
Baring depth
*Not to scale 45 feet
Well construction measurements are rounded to nearest 0.1 foot
All measurements are from below land surface (BLS)
Elevations are from a surveyed datum
Groundwater gauging date: 2/21/2010
Ground Surface
Elevation: feet
GROUT
Type
Expansive cement grout
(95% Type I Portland
cement, 5% sodium
bentonitepowder)
Number of Bags
Unknown
Weight of Bags
100 lbs
RtSFR PTPF
Type
PVC
Diameter
2 inch
Length
35 ft
WFi i_ SFAT
Type
Hydrated sodium bentonite
Size
Medium
Number of Bags
1
Weight of Bags
50 Ibs
SLOTTED SCREEN
Type
PVC
Screen Slot
0.010 inch
Diameter
2 inch
Length
10 feet
FILTER SAND
Type
Silica
Size
Medium
Number of Ba s
6
Wei ht 01'Bags
50lbs
Notes
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
Driller Name
Terry Watkins
Geologist Name
Robert Laumann
Drilling Method
Air Rotary
Development Method
Grundfos Pump
Drilling Start/End
Date
2010/2/20
Well Constriction
StartlEnd Date
201W2120
Dwn: Appr= ERAI PROJECT #1HSI SITE # FIGURE 17
C4B CAB 107830
Dwg Date: Revision
9127110 0 Precision Fabrics Group Observation
OB—Greensboro, North Carolina Fr
ruction
Derail
ERM NC, INC
1130 Situs Court
Raleigh, North Carolina
PH: (919) 2334501
FAX: [phone]

Expandable locking cap with lock
Concrete apron
C 3 feet square X 4 inches deep} -- Manhole with bolt down lid
Top of Casing (TOC)
Elevation: feet
12'
to tot) of bentonite: 31 feet
Depth to first slot of screen: 35 feet
Borehole diameter 6 118 inches
28 feet below
TOC
Depth to last slot off screen: 45 feet
Boring depth
*Not to scale 45 feet
Well construction measurements are rounded to nearest 0.1 foot
All measurements are from below land surface (BLS)
Elevations are from a serve ed datum
Ground Surface
EIevation: feet
GROUT
Type
Expansive cement grout
(95% Type I Portland
cement, 5% sodium
bentonite pawder)
Number of Bags
Unknown
Weight of Bags
100 lbs
RTgFR PTPF.
Type
PVC
Diameter
2 inch
Length
35 ft
WFr T_ SFAT
Type
Hydrated sodium bentonite
Size
Medium
Number or Bags
I
Weigh L of Bags
50 lbs
SL(iTTFD SCRFF.N
Type
PVC
Screen Slot
0.010 inch
Diameter
2 inch
Length
14 feet
FTT TFR SAND
Type
Silica
Sire
Medium
Number of Bags
6
Weight of Bags
50 lbs
Notes
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
Driller Namc
Terry Watkins
Geologist Name
Robert Laumann
Drilling Method
Air Rotary
Development Method
Gntndfos Pump
Drilling Start/End
Date
201012120
Well Construction
Start/End Tate
201012120
.7
Groundwater gauging date: 2/2112010
Dw►r.
Appr:
ERAI PROJECT NIHSI.SITE #
FIGURE 18
NC INCCAA
C B
07830
r
1130 Situs Court
Dwg Date:
9 7/1 #
Re►-ision
a
Precision Fabrics Group
Greensboro, North Carolina
observation
well
Constructing
Raleigh, North Carolina
PH: (919) 2334501
FAY: 2334505
�g-7
(919)
Detail

Concrk
[3 feet
Boring depth
*Not to scale 45 feet
Well construction measurements are rounded to nearest 0, l foot
All measurements are from below land surface (BLS)
Elevations are From a surveyed datum
Groundwater gauging date: 2/21/2010
Dwn: Appr: ERAI PROJECT WHSI SITE #
CAB CAB 107830
Dwg Date: Revision
9127110 11 Precision Fabrics Group
O $r3 Greensboro, North Carolina
Surface
n: Feet
grout
and
m
bentonite
Notes
Well Type
Observation WeII
Drilling Contractor
Geologic Exploration
Driller Name
Terry Watkins
Geologist Name
Robert f.aumann
Drilling Method
Air Rotary
Development iIiethod
Grundfos Pump
Drilling Start/End
Date
201.0/2120
Well Construction
Start/End Date
2010/2/20
FIGURE 19
ERM NC, INC
1130 Situs Court
Raleigh, North Carolina
Observation
Well
PH: [phone]
( "Instructiorr
Detail
FAX: [phone]

Concre
(3 feet
*Not to scale
Well construction measurements are rounded to nearest 0
All measurements are from below land surface (BLS)
Elevations are From a surveyed datum
Groundwater gauging date: 2/21/2010
Boring depth
45 feet
l foot
Surface
n: feei
grout
and
m
bentonite
Notes
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
Driller Name
Terry Watkins
Geologist dame
Robert Laumann
Drilling Method
Air Rotary
Development Wetbod
Grundfos Pump
1
Drilling Start/End
Date
201012120
Well Construction
Start/End Dale
201012120
Djvn
rlppr.
C 8
F. RM PROJECT #IHS1 SITE #
107830
FIGURE 20
E � INCC18
'
1130 Situs Court
Raleigh, North Carolina
PH: [phone]
Drvg Dale:
9127110
Revisiwi
0
Precision Fabrics Group
Greensboro, North Carolina
Observatiom
Weit
D
O D_4
Construction
FAX: [phone]
Detail

Depth to top of bentonite: 29 feet
Depth to top of send: 31 feet
Depth to first slot of screen: 35 feet
Borehole diameter. 6'/."
Depth to last slot of screen: 45 feet
Own: Appr:
AOD I 8H
Dwg Date: Revision
7/11/2011 0
Boring depth: 45 feet
ERM PROJECTft
0138869
Precision Fabrics Group
Greensboro, North Carolina
GROUT:
Type: Expansive cement grout (95%
Type I Portland cement, 5%
sodiurn ber+tonite powder)
RISER PIPE:
Type- PVC
Diart-Aler 2 t h ID
Lengh 3S h
WELL SEAL:
Type, Hydrated sodium t�entorite
Size- htediurn
SLOTTED SCREEN
Type PVC
Size: 4.010
D-arre:e- 2 inch
Leno:h- loft
FlLTE1 SAND
Type: Spica Sand
Size; 20-d0
Wel i Type:
Drtllirg Contfactor:
Dnller Name-
Geo"isls Name
Drillirg MwtxA,
Development Method:
DrAirg Stagy End Date:
Well Construction Start
End date:
Minmoring Well
Geologic Explornor,.
Johnny Bur*
Ch"S Means
Par Rotary
Pumping
201 VV09.201 V7110
201 I;TM9-2011;7110
FIGURE 21
ERM NC, Inc
1130 Situs Court
Raleigh, North Carolina
Monitoring
PH: [phone]
Well
PAX: [phone]

Depth to top of bentonite: 29 feet
Depth to tap of sand: 31 feel
Depth to first slot of screen: 35 feet
Borehole diameter. 6'•�'
Depth to last slot of screen: 45 feet
❑wn:
Appr:
AOD
BH
Dwg Date:
7/11/2011
Revision
0
MW-35S
Boring depth. 45 feet
ERM PROJECT #
0138869
Precision Fabrics Group
Greensboro, North Carolina
GROUT:
Type- Expansive cement grout (95%
Type I Parttand cement. 5%
sodium bentonile powder)
RISER PIPE:
Type• PVC
Dian-7tFx: 2 inch 0
Lenq:h 35 f1
4YELL SEAL:
Tyne Hydraled sodium bemrx ke
Site: hirxiiurn
SLOTTED SCREEN
Type: PVC
Size: 0.010
Deamaler 2 inch
Leng:h 10 P.
FILTER SAND
Ty,,m: Silica sand
sire: 20-40
Vlell Type:
Drilling Con:raruor
Dnllw Name-
Geot Ism Name
❑nlliny hlettxxl:
Oeystopmem Method
Drilling Star• --End Date:
Well Corstaiclipr Star'
End Date:
Monitoring Well
Geokgfc Explorwior.
Johnny Burr
Chas Moans
Air Rotary
Pumping
20111M1 201117r i 0
2011 V09-201 V71 l 0
FIGURE 22 ERM NC, Inc
1130 Situs Court
Raleigh, North Carolina
Monitoring PH: (919) 2334501
Well FAX: [phone]

Depth to top of bentonite. 29 feet
to top of sand: 31 Feet
Depth to first slot of screen: 35 feet
Borehole diameter B'/,"
Depth to last slot of screen: 45 feet
❑wn: Appr:
AOD I BH
Dwg Date: 777sion
7/11/2011 0
M W-345
Boring depth: 45 feet
ERM PROJECT #
0138869
Precision Fabrics Group
Greensboro, North Carolina
GROUT.
Type Expansive cement grout (95%
Type I Portland cement. 5%
sodium bentomte pawd(-1
RISER PIPE:
Type- PVC
Diansew 2 inc)i ID
Length 35 h
WELL SEAL:
Type- Hydrated sac9tim ben:onile
Size. Medium
SLOTTED SCREEN
Type: PVC
Size: 0.010
D4ame?er 2Irch
Lengl.h' 10 f1
FILTER SAND
Typo: Silica Sand
Size' 20-40
Well Type:
Drilling Canvac[or:
Dnller Name'
Gaokxyisls Name.
Drilling hletlUd.
Development Method:
Drilling Start. -End Date.
Well OwslniGlion Start
End Date'
Nbnhoring Well
C.eo;cgic Exploration
Johnny Burr
Chris Adeans
Air Rotary
Fumping
201 VV09-201117E 10
201 1;7109.201 V7310
FIGURE 23 ERM NC, Inc
1130 Situs Court
Raleigh, North Carolina
Monitoring PH: [phone]
Well FAX: [phone]

Depth to tap of bentonite: 29 feet
Depth to top of sand-- 31 feet
Depth to first slot of screen. 35 feet
Borehole diameter- h '/:'
Depth to last slot of screen: 45 feet
Boring depth. 45 feet
GROUT-
Type: Expansive cement grout (95%
Type I Pordand cemenk. 5%
sodium beMonile powder)
RISER PIPE:
Type- PVC
Dwrrxf?rV 2inch ID
Lengh 3511
WELL SEAL:
Type: Hydrated sodium bewor lte
Size: Medium
SLOTTED SCREEN
Type: PVC
size: 0,010
Diameter 2 inch
Length 10 tt
FILTER SAND
Type; Silica Sand
Size: 20-40
Neil Type:
Dniting Cors;maor:
Dnliw Name:
Geologists Narnm
Dri5ing Mctfuxi-
Deveioprnent Method:
Drilling Start End Date:
Wall Corsin,ction Start
End Cale:
Monitoring Shell
Geologic Explora;ior
Jdnnny Burr
Chns Means
Air Rntary
Pumping
2011M'D9 201 1; 7110
2011iVM201 VV10
Dwn: Appr: ERM PROJECT # FIGURE 24 ERM NC, Inc
AOD BH 0138869 1130 5itus Court
Dwg Date: Revision Raleigh, North Carolina
7/11/2011 0 Precision Fabrics Group Monitoring PH: [phone]
MW-37S Greensboro, North Carolina Well FAX: [phone]

Expandable locking cap with lock
Concrete apron Manhole with bolt down lid
(3 feet square 3{ 4 inches deep}
Top of Casing (TOC)
Elevation; feet
31'
Depth to top of bentonite: 31 feet
Depth to first slot of screen: 35 feet
Borehole diameter 5 1/8 inches
Ground Surface
EIevation: feet
GROUT
Type Expansive cement grout
(95% Type l Portland
cement, 5% sodium
bentonitepowder)
Number of Bags
Unknown
Weight of Ba s
100 lbs
RISFR PIPE
Type
PVC
Diameter
2 inch
Length
35 R
WFt.i. SFAI.
Type
Hydrated sodium bentonite
Size
Medium
Number of Bags
1
Weight of Bags
50 Ibs
Si.0TTFr) SCRFFN
Type
PVC
Screen Slot
0.010 inch
Diameter
2 inch
Length
10 feet
28 feet below FILTER SAND
12' TOC Type Silica
j - Size Medium
ill Number of Ba s b
Wei1ThtofBags 50lbs
Depth to last slot off screen: 45 feet
Boring depth
*Not to scale 45 feet
Well construction measurements are rounded to nearest 0.1 foot
All measurements are from below land surface (BLS)
Elevations are from a surveyed datum
Groundwater gauging date: 2/21/2010
Dwn:
CA
.•i ppr:
CA 8
I
Divg Date:
Revision
Typical (IW-2)
ERN PROJECT #IHSI SITE #
Precision Fabrics Group
Greensboro, North Carolina
Notes
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
Driller Name
Terry Watkins
Geologist Name
Robert Laumann
Drilling Method
Air Rotary
Development Method
Grundfos Pump
Drilling Start/End
Date
201012I20 .
Well Construction
Start/End Date
201012l20
J
FIGURE 25
ERM NC, INC
1130 Situs Court
Raleigh, North Carolina
PH: [phone]
FAX: [phone]
Observation
Well
Construction
Detail

Expandable locking cap with lock
Concrete apron
(3 feet square X 4 inches deep) Manhole with bolt down lid
Ground Surface
Top of Casing (TOC) Elevation: fee[
Elevation: feet
12,
to ton of bentonite: 31 feet
Depth to first slot of screen: 35 feet
Borehole diameter 6 118 inches
28 feet below
SZ roc
Depth to last slot oft screen: 45 feet
Boring depth
*Not to scale 45 feet
Well construction measurements are rounded to nearest 0.1 foot
All measurements are from below land surface (BLS)
Elevations are from a surveyed datum
Groundwater gauging date: 2/21/2010
GROUT
Type
Expansive cement grout
(95% Type I Portland
cement, 5% sodium
bentonitepowder)
Number of Bags
Unknown
Weight of Bags
100 lbs
RiSFR PiPF
Type
PVC
Diameter
2 inch
Len th
35 ft
WELL SEAL
Type
Hydrated sodium bentonite
Size
Medium
Number of Bags
1
Weight of Bags
50 lbs
SLOTTED SCREFN
Type
PVC
Screen Slot
0.010 inch
Diameter
2 inch
Length
10 feet
FILTER SAND
Type
Silica
Size
Medium
Number of Ba s
6
Weight of Bags
50 lbs
Notes
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
Driller Name
Terry Watkins
Geologist Name
Robert Laumann
Drilling Method
Air Rotary
Development Method
Gmndfos Pump
Drilling Start/End
Date
201012120
Well Construction
StartlEnd Date
2010/2/20
Dwtr: Appr. ERM PROJECT #1HS1 SITE # FIGURE I
C•i8 CAB 107830
Dwg Date: Revising
9127110 0 Precision Fabrics Group Observation
�y Greensboro, North Carolina well
IW—G Construction
Detail
ERM NC, PC
1130 Situs Court
Raleigh, North Carolina
PH: [phone]
FAX: [phone]

Expandable locking cap with lock
Concrete apron
(3 feet square X 4 inches deep)
Top of Casing (TOC)
Elevation: feet
2'
Depth to top of bentonite: 31 feet
Depth to first slot of screen. 35 feet
Borehole diameter 5 1/8 inches
Manhole with bolt down lid
Ground Surface
/ Elevation: feet
GROTIT
Type
Expansive cement grout
(95% Type I Portland
cement, 5% sodium
bentonitepowder)
Number of Bags
Unknown
Weight of Bags
100 lbs
1r1I.M2,201a21
Type
PVC
Diameter
2 inch
1
Len th
35 fi
Type
Hydrated sodium bentonite
Size
Medium
Number of Bags
l
Weight of 13a s
50 lbs
SLOTTED SCREEN
TvDe
PVC
Screen Slot
0.010 inch
Diameter
2 inch
Length
10 feet
27 feet below FILTER SAND
i TOC Type Silica
Size Medium
Number of Bags G
Weight of Bags 50 lbs
Depth to last slot off screen; 45 feet
Boring depth
*Not to scale 45 feet
Well construction measurements are rounded to nearest 0.1 foot
All measurements are From below land surface (BLS)
Elevations are from a surveyed datum
Groundwater gauging date: 2/21/2010
Notes
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
Driller Name
Terry Watkins
Geologist Name
Robert Laumann
Drilling Method
Air Rotary
Development Method
Grundfos Pump
Drilling Start/End
Date
201012120
Well Construction
Start/End Date
201012120
D)vn:
CAB
Appr:
CA
ERM PROJECT #/HSI SITE #
107830.
FIGURE I
ERM NC, PC
1130 Situs Court
Raleigh, North Carolina
PH: [phone]
FAY: 233-4505
Divg Date:
9127110
Revision
Precision Fabrics Group
Greensboro, North Carolina
Observation
well
Co►s&ucdon
O$_1
(919)
Detail

Expandable locking cap with lock
Concrete apron
[3 feet square X 4 inches 7dccp)Top of Casing (T
Elevation: feet
h to tap ofbentonite: 31 feet
Depth to first slot of screen: 35 feet
Borehole diameter 6 1/8 inches
Manhole with bolt down lid
Ground Surface
Elevation: feet
6ROUT
Type:
Expansive cement grout
(95% Type I Portland
cement, 5% sodium
bentonitepowder)
Number of Bags
Unknown
Weight of Bags
100 lbs
RISER PIPE
Tyve PVC
Diameter 2 inch
Length 35 ft
WF1_1. GF.AT.
Type
Hydrated sodium bentonite
Size
Medium
Number of Bags
1
Weight of Bags
50 lbs
5LOTTED SCREEN
Type
PVC
Screen Slot
0.010 inch
Diameter
2 inch
Length
10 feet
28 feet below FILTER SAND
l ' ❑ TOC Type Silica
Size Medium
Number of Ba s 6
Weight of Bags 50 lbs
Depth to last slot off screen: 45 feet
Boring depth
*Not to scale 45 feet
Well construction measurements are rounded to nearest 0.1 foot
All measurements are from below land surface (BLS)
Elevations are from a surveyed datum
Nntec I I
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
Driller Name
Terry Watkins
Geologist Name
Robert Laumann
Drilling Method
Air Rotary
Development Method
Grundfos Pump
Drilling StaWE-nd
Date
201012/20
Well Construction
Start/End Date
2010/2/20
Groundwater gauging date: 2/21/2010
Dwn. Appr: ERM PROJECT WHSI SITE # FIGURE I
CAR CA 107830 ERAII NC, .PC
&vg Date: Revision 1130 Situs Court
0 D Precision Fabrics Group 06servurion Raleigh, North Carolina
Greensboro, North Carolina well PH: [phone]
O$_2 Construction FAX: [phone]
Retail

Expandable locking cap with lock
Concrete apron
Q feet square X 4 inches deep)
Top of Casing (TOC)
ILievation: feet
a
0
Depth to top of bentonite: 3 l feet
Depth to first slot of screen: 35 feet
Borehole diameter 6 118 inches
Manhole with bolt down lid
r Ground Surface
Elevation: feet
CI RO11T
Type
Expansive cement grout
(95% Type I Portland
cement, 5% sodium
bentonitepowder)
Number of Bags
Unknown
Wei ht of Ba s
100 lbs
RiRFR PiPF
Type
PVC
Diameter
2 inch
Length
35 ft
WFt t GFAi.
Type
Hydrated sodium bentonite
Size
Medium
Number of Bags
1
Weight of Bas
50lbs
SLOTTFDSCREEN
Type
PVC
Screen Slot
0.010 inch
Diameter
2 inch
Length
10 feet
F 29 feet below FILTER SAND
12, V TOC Type Silica
Size Medium
Number of Ba s 6
Weight o f Ba s 50 lbs
Depth to last slot off screen: 45 feet
Boring depth
*Not to scale 45 feet
Well construction measurements are rounded to nearest 0. l foot
All measurements are from below land surface (BLS)
Elevations are from a surveyed datum
Groundwater gauging date: 2/21/2010
Natec I I
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
DrillerName
Terry Watkins
Geologist Name
Robert Laumann
Drilling Method
Air Rotary
Development Method
Grundfos Pump
Drilling Start/End
Date
2010/2/20
Well Construction
StartlEnd Date
2010/2/20
Dwtt:
(AB
Appr:
C is
ERM PROJECT #IHSI SITE #
107830
FIGURE I
EPM NC, PC
1130 Situs Court
Raleigh, North Carolina
Dwg pale:
Revision
Observation
9 7/10
Precision Fabrics Group
Greensboro, North Carolina
well
Construction
PH: [phone]
FAX: [phone]
^
B_3
V
(919)
Detail

Expandable locking cap with lock
Concrete apron
(3 feet square X 4 inches 7deep)Top of Casing (T
Elevation: feet
Depth to top cif bentonite: 31 feet
Depth to first slot of screen: 35 feet
Borehole diameter 6 118 inches
Manhole with bolt down lid
Ground Surface
Elevation: feet
rH i61Um
Type
Expansive cement grout
(95% Type I Portland
cement, 5% sodium
bentonitepowder)
Number of Bags
Unknown
Weight of Bags
100 lbs
RISER PIP£
Type PVC
Diameter 2 inch
Length 35 ft
WFEL GFAi.
Type
Hydrated sodium bentonite
Size
Medium
Number of Bags
l
Weight of Bags
50 lbs
Type
PVC
Screen Slot
0.010 inch
Diameter
2 inch
Length
10 feet
28 feet below FILTER SAND
I'- TOC Type 'Silica
Size Medium
Number of Bags 6
Weight of Bags 50 lbs
Depth to last slot off screen: 45 feet
Boring depth
*Not to scale 45 feet
Well construction measurements are rounded to nearest 0. l foot
All measurements are from below land surface (BLS)
Elevations are from a surveyed datum
Groundwater gauging date: 2/21/2010
Nntec
Well Type
Observation Well
Drilling Contractor
Geologic Exploration
Driller Name
TerryWatkins
Geologist Name
Robert Laumann
Drilling Method
Air Rotary
Development Method
Grundfos Pump
Drilling StartlEnd
Date
201012/20
Well Construction
StartlEnd Date
2010I2120
Dwn. Appr., ERM PROJECT #1H.SI .SITE # FIGURE 1
CAB CAB 107830
Dwg Date: Revision
# 0 Precision Fabrics Group Observation
Greensboro, North Carolina well
O$-4 Construction
Detail
ERM NC, PC
1130 Situs Court
Raleigh, North Carolina
PH: [phone]
FAX: [phone]

1
Depth to top of bentonite: 29 feet
Depth to tap of sand: 31 feet
Depth to first slat of screen: 35 feet
Borehole diameter: 6 %'
Depth to last slat of screen: 45 feet
Own: Appr'
AOD I El 1
Dwg Date: Revision
7/1112011 0
GRouT
Type: Expansive rament grout (95%
Type I Partiand camera, 5%
sodium bentonBe powder)
RISER PIPE:
Type: PVC
Diameter 2 inch ID
Length 35 h
WELL SEAL
Type- Hydrated sodium herl:onite
Size' Med -urn
SLOTTED SCREEN
Type: PVC
Size: 0.010
Diameter 2 inch
Length 10 tt
FILTER SAND
Type: Silica Sand
Size: 20-40
Well Type:
Drilling Contractor:
Drillrr Name:
Guolog ss Na"
Drilling Method'
Development Method:
Drilling Start End Date:
Well Construction Start
End Date:
Boring depth: 45 feet
Monitoring watt
Geo"ic ExploraLa-
jolinny Burr
Chris Means
Alt Rotary
Pumping
20 t 117;D9-201 V7110
201 VVWL-201 1I7i 10
ERM PROJECT # FIGURE 1 ERM NC, Inc
0138869 1130 situs Court
Raleigh, North Carolina
Precision Fabrics Group Monitoring PH: [phone]
Greensboro, North Carolina Well FAX: [phone]

Depth to top of bentonite: 29 feet
Depth to top of sand: 31 feet
Depth to first slot of screen- 35 Beet
Borehole diameter 6 %"
Depth to last slot of screen: 45 feet
❑wn: Appr:
ADD I BH
Dwg Date: Revision
7/11/2011 0
MW-35S
Boring depth: 45 feet
ERM PROJECT #
0138869
Precision Fabrics Group
Greensboro, North Carolina
GROUT -
Type, Expansive cement grout (95%
Type i Portland cement, 5%
sodium benlonite posudef)
RISER PIPE:
Type: PVC
Diameter: 2 inch ID
Length 35 n
WELL SEAL:
Type- Hydrated sodium ben:onite
Size: Medium
SLOTTED SCREEN
Type' PVC
Size: 0.010
Orameter 2 inch
Length- 1011
FILTER SAND
Type: Silica Sand
Size- 20-40
Well Type:
Monitoring Well
D illir+g Contractor
Geologic Exploration
Dnller Name
Johnny Burr
Geo"isas Name
Chris Moans
Dnli" Moll -CA:
Air Rotary
DevokiWent Method:
Pumping
Drilling StarvEnd Oate-
201117J09-201 V7110
Welt Construction Start
End Date-
2011/7109-201 Will
FIGURE 1
ERM NC, Inc
1130 sites Court
Raleigh, North Carolina
Monitoring
PH: [phone]
Well
FAX: [phone]

1
Depth to top of bentonite: 29 feet
to top of sand: 31 feet
Depth to first slot of screen. 35 feet
Borehole diameter 6 '/a"
Depth to last slot of screen: 45 feet
Own: Appr:
AOD I 8H
Dwg Date: Revision
7/11/2011 0
MW-345
GROUT
Type: Expansive cement grout (95%
Type I Portland cement. 5%
sodium bentonite powder)
RISER PIPE-
Type- PVC
D+aniaw- 2 inch Id
Length 35 h
WELL SEAL-
Type Hydrated sodium bewonite
Sipe- Medium
SLOTTED SCREEN
Type: PVC
Size- 0.01C
Diameter- 2 rrch
Lengib- 10 h
FILTER SAND
Type Stirs Sand
Size: 2040
Well Type:
Drilling Contractor
Driller Name:
Geologists Name:
Drilling AAelhod
Developrnent Method:
Drilling StarllEnd Date:
Well Construction Stan
End Date:
Boring depth: 45 feet
Monitoring Well
GeohVic EVIarstior
Johnny Burr
Chris Means
Air Rotary
Pumping
201117A)9.201117110
201117109-20t 1I7! 10
ERM PROJECT# FIGURE 1 ERM NC, Inc
0138869 1130 situs Court
Raleigh, North Carolina
Precision Fabrics Group Monitoring PH: [phone]
Greensboro, North Carolina Well FAX: [phone]

Depth to top of bentanite- 29 feet
Depth to top of sand- 31 feet
Depth to first slot of screen 35 feet
Borehole diameter 6 1/:'
Depth to last slot of screen: 45 feet
Dwn:
Appr:
ROD I
BH
Dwg Date:
Revision
7/11/2011
0
MW-37S
Boring depth: 45 feet
ERM PROJECT #
0138869
Precision Fabrics Group
Greensboro, North Carolina
GROUT:
Type: Ecparsive r_ement grout (95��
Type I Portland cement, 5°S
Sodium bentnnite powder)
RISER PIPE
Type r'VC
Dwnater- 2 inch 10
Length 35 ft
WELL SEAL:
Type Hydrated sodium ben:orite
Size: Medium
SLOTTED SCREEN
Type PVC
Size: 0 010
Diameter 2 ir%ch
Length 1011
FILTER SAND
Type: Silica sand
Size: 20-40
Well Type-
Drillirg Contractor-
Driller Name-
Geait kis Name:
Drilling Method -
Development Method:
Drillirg Start(End Date:
Well Con5trurtion Start
End Date -
Monitoring Weil
Geolc+jic Exptoratior
Johnny Burr
Ctvis Mears
An Rotary
Pumping
201 V710&201117110
201117109-201 117110
FIGURE 1
ERM NC, Inc
1130 situs Court
Raleigh, North Carolina
Monitoring
PH: [phone]
Well
FAX: [phone]

DOCUMENTS
ASSOCIATED WITH THE
ORIGINAL PERMIT
APPLICATION
(MARCH 20, 2008)

_'•{ it 1 i � [ i �:. r4 fy � _•
ti
r } I p { 1► l '� 1f { is Ll
F.
xJ 4�
Y
' u
10
ay
TIElip
AP
�s-�•'• M1 µ- _ - 1 r. �-1- .. ... rt fir -_
.iP 1 iV -�iice, �/ � � .�• �f �.. ,' -
•r
I i
�-7
w ,l �• a..
r,. r"r � - i y ti � r ` � �' .' r'•T fir, lk
- ``- Rf. •�� E �*�. � - it . ..
lk _ {
Ski
r. ■- r w a a p I
w� 4 ! • r `•f 14.iJf . i
Ar
ul
-
�� � �' "` .'' ir* �� "-' ■'_ 4`` F . r •' •ice - - : ter± .
fir. �►, � 1
SCALE (IN ter),_-- - - FIGURE 1
1000 2000
��- SITE LOCATION MAP
200Q v PRECISION FABRICS GROUP, INC.
301 E. MEADOWVIEW ROAD
REFERENCE:
USGS TOPOGRAPHIC MAP LP GREENSBORO, NORTH CAROLINA
GREENSBORO, NC QUADRANGLE -
DATFLD 14ri1 PRnTnRV.VTgPn I QQ4 CAROLINAS ECS PROJECT G-6175B

EXPLANATION OF GEOLOGIC CROSS SECTION
m MW-18 LQ+ ATIU
FhN AV AE : 6. �. FILL - GRAVEL, CLAY, SILTY SAND
.. AND COAL CINDERS, SCALE (IN FEET)
60 120
WW-t5d MW-I5s Q-{� SAPROLITE - CLAY, CLAYEY SILT, SANDY
SILT AND SILTY SAND. NOTE; SAND
CONTENT GENERALLY INCREASES WITH DEPTH.
JNW-17i N 120
PARTIALLY TO MODERATELY WEATHERED ROCK - SILT
` SAND MIXED WITH SMALL PIECES OF WEATHERED RLA
Mw-5 AND WHITE GRANITE OR PINK AND WHITE GRANITE. REFERENCE:
ASPHALT PAVING NOTE: TOP OF PARTIALLY WEATHERED ROCK IS
MW cl� �� w-q' WHERE GREATER THAN 50 BLOWS/6 INCH MATERIAL LOCATIOPLAN AND WELL
NS NS PROVIDED BY
O W-13 ENCOUNTERED. BPA ENVIROMENTAL &
RES Vatic ' �Z �� 0" BEDROCK - METAMORPHOSED GRANODIOR'TE OR ENGINEERING, INC.
x MW-3i CGRANnE.
m -6 M W-3 E
TO
MW-7 SOFTFSIER MONFRlNG WELL
BCONCRETE Mw-I BvmDING DOUBLE CASED MONITORING WELL H MT
WS 1�
-2
DEC 12
MW-10 = SCREENED INTERVAL w
GFALOGIC CONTACT {I]ASIiEI7 WHERE INFERRED)
M W-12 WATER
TOWER V _ WATER •TABLE^ (NOVEMBER 1999)
PRECISION FABRICS GROUP, INC. VVwJJ TD TOTAL DEPTH
ASP T METAL
PAVING BUILDING
,a s =E
Mw-1I
LLP
METAL CAROLINAS
BUILDING
D.
W-14 FIGURE 2
LOCATION OF CROSS
Mw-24% A' SECTIONS
ado PRECISION FABRICS GROUP,
c�
Mw-z3s GREENSBORO, NC
�
E AJ
MW-16 Mw-z2i
mvd,-19s ry -Ai PROJECT NO. G-6175B
T MW-21d MW-22d
MW-2I9 MW-22s
MW-21s e -
-2Dd W-wi E' BRAWN BY/DATE
-2D-+
D. A 60 120 ;PHALT PAVING WI0-2 15 07
v CHECKED BY/BATE
SCALE IN FIST
l3
FILENAME: 6175BFIG3
t

NW
A
BOO
Mw_9 MW-13 MW
780 mw-155 �� _• �.� � ° r
1uI9V-15d 7{""
760
iv=siFr=
'�= 36 FT.•.
740
700
680
-p :, 03 FT.
rho _,
0 rw 12❑ 180
MV-7
Mw-1 mw-Z
•'�-• .p'.a •,-11: �►'-•9. i•■••fir. 0',^, ��.+',�
—�-
SCALE (IN FEET)
SE 60 120
A'
900 120 0
REFERENCE:
780 SITE PLAN AND WELL
LOCATIONS PROVIDED BY
BPA ENVIROMENTAL &
ENGINEERING, INC.
-
760
110
I�9' 111�`L
720 W
700
jE1
IV-
s
w
LLP
CAROLINAS
TD - 100 FT.
FIGURE 3
686 GEOLOGIC CROSS
SECION A -A'
PRECISION FABRICS GROUP,
INC.
GREENSBORO, NC
escs
300 3k 420 480 540 660 W 720 780 840 WO M 1,020
PROJECT NO. G-6175B
DISTANCE IN FEET
DRAWN BY/DATE
WIO-2/15/07
CHECKED BY/DATE
FILENAME: 6175BFIG3
12 Luu,

z
0
F
C
SCALE (IN FEET)
NW
5E
60 120
B
B'
800
800
120 p
MW-g MW-12 MW-lI
-
REFERENCE:
780
780
SITE PLAN AND WELL
MW-20d
LOCATIONS PROVIDED BY
A IQN S
HPA ENYIROME NTAL
-
ENGINEERING. INC.
760
760
TD �.33 FT. TA 32 :..;.: ';µ••
�1
N S
• '
''� '"'''
w
740
•� '
- •
7411 ta
.�`
,
a.
:,- fir. -
4 ::•�
.`vim`/���j}~ ....'; ' ,'.. • w ': :r
�
:+
`�
..]
41,
giLLP
.1
7DO
700
CAROLINAS
FIGURE 4
680 -
480
GEOLOGIC CROSS
71)
99 Fr-
SECION B-B'
PRECISION FABRICS GROUP,
INC.
GREENSBORO, NC
660
0
b0 120 180 240 N0 360 420 480 w 600 660 720
781) 8440
DISTANCE 1H FEET
PROJECT NO. G-6175D
DRAWN BY/DATE
WIO-2/15/07
CHECKED BY/DATE
{
FILENAME: 6175BFIG

NE w E SCALE (IN FEET)
D D' 60 120
E El
UK)
8i]0 8IH] Mimi
120 O
MW-22d NSW-23s MW-24s
m w-14 REFERENCE:
780 l.4w-2?3 713U
M 1V-20d 780 780
MW-16
MW-19s MR+-21d MW 20d SITE PLAN AND WELL
LOCATIONS O S PROVIDED BY
SPA ENVIROMENTAL &
=;ti
-�_.
RI ENGINES G N INC.
76
0
• �'. 7G0
.•1,r
•.,;•
7G0 7G0
`r.
S
TD — 35
lo
_ C
'TD 4d = OfD,
.1 r•
740
740
h
W
LQ 740 — 740 Lia
a w ?�, w
z
x
a z x
o - _
Lu
720
el
14,
CSLLP
- -'. -'• CAROLINAS
_I - -
8n 680P(Sr—REENED
101 M 690 ;•�;::':680 FIGURE E
TD = 9B,75 rr. GEOLOGIC CROSS
rag 100 �+- SECION D-D' AND E-E'
= 1S0 . PRECISION FABRICS GROUP,
TD ' k15 � INC.
sE,u Gso tNrRvAl = is Fr.) GREENSHOROr NC
G 110 230 350 48p SGO 624 — 5 S
0 120 240 36fl 4SU
D157APNCE IN FEET
DISTANCE IN FEET
PROJECT NO. G-6175B
DRAWN BY/DATE
WIO-2/15/07
CHECKED BY/DATE
FILENAME: 6175BFIG3

LEGEND
- - - - - = APPROXIMATE PROPERTY LINE
= FENCE
■ = SHALLOW MONITORING WELL
s = INTERMEDIATE MONITORING WELL
% = DEEP MONITORING WELL
= GROUNDWATER CONTOUR LINE
- - = INFERRED CONTOUR LINE
= GROUNDWATER FLOW DIRECTION
(769.10) = GROUNDWATER ELEVATIONS (10/24/
Nu = NOT MEASURED /
NW-1 WAS NOT USED TO CALC'
GROUNDWATER FLOW DIRECTION
Q°
0
Mill
STOCKHAUSEN
0
4
1[W 14 +
m + {7 55- 7)
■ +
-24S
89)
PRECISIPN FABRICS
GROUP, INC.
`NEW ADDMON(760
{7sn.97)
im
4 Y11-15D brw--195■ -] WW-4 (758-70 0
1 v
-17i
A PHALT
PA IGNG +
+ zrv-23sw
\\ 7
mw
SCALE (IN FEET)
lw 75 15❑
r--- 1 150 0
REFERENCE:
SITE PLAN AND WELL
LOCATIONS PROVIDED BY
BPA ENVIROMENTAL &
+ I ENGINEERING, INC.
4 75) ,
+ _�0 755.04)
(755,90) -21 x
Vw-21 9
44 1[1f-lo %
1rw-18 Ix ASPHALT PA G
1[rr-a
+ s■ 1�r--i2
44 x x
f ��
A
4 - x
x x
x
K -
x
DO STREET
mcLLP
CAROLINAS
FIGURE 7
GROUNDWATER
ELEVATIONS IN THE
SHALLOW WATER TABLE
AQUIFER
PRECISION FABRICS GROUP,
INC.
GREENSBORO. NC
PROJECT NO. G-6175B
DRAWN BY/DATE
WIO-2/15/07
CHECKED BY/DATE
FILENAME: 6175BFIG 3

1
LEGEND
= APPROXIMATE PROPERTY LINE
FENCE
= SHALLOW MONITORING WELL
s = INTERMEDIATE MONITORING WELL
% = DEEP MONITORING WELL
= GROUNDWATER CONTOUR LINE
- - = INFERRED CONTOUR LINE
= GROUNDWATER FLOW DIRECTION
(757.24) = GROUNDWATER ELEVATIONS (10/24/06)
" = NOT MEASURED
MW-7 WAS NOT USED TO CALCULATE
GROUNDWATER FLOW DIRECTi 41
STOCKHAUSEN
1iM-18
ti
DOS
\1:
a
PRECISION x
GROUP, INC.
ADDITION
1
j --158
l ~i till 5{76 1)
I l[11-15D
l[lf-4
-17i (759.97)
(780.09)
1
lx A HALT PAVING
r
ii11-17+
+ l(W—\24S�S
� , A
ASPHALT
PARKING
3S +
-Eli
x
cb +� 60>fw 12 l
% x f
AA Q.. rrAA In
All
- x
% � x
x
- x x
x
STREET
19)
SCALE (IN FEET)
75 150
150 O
REFERENCE:
SITE PLAN AND WELL
LOCATIONS PROVIDED BY
BPA ENVIROMENTAL &
ENGINEERING, INC.
6
N*S
A
EELP
CAROLINAS
FIGURE 8
GROUNDWATER
ELEVATIONS IN THE
INTERMEDIATE WATER
TABLE AQUIFER
PRECISION FABRICS GROUP,
INC+
GREENSBORO. NC
PROJECT NO. G-6175B
DRAWN BY/DATE
IYIO-02/15/07
CHECKED BY/DATE
FILENAME: 6175BFIG4

LEGEND
--------- = APPROXIMATE PROPERTY LINE
FENCE
= SHALLOW MONITORING WELL
ti = INTERMEDIATE MONITORING WELL
% = DEEP MONITORING WELL
= ISOCONCENTRATION CURVE
= INFERRED ISOCONCENTRATION CURVE
= NOT SAMPLED AS PART OF THIS
INVESTIGATION
(25 7) = PCE CONCENTRATIONS (ppb)
(HQL) = BELOW QUANTIFATION LIMIT
Ppb = PARTS PER BILLION=UG%
ug/L = MICROGRAMS PER LIT
Q
0
STOCKHAUSEN
0
brW-18
ti
D0YLB
I
`i 4
I�
i.
I
STREET
lrly-24S ($QL
ASPHALT
PARKING
/ef 1 lnr-m 0 (BQi
MW-22D %
MW 221
lfw`m
• l -9 L]
• l2w-
(BQL)
ASPHALT PAVING
PRECISION FABRICS
GROUP, INC.
ADDMON
! r xwRB
% MW-12
(BQL)
H11-11
• (BQI
RL =1�16:
td
�A
(8QL)liN'-215' 0
�VW--221i�
0
1IW-19S a+�
(NS) i
SCALE (IN FEET)
75 150
150 O
REFERENCE:
SITE PLAN AND WELL
LOCATIONS PROVIDED BY
BPA ENVIROMENTAL &
ENGINEERING, INC.
N+ s
mcsL`P
CAROLINAS
FIGURE 9
PCE CONCENTRATIONS
IN THE SHALLOW WATE
TABLE AQUIFER
PRECISION FABRICS GROUP,
INC.
GREENSBORO. NC
PROJECT NO. G-6175B
DRAWN 13Y/DATE
UBS/08-01-06
CHECKED BY/DATE
FILENAME: 6175AFIG5

LEGEND
- - - - = APPROXIMATE PROPERTY LINE
-- = FENCE
• = SHALLOW MONITORING WELL
'• INTERMEDIATE MONITORING WELL
% = DEEP MONITORING WELL
A = MONITORING WELLS ARE DESTROYED
-z = ISOCONCENTRATION CURVE'
INFERRED ISONCONCENTRATION CUR
rvs = NOT SAMPLED AS PART OF THIS
INVESTIGATION
34.0 = PCE CONCENTRATION (ppb) 4
BQL = BELOW QUANTITATION LI S
ppb = PARTS PER BILLION= L
ug/L = MICROGRAMS PER R
Q
0
111
STOCKHAUSEN
M I
fill-1U
+-�
UT=� .
ASPHALT \
PARKING +
+ if gas ■
)Dm+
0
IM-3 lflf-R• + (BQL)lill-ml
li\:;2-%o1
+ - BQL)
- PRECISION FABRICS
i) GROUP, INC. •
0
mw-2 (0+68)xv 81i
1 ■
10 NEW ADDITION
-1 20 NW-11
iill-6 • A
j lid 15 D ■s lilt -18.5 • `d
I 5 ]ill--4(NS)
Ix -17i
34,0) E-
1 1¢
W
lilt-1B 1+
mr-18 x HALT PAVI G I` x
% 1 I
+ �`■ -12
x " 5
�x
lx �
4
x
Dp
5ET
SCALE (IN FEET)
75 150
150 0
REFERENCE:
SITE PLAN AND WELL.
LOCATIONS PROVIDED BY
BPA ENVIROMENTAL &
ENGINEERING, INC.
Ir
,s
EcsLLP
CAROLINAS
FIGURE 10
PCE CONCENTRATIONS
IN THE INTERMEDIATE
WATER TABLE AQUIFER
PRECISION FABRICS GROUP,
INC.
GREENSBORO, NC
PROJECT NO. G-6175B
DRAWN BY/DATE
MBS/08-01-06
CHECKED BY/DATE
FILENAME: 617 5AF'I G 6

LEGEND
- - - - - = APPROXIMATE PROPERTY LINE
-- = FENCE
• = SHALLOW MONITORING WELL
s = INTERMEDIATE MONITORING WELL
ti = DEEP MONITORING WELL
NS = NOT SAMPLED AS PART OF THIS
INVESTIGATION
:3.700) = PCE CONCENTRATION (PPB) ����
BQL = BELOW QUANTITATION LIMITS P�
ppb = PARTS PER BILLION = ug/L 6'R
ug/L = MICROGRAMS PER LITER 4R�a
WE
ll
STOCKHAUSEN
Q
O
ME
lilt-18
(NS)%
o "
/+ SCALE (IN FEET)
+ 75 150
1n►-14 ti +
+ 15❑ O
- + REFERENCE:
+ ASPHALT \
PARKING SITE PLAN AND WELL
LOCATIONS PROVIDED BY
bfW-23S\ BPA ENVIROMENTAL &
m'-22Dti( L) ENGINEERING, INC.
lilt-22i
i E
w-3
lilt-s mw-P\ t itN_ N LS s
li►-zD
+ _ BQQ MR-20DBQQ w
PRECISION Q
ull-1 FABRICS "
GROUP, INC. i
fill-9 iiM-21i W
+ \ -2
NEW ADDITION
` -15S lit►-11 A
fill-15D \d lill-195\
EgLLP
5: lill-4 E-
1" -17i W CAROLINAS
l �
1 �s� e ti
l" ASPHALT PAVING FIGURE 11
ww l PCE CONCENTRATIONS
+ \ Y"-12 ` IN THE FRACTURED
BEDROCK
PRECISION FABRICS GROUP,
1" INC.
GREENSBORO, NC
PROTECT NO. G-6175B
DRAWN BY/DATE
MBS/08-01-06
_ CHECKED 13Y/DATE
STREET FILENAME: 6175AF1G7

LEGEND
- - - - -
= APPROXIMATE PROPERTY LINE
— —
FENCE
•
= SHALLOW MONITORING WELL
S
= INTERMEDIATE MONITORING WELL
%
= DEEP MONITORING WELL
= ISOCONCENTRATION CURVE
= INFERRED ISOCONCENTRATION CURVE
Ns
= HOT SAMPLED AS PART OF THIS
INVESTIGATION
(21,700) =
BQL =
PCE CONCENTRATION (PPB) ,
BELOW QUANTITATION LIMITS
��
ppb =
PARTS PER BILLION = ug/L 1�4
ug/L =
MICROGRAMS PER LITER 4LAy,�
I
710
Q
O
0
inr-18
ti
SCALE (IN FEET)
75 150
15❑ O
+ lnr-14 % +
REFERENCE:
SITE PLAN AND WELL
bfW-245 (B LOCATIONS PROVIDED BY
+ ASPHALT \ BPA ENVIROMENTAL &
PARKING * ENGINEERING, INC.
+ mw10
-
j NW-10
d
mw-m 100 N (-S � S
1[ll- �LIVV
2, (1.2 ,
.. lq w
mw_ mw-2 , + gyp,
(2 ! J00 (2. ] -20�" "f7
+ -20
21.700)
IO a
IC WW-
I tr
INC.
17. NEW ADDITION
1
i5s �nr-ii Q
l NW-5 {�pl
1w-15D [ % �NSJS' CARCLINAS
lMW-4 E-
I% -171 LIO
w
FIGURE 12
TCE CONCENTRATIONS
ASPHALT PAVING `% IN THE SHALLOW WATE]
inr-8 TABLE AQUIFER
+ s'i ilW-12 l PRECISION FABRICS GROUP,
(BQL) INC.
x x
GREENSBORO, NC
PROJECT NO. G-6175B
y DRAWN BY/DATE
I NRR/08-01-06
1,
CHECK BY/DATE
x FILENAME: 6175AP IG8

LEGEND
- - - - - = APPROXIMATE PROPERTY LINE
= FENCE
■ = SHALLOW MONITORING WELL
= INTERMEDIATE MONITORING WELL
% = DEEP MONITORING WELL A
Z(8,290) = TCE CONCENTRATIONS (ppb) '
= ISOCONCENTRATION CURVE �O
= INFERRED ISOCONCENTRATION CU}
NS = NOT SAMPLED AS PART OF THIS
INVESTIGATION
BQL = BELOW QUANTITATION LIMITS
ppb = PARTS PER BILLION = ug/L
ug/L = MICROGRAMS PER LITER
Q
O
it'll
STOCKHAUSEN
0
1rw-1a
ti
mll
1tW-14 ti„+
+ \(N3
uw- s +
ASPHAL\
PARKING +
PRECISION FABRICS
GROUP, INC.
NEW ADDITION
1 -15s
% hfw-5
YR-15D •b
11W-4 (NS)
x -17I
f fq7 Rl
1[II'-11
•
+ NW-23S•
40
VW-201
hfw-2a
MY-20
A
4
0
BQL
1I11-21
:D
1[R-19S • F.
(NS) Q
W
11 >rw-18
ASPHALT PAVING l x yww-8 (
I IL
x x l`
l l%
I■
4
r x
- x
� x
y
x
� * x
S'TRF'ET
SCALE (IN FEET)
75 150
�—mo� 4
150 ❑
I ZIA 91:4 ZI �@ Uej 3
SITE PLAN AND WELL.
LOCATIONS PROVIDED BY
BPA ENVIROMENTAL &
ENGINEERING, INC.
N H S S
UJ
A
93LLP
CAROLINAS
FIGURE 13
TCE CONCENTRATIONS
IN THE INTERMEDIATE
WATER TABLE AQUIFER
PRECISION FABRICS GROUP,
INC.
GREENSBORO, NC
PROJECT NO. G-0175B
DRAWN BY/DATE
NRR/Oa-ol-OS
CHECKED BY/DATE
FILENAME: 6175AFIGP

LEGEND
- - - = APPROXIMATE PROPERTY LINE
FENCE
• = SHALLOW MONITORING WELL
S = INTERMEDIATE MONITORING WELL
DEEP MONITORING WELL
NS = NOT SAMPLED AS PART OF THZS,,,
INVESTIGATION (I1,400)= TCE CONCENTRATIONS (ppb)Ppb = PARTS PER BILLION = ug/L
BQL = BELOW QUANTITATION LIMITS
ug/L = MICROGRAMS PER LITER ¢Y�
Q°
0
Ell
STOCKHAUSEN
�OYLE
uw-l0
+;_
• mw-
1{w- w
+
- 11,400)
1I11-1
+ 0
l
-155 ww-5
Yw-15D •d
{BQL} 1<w_4
-171
i
(KS)MW-14 %
PRECISION FABRICS
GROUP, INC.
ADDMON
• +
ww-m
ASPHALT
PARKING +
+ Hw-23S 0
uw-22D % )
lilt-221
K-
•
1(w-80
{1,05 }
a
BQL „
lnr-as �
uw-2li
-2 ❑
w
I
y„ ASPHALT PAVING {} I
I„
Y
+ 50 MW-12 `y
x x 5
jx
lx `�
I
l �r
l f�'
r
y x -
4 •�
r
STREET
SCALE (IN FEET)
75 150
SITE PLAN AND WELL
LOCATIONS PROVIDED BY
BPA ENVIROMENTAL &
ENGINEERING, INC.
CAROLINAS
FIGURE 14
TCE CONCENTRATIONS
IN THE FRACTURED
BEDROCK
PRECISION FABRICS GROUP,
INC.
GREENSBORO, NC
PROJECT NO. G-6175B
DRAWN BY/DATE
NRR/06-01-06
CHECKED BY/BATE
FILENAME: 6175AFIG 10

WJb WOO 93
ERM NC, INC.
December 21, 2012
David Goodrich
UIC Program - Aquifer Protection Section
North Carolina DENR - DWQ
1636 Mail Service Center
Raleigh, NC 27699-1635
Phone [phone]
Subject. Injection Event Record
Precision Fabrics Group (PFG)
Greensboro, North Carolina
UIC Permit Number WI0400093
Dear Mr. Goodrich:
8000 Corporate Center Drive
Suite 200
Charlotte, NC USA 28226
704541-8345
Please find attached an injection event record for the referenced injection of Anaerobic
BioChem (ABC) into the subsurface at the Precision Fabrics Group facility in Greensboro, North
Carolina. The ABC was injected to treat volatile organic compound impacted groundwater.
Please call if you have any questions.
Sincerely,
ram'
Ed Hollifield, P.G.
Project Manager
Attachment - Injection Event Record
RECEIVEDIDENHWO
DEC 2 7 20$2
Aquifer Protection Sedon

INJECTION EVENT RECORD
North Carolina Department of Environment and Natural Resources -- Division of Water Quality
Permit Number WID400093
1. Permit Information
Precision Fabrics Group, Inc.
Permittee
Precision Fabrics Group (PFG)
Facility Name
301 East Meadowview Road Greensboro, NC 27406
Facility Address
2. Injection Contractor Information
ERM NC, Inc.
Injection Contractor 1 Company Name
Street Address 8000 Corporate Center Drive
Charlotte NC 28226
City State Zip Code
704 678-0140
Area code --- Phone number
3, Well Information
Number of wells used for injection 12
IW-1,0-2, os-411W-%!W-5, IW-4, rW-11, IW-12,
Well names IWS, IW-101 M-9,1W-71 Iw-6
Were any new wells installed during this injection
event?
❑ Yes ❑ No
If yes, please provide the following information:
Number of Monitoring Wells
Number of Injection Wells
Type of Well installed (Check applicable type):
❑ Bored ❑ Drilled ❑ Direct -Push
❑ Hand -Augured ❑ Other (specify)
Please include hvo copies of form +GW-I b for each
vCl1H1G RNAMell installed.
t
Were any wells abandoned during this injection
event?
❑ Yes ❑■ No
If yes, please provide the following information:
Number of Monitoring Wells
Number of Injection Wells
Please include h4,o copies of the GW-30 far each
well abandoned.
4. Injectant Information
Anaerobic BioChern (ABC)
Injectant Type
1,100 Ih ABC in 600 gal per location
Concentration
If the injectant is diluted please indicate the source
dilution fluid.
Total Volume Injected 7 , 200 gals
Volume Injected per well 6Q0 gals
5. Injection History
Injectiondates)419/10712/l /10, 10/5/12
Injection number (e.g, 3 of 5) 3 of 4
Is this the last injection at this site?
❑ Yes 0 No
I DO HEREBY CERTIFY THAT ALL THE
INFORMATION ON THIS FORM IS CORRECT TO
THE BEST OF MY KNOWLEDGE AND THAT THE
INJECTION WAS PERFORMED WITM THE
STAND S LAID OUT I THE PERMIT.
z z46tfE__ 4elza b Z.
5I t, 9 XT 0 RF, UF 90ECTI UT CONTRACTOR DA
THE
t,
Submit the on nai f rm to the Division of Water Quality within 30 days of injection.
A ail Service Center, Raleigh, NC 27699-1635, Phone No. 919-733-3221
Form UIC-IER
Rev. 07/09

;n
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director Secretary
March 9, 2012
Lee Aiken, Director of Manufacturing Services
Precision Fabrics Group, Inc.
P.O. Box 214448
Greensboro, NC 27420
Ref; Issuance of Injection Permit WI0400093
Precision Fabrics Group, Inc. Facility
301 Fast Meadowview Road
Greensboro, Guilford County, North Carolina.
Dear Mr. Aiken;
In accordance with the application received on February 2, 2012, and the supporting data received February 20, 2012 and
March 1, 20I2, we are forwarding permit number WI0400093, This permit is to inject Anaerobic BioChem (ABC),
Dehalococcoides bacteria (DHC), and Magnesium Hydroxide or Sodium Hydroxide for the enhanced bioremediation of
chlorinated solvents at the facility referenced above. This permit shall be effective from the date of issuance until
February 28, 2014, and shall be subject to the conditions and limitations stated therein, including the requirement to
submit a final project evaluation as stated in PART VII — MONITORING AND REPORTING REQUIREMENTS, Please
read the entire permit to ensure that you are aware of all compliance requirements of the permit. Please note that the
permit requires the construction of a new deep monitor well near the location of existing well MW-36S, and the inclusion
of this well and existing well MW-22D in the quarterly monitoring program,
You will need to notify (his office by telephone 48 hours prior to initiation of operation of the facility. In order to
continue: uninterrupted legal use of the injection facility for the stated purpose, you must submit an application to renew
the permit 120 days prior to its expiration date. Please contact me at 919-807-6352 or at [e-mail] if
you have any questions about your permit.
Best Regards,
David Goodrich, L.G.
I lydrogeologist
�L. L3d tVJII hll lbiil, Yl k1jaLULl-..]�N��lI tl b& 111,Lk �-•I tn.
Janet MacDonald, Division of Waste Management-Superfund Section
Beau Hodge, PG, ERM NC, PC, 1 130 Situs Court, Suite 250, Raleigh, NC 27606
W10400093 Permit File
AuulrER t,Kvk0INN sLu j 04
1636 Mail Service Center, Raleigh, North Carolina 27699.1635
Location_ 512 N Sallsbury St., Raleigh, North Carolina 27664 One
Phone'
919.8Q7-B4ti41FAX, 919-807.6496 N tliCarolina
Internet: mm.nmateraualfty.ore
An fpual Opporllm41 Affvmalive AeIon Employer atu }� �" 111

Goodrich, David
From: Knight, Sherri
Sent: Monday, March 12, 2012 4 28 PM
To: Goodrich, David
Subject: RE: WSRO Comments on Precision Fabrics injection permit WI0400093
I have read the staff report and concur with the requested information.
Sherri Knight, PE.
NC DENR Winston-Salem Regional Office
Division of Water quality, Aquifer Protection Section
585 Waughtown Street
Winston-Salem, NC 27107
Voice: t336j 771-5280
FAX: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Goodrich, David
Sent: Monday, March 12, 2012 1:30 PM
To: Knight, Sherri; Wang, Shuying
Subject: WSRO Comments on Precision Fabrics Injection permit WI0400093
Sherri,
We received your office's comments on the Precision Fabrics Injection Permit.
However, they did not include your signature. Could you send me a brief message confirming your approval of the
comments?
Thank you!
Regards,
David Goodrich
Office Telphone Number: [phone]
Aquifer Protection Section Main Number: [phone]
Fax Number: [phone]

Goodrich, David
From: Goodrich, David
Sent: Thursday, March 01, 2012 9:32 AM
To: 'Beau Hodge'
Subject: RE: Injections at the Precision Fabrics Group Site
Mr. dodge:
Thank you for clarifying the situation for me.
The permit application package appears to be missing Figures 3, 4, and 5 (and possibly others).
Attachment H begins with Figure 9.
Please send me these Figures electronically or by mail at your earliest convenience.
Thank you.
Regards,
David Goodrich
Aquifer Protection Section Central Office
Office Telphone Number: [phone]
Aquifer Protection Section Main Number: [phone]
Fax Number: [phone]
From: Beau Hodge fmailto:Beau. [e-mail]
Sent: Wednesday, February 29, 2012 8:50 AM
To: Goodrich, David
Cc: Aiken, Lee
Subject: RE: Injections at the Precision Fabrics Group Site
The new permit is intended to replace the original remediation strategy. The original strategy was a barrier approach with
the 44 wells and was never performed. ERM revised the approach to a source area remediation with the well designation
as stated in the recently submitted report. Sorry for any confusion and thank you for the prompt response on the
application.
Beau Hodge, PG
ERM NC, Inc.
1130 Situs Court, Ste 250
Raleigh, NC 27606
Phone: [phone]
Cell: [phone]
One Planet, One Company, ERM
From: Goodrich, David[mailto:david.goodrichC&ncdenr.gov]
Sent: Wednesday, February 29, 2012 8:38 AM
To: Beau Hodge
Subject: Injections at the Precision Fabrics Group Site
Mr. Hodge:

Goodrich, David
From: Goodrich, David
Sent: Thursday March 01. 2012 2:56 PM
To: 'Allison Dugan'
Subject: RE. Figures for Infections at the Precision Fabrics Group Site
Dear Ms. Dugan:
Thank you and Mr. Hodge for your rapid response to my request. I will be In contact if I need anything further,
Regards,
David Goodrich
Aquifer Protection Section Central Office
Office Telphone Number: [phone]
Aquifer Protection Section Main Number: [phone]
Fax Number: [phone]
From: Allison Dugan [mailto:Ailison,DuganPaerm.com]
Sent: Thursday, March 01, 2012 1:07 PM
To: Goodrich, David
Cc: Beau Hodge
Subject: Figures for Injections at the Precision Fabrics Group Site
Dear Mr. Goodrich:
Beau Hodge asked me to forward to you the attached figures you requested that were missing from the Permit Application
for PFG. Please let me know if you need any additional information.
Beau will follow up with you this afternoon to answer any additional questions you may have.
Thank you
Allison Dugan
ERM NC, Inc
(919) 2334501
This electronic mail message may contain information which is (a) LEGALLY PRIVILEGED, PROPRIETARY IN NATURE, OR OTHERWISE PROTECTED BY
LAW FROM DISCLOSURE, and (b) intended only for the use of the Addressee (s) names herein. If you are not the Addressee (s). or the person responsible for
delivering this to the Addressee (s), you are hereby notified that reading. copying, or distributing this message is prohibited. If you have received this electronic
mail message in error, please contact us immediately at [phone] and take the steps necessary to delete the message completely from your computer
system. Thank you. ERM NG, Inc-

To: Goodrich, David
Cc: Knight, Sherri; Jennifer Byrd
Subject: RE: MSDS Sheets for the Precision Fabrics Injection Permit
David,
I have attached the MSDS sheets for the materials you requested. Please let me know if this is sufficient or if we need to
send by mail.
Beau Hodge, PG
ERM INC, Inc.
1130 Situs Court, Ste 250
Raleigh, NC 27606
Phone: [phone]
Cell: [phone]
One Planet, One Company, ERM
From: Goodrich, David mailto:david, oodrich ncdenr. ov
Sent: Monday, February 20, 2012 10:38 AM
To: Beau Hodge
Cc: Knight:, Sherri
Subject: MSDS Sheets for the Precision Fabrics Injection Permit
Mr. Hodge:
The Aquifer Protection Section is in receipt of the application for an injection permit at the Precision Fabricsfacility in
Greensboro, NC.
In order to perform our review, we need Material Safety Data Sheets far each of the proposed injectant substances
(ABC, Dehalococcoides bacteria, and Magnesium Hydroxide and / or Sodium Hydroxide (both, if it is undecided which
hydroxide chemical will be used).
Thank you for your assistance.
Regards,
David Goodrich
Aquifer Protection Section Central Office
Office TeIphone Number: [phone]
Aquifer Protection Section Main Number: [phone]
Fax Number: [phone]
This electronic mail message may contain information which is (a) LEGALLY PRIVILEGED. PROPRIETARY IN NATURE, OR OTHERWISE PROTECTED BY
LAW FROM DISCLOSURE, and (b) intended only for the use of the Addressee (s) names herein. If you are not the Addressee (s), or the person responsible for
delivering this to the Addressee (s), you are hereby notified that reading, copying, or distributing this message is prohibited. If you have received this electronic
mail message in error. please contact us immediately at [phone] and take the steps necessary to delete the message completely from your computer
system. Thank you. ERM NC, Inc.

Goodrich, David
From: Wang, Shuying
Sent: Tuesday, February 21, 2012 5:15 PM
To: [e-mail]
Cc: Knight, Sherri; Goodrich, David
Subject: RE: MSDS Sheets for the Precision Fabrics Injection Permit
Hi Mr, Hodge,
Your application does show concentrations of VOCs decreasing after two injection events of ABC and DHC. However,
there is no data to show whether the injection had any negative impact on groundwater in transition zone and bedrock.
Although it is unlikely that the injection had any affects on deeper wells because of the distance between deeper wells
and the injection wells and the limited injection area, I would like to have a copy of the last groundwater monitoring
report prepared after the completion of the pilot injection to look at if it should be concerned. Could you pass me a copy
of the report? If this message is not clear, please call me at 336-771-S287. Thank you!
Shuying Wang
Hydrogeologist
NC DENR Winston-Salem Regional Office
Division of Water Quality, Aquifer Protection Section
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone] or 771-4632
shuyl ng . wa [e-mail]
http.ZZpo rta I. ncd e n r.o rp,lwe b/wglaps
E-mail correspondence to and from this address may be subject to
the North Carolina Public Records Law and may be disclosed to third parties.
****************
From: Knight, Sherri
Sent, Tuesday, February 21, 2012 11:34 AM
To: Wang, Shuying
Subject: FW: MSDS Sheets for the Precision Fabrics Injection Permit
Sherri Knight, PE
NC DENR Winston-Salem Regional Office
Division of Water Quality, Aquifer Protection Section
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Beau Hodge mailto,Beau. Hod a erm.com
Sent: Monday, February 20, 2012 11:33 AM

Goodrich, David
From:
Beau Hodge [[e-mail]]
Sent:
Wednesday. February 29, 2012 8:50 AM
To:
Goodrich, David
Cc:
Aiken, Lee
Subject:
RE: Injections at the Precision Fabrics Group Site
The new permit is intended to replace the original remediation strategy. The original strategy was a barrier approach with
the 44 wells and was never performed_ ERM revised the approach to a source area remediation with the well designation
as stated in the recently submitted report. Sorry for any confusion and thank you for the prompt response on the
application.
Beau Hodge, PG
ERM NC, Inc.
1130 Situs Court, Ste 250
Raleigh, NC 27606
Phone: [phone]
Cell: [phone]
One Planet, One Company, ERM
Frorrt: Goodrich, David fmailto:david.goodrichOncdenr.gov]
Sent: Wednesday, February 29, 2012 8:38 AM
To: Beau Hodge
Subject: Injections at the Precision Fabrics Group Site
Mr, Hodge:
I am drafting the new injection permit for the subject facility in Greensboro.
The original injection permit, issued on March 27, 2008, allowed the injection of HRC into 44 injection wells.
It is unclear as to whether these proposed injections were ever performed. The documents associated with the current
permit submission make reference to a pilot tests on two injection wells in April of 2010 and December of 2010. The
eleven injection wells proposed in the current permit application have the same name designations as the originally -
proposed wells.
Please inform me as to whether the originally -proposed injections were ever performed, or if the new permit is intended
to "replace" the original remediation strategy.
Thank you.
Regards,
David Goodrich
Aquifer Protection Section Central Office
Office Telphone Number: [phone]
Aquifer Protection Section Main Number: [phone]
Fax Number: [phone]

Ake
NCDENR
North Carolina Department of Environment and
Uovernor Director
February 14, 2012
Lee Aiken -- Director of Manufacturing Services
Precision Fabrics Group, Inc.
PO Box 214448
Greensboro, NC 27420
Dear Mr. Aiken:
Natural Resources
Subject: Acknowledgement of
Application No. W10400093
Precision Fabrics Group, Inc.
Greensboro Facility
Injection In situ Groundwater
Remediation Well (51) System
Guilford County
Secretary
The Aquifer Protection Section acknowledges receipt of your permit application and supporting
documentation received on February 2, 2012. Your application package has been assigned the number
listed above, and the primary reviewer is David Goodrich.
Central and Winston-Salem Regional Office staff will perform a detailed review of the provided
application, and may contact you with a request for additional information. To ensure maximum
efficiency in processing permit applications, the Aquifer Protection Section requests your assistance in
providing a timely and complete response to any additional information requests.
Please note that processing standard review permit applications may take as long as 60 to 90 days
after receipt of a complete application. If you have any questions, please contact
David Goodrich at [phone] or [e-mail].
Sincerely,
a
Ok �'&a'u
for Debra J. Watts
Groundwater Protection Unit Supervisor
cc: Winston-Salem Regional Office, Aquifer Protection Section
Beau Hodge, P.G. R.S.M. -- ERM NC, PC
Permit File WI0400093
1636 Mail Service Center, Ralegh, North Carolina 27699.1636
Location: 512 N. Salisbury St., Raleigh, NoM Carolina 27604
Phone: 919-807A4641 FAX: [phone]
Internet www.nmatercualHy.om
One
NorlhCarolina
An Equal Opponunily k Afl9rmative Aaron Er l)"r

DOCUMENTS
ASSOCIATED WITH THE
ORIGINAL PERMIT
APPLICATION
(MARCH 20, 2008)

�LdP
GgRQL-INA>S
ECS CAROLINAS, LLP _ _
Geotechnical • Construction Materials Environmental
Mr. Qu Qi
NCDENR - Division of Water Quality
LUC Program
1636 Mail Service Center
Raleigh, North Carolina 27699-1636
Reference: Injection Well Diagrams
Precision Fabrics Group, Inc. Facility
301 East Meadowview Road
Greensboro, Guilford County, North Carolina
Site ID# NONCD 000 1020
ECS Project 09.61755
Dear Mr Qu Qi:
March 11, 2008
ECS Carolinas (ECS) is pleased to submit the following injection well diagrams and explanation per our
recent telephone conversation.
The site is the Precision Fabrics Group, Inc. (PFG) textile manufacturing facility located at 301 East
Meadowview Road in Greensboro, North Carolina. During our telephone conversation, there was some
confusion as to the number and construction of the proposed injection wells installed or to be installed at
the site. The attached Injection Well Diagrams (intermediate and Deep) should clarify the proposed well
installation for the pending injection permit.
Currently, there are three intermediate depth (70 feet deep) injection wells (IW-1, IW-2 and IW-3) and
three deep (150 feet deep) injection wells installed at the site. The existing wells were installed as part of
a HRC injection pilot study (UIC Permit No. WI0400028). ECS has proposed to install an additional 19
intermediate depth and 18 deep injection wells for a total number of 43 injection wells. As indicated on
the Plat included with the injection permit application, the new intermediate depth injection wells will be
designated IW-7, IW-9, IW-12, NV-14, IW-16, IW-18, IW-20, IW-22, NV-24, AV-26, NV-28, IW-30, IW-
32, IW-34, IW-36, IW-38, IW-40, IW-42,and IW-44. The new deep injection wells will be designated
IW-8, IW-10, AV-13, IW-15, IW-17, 1W-19, IW-21, IW-23, IW-25, IW-27, IW-29, IW-31, IW-33, IW-35,
AV-37, IW-39, IW-41and IW-43.
Please note the use of packers in the proposed injection wells. In order to get a more uniform distribution
of the HRC injectant across the entire screened interval, ECS proposes the use of packers to inject % of
the product in the lower half of the screen and %: in the upper half.
MAR 13 2008
4811 Koger Boulevard ■ Greensboro, NC 27407 • [phone] • Fax [phone]

Injection Permit Well Diagrams
Precision Fabrics Group Facility
Greensboro, North Carolina
ECS Project 09.671 SB
March 11, 2008
We are pleased to have the opportunity to offer our services and look forward to working with PFG and
the NCDENR on this project. We appreciate your timely attention to this injection permit request. If
you have any questions or comments concerning the contents of the enclosed documents or other related
topics, please feel free to contact us.
Respectfully submitted,
ECS CAROLINAS, LLP
eallje�5kl-
Randy H. avallier
Project Geologist
Attachments: Proposed Intermediate Type III Injection Well Construction Diagram
Proposed Deep Type III Injection Well Construction Diagram

JOB NAME: PRECISION rABRICS GROUP, INC. JOB NUMBER: G-6175B
l►1A11Wt$j� --_Iof.a
LOCATION: GREENSBORO, NORTH CAROLINA
GROUND SURFACE
CONCRETE
LOCKABLE CAP
GROUT
6—INCH DIA.
2—INCH DIA. SCH. 80 PVC RISER
5—INCH DIA. .188 GALVANIZED RISER
35.0 FT.
2—INCH DIA. SCH. 80 PVC SCREEN
(04—INCH SLOTS) —
BENTONITE SEAL
(33-38 FT.) —
PACKER
SAND PACT{
IQ
r,mw f)3i
NOTE: ALL PVC JOINTS ARE
FLUSH THREADED
COVER ASSEMBLY WITH
REMOVABLE STEEL COVER
DEPTH TO
BASE OF
GROUT
33.0 FT.
)EPTH TO
TOP OF
SAND
38.0 FT.
TOTAL
DEPTH OF
BOREHOLE
70.0 FT.
TOTAL
DEPTH
OF WELL
70.0 FT.
INJECTION INTERVAL
— _ 40.0-54.0
SCREENED INTERVAL
40.0-70.0 FT.
_ INJECTION INTERVAL
55.0-70.0
rc
&LP
CAROLINAS
PROPOSED INTERMEDIATE
TYPE III
MONITORING INJECTION
WELL CONSTRUCTION
DIAGRAM

JOB NAME: PRECISION i ABRICS GROUP, INC.
J013 NUMBER: G--6175B
vain l""W31:1043
LOCATION: GREENSBORO, NORTH CAROLINA
COVER ASSEMBLY WITH
REMOVABLE STEEL COVER
GROUND SURFACE ° .: �'• '_;e':.
CONCRETE
LOCKABLE CAP
DIA. BOREHOLE �� N �. TO
\/ �\OF
Is
80 ` f I GROUT
IN" 's
DIA. .188 GALVANIZED RISER
r Fr.
2-INCH DIA. SCH. 80 PVC SCREEN
(.04-INCH SLOTS)
BENTONITE SEAL
(93-98 FP.y
PACKER
SAND PACK
BOTTOM
NOTE: ALL PVC JOINTS ARE
FLUSH THREADED
DEPTH TO
TOP OF
SAND
98.0 FT.
11
1
TOTAL
DEPTH OF
BOREHOLE
150.0 FT.
TOTAL
DEPTH
OF WELL
150.0 FT.
_ ..: T
INJECTION INTERVAL,
100.0-125.0
SCREENED INTERVAL
100.0-150.0 FT.
INJECTION INTERVAL
—_ 126.0-150.0
CAROLINAS
PROPOSED DEEP TYPE III
MONITORING INJECTION
WELL CONSTRUCTION
DIAGRAM

ECS CARGNAS, LLP
E§7
LIGeotechnical - Construction Materials - Environmental
CAROLIHAS
To:
QU ❑i
NCDENR-DWQ (UIC Program)
1636 Mail Service Center
Aquifer Protection Section
Raleigh, NC 27699-1636
We are sending you the following items via: FedEx Priority
LETTER OF TRANSMITTAL
Date; 12-11-07 TProject No. 09:6175B
Re:
Precision Fabrics Group, Inc.
301 East Meadowview Road
Greensboro, NC
DE[' 1 Z Zuti,
COPIES
DATED
I DESCRIPTION
2
11-20-07
1 Revised Application for Permit to Construct Wells for Injection
These are transmitted as checked below:
x For your use
As requested
REMARKS
Attached is our report for the above referenced site. Please sign below indicating that you have received our report.
For questions or comments regarding this report, please contact Randy Cavallier.
III '
�a
Cathy L. r
Environ " tal Administrative Assistant
Received bv: Date:
4911 Koger Boulevard - Greensboro, NC 27407 - [phone] - Fax [phone]

Michael F. Easley. Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Nature! Resources
December 14, 2007
LEE AIKEN
PRECISION FABRICS GROUP, INC..
301 MEADOWVIEW ROAD
GREENSBORO, NC 27406
Subject: Acknowledgement of Application No. W10400093
Precision Fabrics Group
Injection in situ Groundwater Remediation Well (5I)
Guilford County
Dear MR AIKEN:
Coleen H. Sullins Director
Division of Water Quality
The Aquifer Protection Section of the Division of Water Quality (the Division) acknowledges receipt of
your permit application and supporting materials on December 12, 2007. This application package has
been assigned the number listed above and will be reviewed by Qu Qi.
The reviewer will perform a detailed review and contact you with a request for additional information if
necessary. To ensure the maximum efficiency in processing permit applications, the Division requests
your assistance in providing a timely and complete response to any additional information requests.
Please be aware that the Division's Regional Office, copied below, must provide recommendations prior
to final action by the Division. Please also note at this time, processing permit applications can take as
long as 60 - 90 days after receipt of a complete application.
If you have any questions, please contact Qu Qi by phone at [phone] or by email at
qu.gil'a,ncmail.net. If the reviewer is unavailable, you may leave a message, and they will respond
promptly. Also note that the Division has reorganized. To review our new organizational chart, go to
hM-�Lh2o.enr.state.nc.us/documents/dwq Mchart. df.
PLEASE REFER TO THE ABOVE APPLICATION NUMBER WHEN MAKING INQUIRIES
ON THIS PROJECT.
Sincerely,
C IZWL �..f I
For Debra J. Watts
Supervisor
cc: Winston-Salem Regional Office, Aquifer Protection Section
Permit Application File W10400093
Randy Cavallier - FCS Carolinas, LLP, 4911 Koger Blvd., Greensboro, NC 27407
Aquifer Protection Section 1636 Mail Service Center
Internet' www.ncwatUguali1y.,QM Location: 2728 Capital Boulevard
An Equal OpportunilylAffimative Action Ernpbyer 50% Recycledil0% Post Consumer Paper
N?; Carolina
Xaturally
Raleigh. NC 27699-1636 Telephone: [phone]
Raleigh, NC 27604 Fax 1; [phone]
Fax 2. [phone]
Customer service: [phone]

AQUIFER PROTECTI.ON SECTION`
APPLICATION REVIEW REQUEST FORM FFB } 5 2012
Date: Febrauary 14, 2012
a: ❑ Landon Davidson, ARO-APS ❑ David May, WaRO-APS
❑ Art Barnhardt, FRO-APS ❑ Charlie Stehman, WiRO-APS
❑ Andrew Pitner, MRO-APS X Sherri Knight, WSRO-APS
❑ Jay Zimmerman, RRO-APS
David Goodrich, Land Application Unit $ n 7 - 6 Y 9 6
Telephone: (g 19) 7+.'mH-(Y2 $ g!� 7 - 6 3 S z. Fax: (919) DE S
E Mail: [e-mail] i
A. Permit Number: W10400093 j
B. Owner: Precision Fabrics Group, Inc.
C. Facility/Operation: Precision Fabrics Group Greensboro Facility '
X Proposed ❑ Existing X Facility X Operation
D. Application:
1. Permit Ttpe: ❑ Animal ❑ Surface Irrigation ❑
❑ Recycle ❑ I/E Lagoon X
❑ U1C - (5A7) open loop geothermal
For Residuals: ❑ Land App. ❑ D&M
❑ 503 ❑ 503 Exempl
Reuse ❑ H-R Infiltration
GW Remediation (ND) 5I Inj. wells
❑ Surface Disposal
❑ Animal
Z. Project Type: Q New ❑ Major Mod. ❑ Minor Mod. ❑ Renewal X Renewal w/ Mod.
E. Comments/Other Information: ❑ I would like to accompany you on a site visit.
Attached, you will find all information submitted in support of the above -referenced application for your
review, comment, and/or action. Within 30 calendar days, please take the following actions:
X Return a Completed APSARR Form. - Please comment
❑ Attach Well Construction Data Sheet,
❑ Attach Attachment B for Certification by the LAPCU.
❑ Issue an Attachment B Certification from the RO.*
* Remember that you will be responsible for coordinating site visits and reviews, as well as additional
information requests with other RO-APS representatives in order to prepare a complete Attachment B for
certification. Refer to the RPP SOP for additional detail.
When you receive this request form, please write your name and dates in the spaces below, make a copy
of this sheet, and return it to the appropriate Central Office -Aquifer Protection Section contact person
listed above.
RO-APS Reviewer: "'A Date:
FORM: APSARR 07/06 Page 1 of 1

AQUIFER PROTECTION SECTION — GROUNDWATER PROTECTION UNIT
REGIONAL STAFF REPORT
Date: 2/22/2012 Permittee(s):_Precision Fabrics Group, Inc
Permit No.: WI0400093
To: APS Central Office County: Guilford
Central Office Reviewer: David Goodrich Project Name: Precision Fabrics
Regional Login No:
L GENERAL INFORMATION
1, This application is (check ai that apply): ❑ SFR Waste Irrigation System ❑ UIC Well(s)
❑ New ® Renewal
❑ Minor Modification ® Major Modification
❑ Surface Irrigation ❑ Reuse ❑ Recycle ❑ High Rate Infiltration ❑ Evaporation/Infiltration Lagoon
❑ Land Application of Residuals ❑ Attachment B included ❑ 503 regulated ❑ 503 exempt
❑ Distribution of Residuals ❑ Surface Disposal
❑ Closed -loop Groundwater Remediation ® Other Injection Wells (including in situ remediation)
Was a site visit conducted in order to prepare this report? ❑ Yes or ® No.
a. Date of site visit:
b. Person contacted and contact information:
c. Site visit conducted by:
d. Inspection Report Attached: ❑ Yes or ❑ No,
2. Is the following information entered into the RIMS record for this application correct?
® Yes or ❑ No. If no, please complete the following or indicate that it is correct on the current application.
For SFR Treatment Facilities:
a. Location:
b. Driving Directions:
c. USGS Quadrangle Map name and number;
d. Latitude; Longitude: Method Used (GPS, GoogleTM, etc.};
e. Regulated Activities 1 Type of Wastes (e.g., subdivision, food processing, municipal wastewater):
For UIC Injection Sites:
(If multiple sites either indicate which sites the information applies to, copy and paste a new section into the
document for each site, or attach additional oases for each site
a. Location(s):
b. Driving Directions:
c. USGS Quadrangle Map name and number:
d. Latitude: Longitude: Method Used (GPS, GoogleTM, etc.)
APS-GPU Regional Staff Report (Sept 09) Page 1 of 6 Pages

AQUIFER PROTECTIVir SECTION — GROUNDWATER PROTECTION UNIT
REGIONAL STAFF REPORT
IV INJECTION WELL PERMITAPPLICATIONS (Complete these two sections for all systems that use injection
wells, including closed -loop groundwater remediation effluent injection wells, in situ remediation injection wells, and heat
pump injection wells.)
Description of Well(s) and Facilities —View, Renewal, and Modification
1. Type of injection system:
❑ Heating/cooling water return flow (5A7)
❑ Closed -loop heat pump system (5QW5QW)
® In situ remediation (5I)
❑ Closed -loop groundwater remediation effluent injection (5U'Non-Discharge")
❑ Other (Specify: _ -
2. Does system use same well for water source and injection? ❑ Yes ® No
3. Are there any potential pollution sources that may affect injection? ® Yes ❑ No
What is/are the pollution source(s)? Onsite surficial surfactant sumo. What is the distance of the injection
well(s) from the pollution source(s)? >200 ft.
4. What is the minimum distance of proposed injection wells from the property boundary? ft.
S. Quality of drainage at site: ® Good ❑ Adequate ❑ Poor
C. Flooding potential of site: ® Low ❑ Moderate ❑ High
7, For groundwater remediation systems, is the proposed and/or existing groundwater monitoring program
(number of wells, frequency of monitoring, monitoring parameters, etc.) adequate? ❑ Yes ® No. Attach
map of existing monitoring well network if applicable, If No, explain and recommend any changes to the
groundwater monitoring program: Groundwater_ monitoring data from your two reports emailed me on
February 22.2012 indicates that the plume may have remobilized if it had ever been stabilized (see table
below; the wells are donwgradient wells). To monitor weather the proposed injections really have any adverse
impact on migration of the plume in bedrock or downgradient, please include one of deep wells into the
proposed quarterly sampling plan. In addition, it looks to be necessary to install another deep well at the
Iocation of existing MW-36S.
Well ID
TCE Concentration (µgo)
July 2009
July 2010
ugust 2011
MW-20I
2
274
716
MW-21I
124
164
200
MW-22I
2840
2670
5670
MW-20D
738
630
1060
MW-22D
6190
10700
11900
APS-GPU Regional Staff Report (Sept 09) Page 4 of 6 Pages

AQUIFER PROTECTIUi-4 SECTION - GROUNDWATER PROTECTION UNIT
REGIONAL STAFF REPORT
8. Does the map presented represent the actual site (property lines, wells, surface drainage)? ® Yes or ❑ No. If
no or no map, please attach a sketch of the site. Show property boundaries, buildings, wells, potential pollution
sources, roads, approximate scale, and north arrow.
Injection Well Permit Renewal and Modification Only:
1. For heat pump systems, are there any abnormalities in heat pump or injection well operation (e.g. turbid water,
failure to assimilate injected fluid, poor heating/cooling)?
❑ Yes ❑ No. If Yes, explain:
2. For closed -loop heat pump systems, has system lost pressure or required make-up fluid since permit issuance
or last inspection? ❑ Yes ❑ No. If yes, explain:
3. For renewal or modification of groundwater remediation permits (of any type), will
continued/additional/modified injections have an adverse impact on migration of the plume or management of
the contamination incident?-❑ Yes ❑ No. If yes, explain: Unlikely, but need to monitor
4. Drilling Contractor: Name: Geologic Exploration. Inc.
Address:
NC Certification number: 2401
5, Complete and attach NEW Injection Facility Inspection Report, if applicable
I! E VAL UA TION A ND RECOMMENDATIONS
1. Provide any additional narrative regarding your review of the Application:
2. Attach new Injection Facility Inspection Form, if applicable
3. Do you foresee any problems with issuance/renewal of this permit? ❑ Yes ® No. If yes, please explain
briefly,
4. List any items that you would like APS Central Office to obtain through an additional information request.
Make sure that you provide a reason for each item:
Item Reason
APS-GPU Regional Staff'Report (Sept 09) Page 5 of 6 Pages

AQUIFER PROTECTIbri SECTION - GROUNDWATER PROTECTION UNIT
REGIONAL STAFF REPORT
5. List specific Permit conditions that you recommend to be removed from the permit when issued. Make sure
that you provide a reason for each condition:
Condition
Reason
Submit a copy of each
To evaluate if injections have any adverse impacts on groundwater
quarterly monitoring
quality or plume migration.
report during first two
years of proposed fall
scale injection to WSRO
A couple of deep wells
See explanation in Section IV Item 7
should be included in
quarterly monitoring plan
6. List specific special conditions or compliance schedules that you recommend to be included in the permit when
issued. Make sure that you provide a reason for each special condition:
Condition Reason
7. Recommendation: ❑ Hold, pending receipt and review of additional information by regional office; ❑ Hold,
pending review of draft permit by regional office; ❑ Issue upon receipt of needed additional information;
Issue; ❑ Deny. If deny, please state reasons:
8. Signature of report Preparers);
Signature of APS regional superv.aul .
Date:
VI. ADDITIONAL INFORMATION AND SITE MAP (Sketch ofsite showln2 house and waste irrigation
system, spray or drip field
, location of wells), and/or other relevant information- SHOW NORTH ARROW)
APS-GPU Regional Staff Report (Sept 09) Page 6 of 6 Pages

AQUIFER PROTECTION SECTION
APPLICATION REVIEW REQUEST FORM
Date: Febrauary 14, 2012
To: ❑
Landon Davidson, ARO-APS
❑
Art Barnhardt, FRO-APS
❑
Andrew Pitner, MRO-APS
❑
Jay Zimmerman, RRO-APS
'ECEIVEfJ
`C '.3eat. of EkR
FEB 5 2012
❑ David May, WaRO-APS
❑ Charlie Stehrnan, WiRO-APS
X Sherri Knight, WSRO-APS
From: David Goodrich, Land Application Unit 2j ❑ 7 - 9 `i y 6
Telephone: (919) 7+0*+,&2 $6 2- L 3S z Fax: (919) 7t56048
E-Mail. [e-mail]
A. Permit Number: WI0400093
B. Owner: Precision Fabrics Group, Inc.
C. Facility/Operation: Precision Fabrics Group Greensboro_ Facility
X Proposed ❑ Existing X Facility X Operation
D. Application:
1. Permit Type: ❑ Animal ❑ Surface Irrigation ❑ Reuse ❑ H-R Infiltration
❑ Recycle ❑ 1/E Lagoon X GW Remediation (ND) 51 Inj. wells
❑ UIC - (5A7) open loop geothermal
For Residuals; ❑ Land App. ❑ D&M ❑ Surface Disposal
❑ 503 ❑ 503 Exempt ❑ Animal
2. Project Type: ❑ New ❑ Major Mad. ❑ Minor Mod. Q Renewal X RenewaI w/ Mad.
E. Comments/Other Information: ❑ 1 would like to accompany you on a site visit.
Attached, you will find all information submitted in support of the above -referenced application for your
review, comment, and/or action. Within 30 calendar days, please take the following actions:
X Return a Completed APSARR Form. - Please comment
❑ Attach Well Construction Data Sheet.
❑ Attach Attachment B for Certification by the LAPCU.
❑ Issue an Attachment B Certification from the RO.*
* Remember that you will be responsible for coordinating site visits and reviews, as well as additional
information requests with other RO-APS representatives in order to prepare a complete Attachment B for
certification. Refer to the RPP SOP for additional detail.
When you receive this request form, please write your name and dates in the spaces below, make a copy
of this sheet, and return it to the appropriate Central Office -Aquifer Protection Section contact person
i sted above.
RO-APS Reviewer: -i Date:
7
FORM: APSARR 07/06 Page 1 of i

10
7
North Carolina Department of Health and Human Services
Division of Public Health - Epidemiology Section
Occupational and En►•iran mentaI Epidemiology Branch
19121 Vlail Service Center • Raleigh, North Carolina 1-7699-19l?
Telephone:[phone] Fax: [phone]
Michael F. Easley, Governox
Dempsey Benton, Secretsuy
January 18, 2008
MEMORANDUM
TO: Qu Qi
Underground Injection Control Program
Agiufer Protection Section
FROM: Luanne K. Williams, Pharm.D., Toxicologist
Medical Evaluation and Risk Assessment Unit
Occupational and Environmental Epidemiology Branch
North Carolina Department of Health and Human Services
Lcah Devlin, DDS, )AP"
State Health Director
SvC - 1
SUBJECT: Use of a Biological Product BAC-9® to Enhance Biodegradation of Groundwater
Contaminated with Chlorinated Compounds
I am writing in response to a request for a health risk evaluation regarding the use of use
of a biolotical product SAC-9 ® to enhance biodegradation of groundwater contaminated with
chlorinated compounds. Based upon my review of the information submitted, I offer the
following health risk evaluation:
PRECAUTIONS DURING APPLICATION
1. The microorganisms in SAC-9'V are naturally found in soil. These microorganisms are not
ordinarily associated with infection in healthy humans (except through an existing wound).
However, these microorganisms may cause infection in the young, the aged, and
immunocompromised such as individuals with AIDS, cancer, hepatitis, or with individuals
following dialysis or surgical procedures, In addition. some of the ingredients within the
BAC-9 V product have been known to cause eye, skin, and lung irritation.
North Corolirro Public Health
Zr,kP —, hea[ihler and vafer Noah Coruliw
EYCryWg rp lre rydAy. [YZryNvdy
Location: 5505 Sir Forks Rat. 3"' Floor, Roam 1-2-DI • Raleigh, NC 27h09
An Equal Oppoduaty Empinyer

2. Also, be aware that mixing potassium with some of the metal and acid ingredients listed in
the product have been reported to be possibly explosive. Care should be taken to review the
MSDS sheets for each ingredient listed to ensure that there would be no explosive hazard.
3. If the products are released into the environment in a way that could result in a suspension of
fine solid or liquid particles (e.g., grinding, blending, vigorous shaking, or mixing), then it is
imperative that proper personal protective equipment be used. The application process
should be reviewed by an industrial hygienist to ensure that the most appropriate personal
protective equipment is used.
4. Persons working with this product should at least wear goggles or a face shield, gloves, and
protective clothing. Face and body protection should be used for anticipated splashes or
sprays. Again, consult with an industrial hygienist to ensure proper protection.
5. Eating, drinking, smoking, handling contact lenses, and applying cosmetics should never be
permitted in the application area during or immediately following application. Safety
controls should be in place to ensure that the check valve and the pressure delivery systems
are working properly.
6. The Material Safety Data Sheets should be followed to prevent adverse reactions and
injuries.
7. Access to the area of application should be limited to the workerss applying the product. In
order to minimize exposure to unprotected individuals, measures should be taken to prevent
access to the area of application.
S. Efforts should be made to prevent contamination of existing or future wells and surface water
that may be located near the application area.
Please do not hesitate to call me if you have any questions at [phone].
cc: Dr. Robert Steffan
Shaw Environmental, Inc.
17 Princess Road
Lawrenceville, NJ 08648
Mr. Gary Birk
Ms. Susan Bostian
EOS Remediation, Inc.
1101 Nowell Road
Raleigh, NC 27607

w ~� IL
North CaroUt12 Department of Health and Hurnart Services
Division of Public Health ■ Epidemiology Section
1912 N129 Service Center + Raleigh, Nora Carolina 2 7699-1912
Tel [phone] a Fax [phone]
Michael F. EaAey, Govcrnar
November 4, 2004
MEMORANDUM
TO: Evan Kane
Underground Injection Control Program
Aquifer Protection Section
FROM: Luanne K. Williams, Pharm.D., Toxicologist U�
Medical Evaluation and Risk Assessment Uni
Occupational and Environmental Epidemiology Branch
North Carolina Department of Health and Human Services
Carmcn !Tooker Odom. Seerceaq
SUBJECT: Use of ABC@ by Redox Tech, LLC and KB-1TM Culture by SiREM Laboratories
and Bio-Dechlor INOCULUM to Enhance Biodegradation of Groundwater
Contaminated with Chlorinated Solvents
I am writing in response to a request for a health risk evaluation regarding the use of
ABCO by Redox Tech, LLC and KB-1 M Culture by Solutions Industrial & Environmental
Services and Bio-Dechlor INOCULUM to enhance biodegradation of groundwater contaminated
with chlorinated solvents. Based upon my review of the information submitted, I offer the
following health risk evaluation:
PRECAUTIONS DURING APPLICATION
1. Some effects or hazards reported to be associated with the chemicals proposed for use are
as follows:
Exposure can cause burns on the skin, eyes, nose and throat and cause dizziness,
lightheadedness, and loss of consciousness. Can be significantly absorbed through
the skin and lungs (New Jersey Department of Health and Senior Services Hazardous
Substance Fact Sheet, Micromedex TOMEs Plus System CD-ROM Database,
Volume 62, 2004).
The chemical is highly flammable. It will be easily ignited by heat, sparks, or flames.
Vapors may form explosive mixtures with air. Vapors may travel to source of
ignition and flash back. The vapors will spread along ground and collect in low
confined areas (sewers, basements, and tanks). The storage containers for the
chemical should be kept well closed. Runoff to sewer may create fire or explosion
hazard. Containers may explode when heated (Hazardous Substances Data Bank
Micromedex TOMES Plus System CD-ROM Database, Volume 62, 2004).
I* Lrxaoon: 2728 Capital Boulevirci 9 Parkcr Lincoln Building 6 Ralugh, N.C. 27604 An Equal Clppom pity Employer

Precautions should be taken to prevent explosions to protect on -site workers,
nearby residents, and off -site workers.
Liberates toxic hydrogen sulfide on contact with acids. Reacts violently with carbon,
diazonium salts, n-dichloromethyiamine; o-nitroaniline diazonium salt, and water.
Based on testing and method used to produce the microorganisms (grown in a mineral
salt medium), the microorganisms are not likely to be pathogenic. These
microorganisms are not ordinarily associated with infection in healthy humans
(except through an existing wound) (Madigan MT, Martinko JM, and Parker Jack
2003. Brock Biology ofMicroorgan isms, Tenth Edition. Pearson Education, Inc.).
However, these microorganisms may cause infection in the young, the aged, and
immunocomprom.ised such as individuals with AIDS, cancer, hepatitis, or with
individuals following dialysis or surgical procedures. In order to provide an
additional margin of safety, it is recommended to maintain an aerobic zone around the
treatment zone, which should minimize the survival of the obligate anaerobes outside
the treatment zone.
2. If the products are released into the environment in a way that could result in a
suspension of fine solid or liquid particles (e.g., grinding, blending, vigorous shaking or
mixing), then it is imperative that proper personal protective equipment be used. The
application process should be reviewed by an industrial hygienist to ensure that the most
appropriate personal protective equipment is used.
Persons working with this product should at least wear goggles or a face shield, gloves,
and protective clothing. Face and body protection should be used for anticipated splashes
or sprays. Again, consult with an industrial hygienist to ensure proper protection.
4. Eating, drinking, smoking, handling contact lenses, and applying cosmetics should never
be permitted in the application area during or immediately following application. Safety
controls should be in place to ensure that the check valve and the pressure delivery
systems are working properly.
The Material Safety Data Sheets should be followed to prevent adverse reactions and
injuries.
6_ Access to the area of application should be limited to the workers applying the product.
In order to minimize exposure to unprotected individuals, measures should be taken to
prevent access to the area of application.
7. According to the information submitted, the area is served by a public water supply.
Based upon injections of the product at several sites, the approximate maximum distance
of travel is estimated to be 25 feet. Two unnamed tributaries to Belmont Lake are located
approximately 100 feet from the pilot test injection area. Belmont Lake is located
approximately 130 feet downstream of the full-scale injection. Due to the shallow depth
to groundwater at the injection site, it is possible that the injected fluid could migrate into
the unnamed tributaries to Belmont Lake. Nearest residence is greater than 1,500 feet and
nearest workplace is 600 feet. Because of the potential risks associated with the use of

this product and the proximity of supply wells and surface waters, efforts should he
made to prevent contamination of existing or future wells and nearby surface waters
near the application area.
Please do not hesitate to call me if you have any questions at [phone],
cc: -Mr. Mike Ranck, Underground injection Control Program, Aquifer Protection Section
-Mr. Jerry Prasser, ERM NC, PC, 8000 Corporate Center Drive, Suite 200
Charlotte, NC 28226
-Mr. Bob Gorham, The Tuscarora Corporation, 2442 Sunset Avenue
Rocky Mount, NC 27804
-Mr. David Sordi, Ingersoll-Rand, 70 North Street, Torrington, CT 06790
-Mr. John Haselow, Redox Tech, LLC, 1006A Morrisville Parkway
Morrisville, NC 27560
-Mr. Phil Dennis, Operations Manager, SiREM Laboratories, 130 Research Lane, Suite 2,
Guelph, Ontario Canada, N I G 5G3

North Carolina Department of Health and Human Services
Division of Public Health + Epidemiology Section
1912 Mail Service Center • Raleigh, North Carolina 27699-1912
Tel [phone] • Fax [phone]
A{ichad F. 1:.1'lLv, Governin
March 8, 2007
MEMORANDUM
r 13111]1111 f Ionker Odom. Secretafy
RECEIVED ! DEHR, D'AQ
AQUIPPR PPnTcr'T1CjN �FC710N
TO: QU Q1 N1MIR 16 2007
Underground Injection Control Program
Aquifer Protection Section
FROM: Luanne K. Williams, Pharm.D., Toxicologists
Medical Evaluation and Risk Assessment Unit
Occupational and Environmental Epidemiology Branch
North Carolina Department of Health and Human Services
SUBJECT: Use of non -biological products magnesium hydroxide and calcium carbonate to
increase the pH of groundwater at the Southern States Chemical Company in
Wilmington, NC
l am writing in response to a request for a health risk evaluation regarding the use of non -
biological products including magnesium hydroxide and calcium carbonate to increase the pH of
groundwater at the Southern States Chemical Company in Wilmington, NC. Based upon my
review of the information submitted, I offer the following health risk evaluation:
Some effects or hazards reported to be associated with the chemicals proposed for use are
as follows:
Exposure can cause irritation of eyes, nose, throat and skin as well as nausea,
vomiting, hypotension, ECG changes, CNS depression, respiratory depression and
paralysis (Micromedex TOMEs Plus System CD-ROM Database, Volume 71, 2007).
If the products are released into the environment in a way that could result in a
suspension of fine solid or liquid particles (e.g., grinding, blending, vigorous shaking or
mixing), then proper personal protective equipment should be used. The application
process should be reviewed by an industrial hygienist to ensure that the most appropriate
personal protective equipment is used.
Persons working with this product should at least wear goggles or a face shield, gloves,
and protective clothing. Face and body protection should be used for anticipated splashes
or sprays. Again, consult with an industrial hygienist to ensure proper protection.
l.�,raunn: 75❑5 tiix Fs,rlaa ltn,i�1, yi.t lQut�r, itc,rtm Dl ■ Ra10g1k, \ G ?7609 Ali lignal Oplitsrnuiity I'm ployer

4. Eating, drinking, smoking, handling contact lenses, and applying cosmetics should never
be permitted in the application area during or immediately following application. Safety
controls should be in place to ensure that the check valve and the pressure delivery
systems are working properly.
The Material Safety Data Sheets should be followed to prevent adverse reactions and
injuries.
G. Access to the area of application should be limited to the workers applying the product.
In order to minimize exposure to unprotected individuals, measures should be taken to
prevent access to the area of application.
According to the information submitted, the Southern States Chemical Company is
currently using bottled water but has five water supply wells located 2,000 feet from the
proposed injection area. These supply wells are currently being used to process, toilet
flushing, and hand washing. During the injection period and prior to confirmation
sampling that the drinking water is safe, it is recommended to not use the groundwater for
drinking or cooping at the site. Once it is determined that the pH is between 6.5 to 8.5
then, drinking water samples should be collected from these water supply wells. These
samples should be analyzed for contaminants of concern in soil and groundwater and pH
should be tested as well. If these wells are to be used for drinking or cooking, please
forward the results of this sampling to me so a drinking water health evaluation can be
done. The levels found will be compared to our health -based drinking water levels or
North Carolina Public Health Goals.
S. According to the information submitted, a county raw water line passes the site along US
Highway 421. Measures should be taken to prevent the contaminants found in soil and
groundwater from contaminating this water line or any private or public water supply
wells. Also, the ea.stem portion of the site is adjacent to the northeast Cape Fear River.
Measures should be taken to prevent contamination of this water body.
Please do not hesitate to call me if you have any questions at [phone].
cc: Mr, Joseph Rossabi, Redox Tech, LLC, 200 Quade Drive, Cary, NC 27513
Mr. Barry Culp, RMT North Carolina, Inc., 30 Patewood Drive Suite 100, Patewood
Plaza One, Greenville, SC 29615-3535

RECEIVED i DEAR I DWQ
AQUIFFR ppnYFrr+nnl RFC110M
North Carolina Department of Health and Human Sery icE-MAY 1) 5 2009
Division of Public Health a Epidemiology Section
Occupational and Environmental Epidemiology Branch
1912 Mail Service Center. Raleigh, North Carolina 27699-1912
Tel [phone]Q • Fax [phone]
Beverly Eaves Perdue, Governor
L =-er IYL Cmsler, Secretary
April 30, 2009
MEMORANDUM
TO: Thomas Slusser
Aquifer Protection Section
Division of Water Quality
FROM: Kenneth Rudo, Ph.D. Toxicologist �4m t'
MERA/OEEB
Division of Public Health
THROUGH: Mina Shehee, Ph.D, Supervisor
MERAIDEEB 0
Division of Public Health
Jeffrey P. Engel, NLD.
State Health Director
SITB.IECT: Health Risk Evaluation
Groundwater Remediation Using Sodium Hydroxide and Calcium Chloride
This review is provided in response to a request for a health risk evaluation
regarding the use of sodium hydroxide and calcium chloride. These compounds are to be used to
enhance the remediation of groundwater contaminated with hydrofluorosilicic acid. The
following information is provided regarding precautions during use:
1) Sodium Hydroxide — chemical is hazardous in cases of ingestion, inhalation, skin and eye
contact and may be an irritant or corrosive. The amount of damage depends on length of
contact. Skin contact can produce inflammation and blistering characterized by scaling,
redness, itching and occasionally, blistering. Eye contact may produce inflammation
characterized by redness, watering and itching and severe contact may result in blindness
or corneal damage. inhalation may produce irritation to the respiratory and GI tract and
severe exposure may result in lung damage, choking or death. Please see the instructions
in the MSDS sheet for this chemical in regards to first aid treatment if exposed and the
exposure controls and personal protection when using sodium hydroxide.
2) Calcium Chloride — chemical may cause irritation from eye contact, may be a skin irritant
characterized by scaling, itching, reddening and occasionally blistering. May be hazardous
upon ingestion and inhalation exposure. Please see the instructions in the MSDS sheet for
this chemical in regards to exposure controls and personal protection when using calcium
chloride.
kunh CPali dyHrslile
Vaddrg fa,,hrakbwm"d S4FCr North Caroiino
Erc�Tw}Ne. EVeryeliy. Ewg6ady.
Location. 5505 Six Forks Road, 2'j Floor, Room ❑-1 • Raleigh, N.0 27609

RECENED I DENR I DWQ
AQU{Er-R-vRnrFr.TjrW sFirTION
MAY 4 v 2909
3) For both chemicals store and use in well ventilated areas. Do not store near heat, spark, or
flame. To minimize exposure access to the area of mixing and application should be
limited to those required to work with the 2 chemicals. All persons involved in the
handling and use of these 2 chemicals should be familiar with the MSDS information and
the information in this memo. Please see the MSDS sheet for both chemicals in regards to
first aid measures to take upon exposure.
4) Eating, drinking, smoking, handling contact lenses, and applying cosmetics should never
be permitted in the application area during or immediately following application. After
handling, wash hands and face thoroughly with soap and water before eating, drinking or
smoking.
5) Based on the information provided by Mr.Slusser on the use of these chemicals in the
remediation process, well water contamination should not be expected in a manner that
would pose an increased health risk upon personal well water use. However, measures
should be taken to better identify any nearby private drinking water wells based on the
incomplete information provided to OEEB. In the event that wells are found within 500
feet of the remediation area, steps should be taken to prevent contamination of these nearby
wells.

Central Filas: APS SWP
02/14/12
Permit Number W10400093 Permit Tracking Slip
Program Category Status Project Type
iJl Vtii.0 Vvi_kUi .,. IL:I._... -Ili i, IIIG�v,J4 f.iii4
Permit Type Version Permit Classification
Injection In situ Groundwater Remediation Well (51) Individual
Primary Reviewer Permit Contact Affiliation
david.goodrich Beau Fudge
Coastal SW Rule
Permitted Flow
Facili
Facility Name
Precision Fabrics Group, Inc. Greensboro Facility
Location Address
301 E Meadowview Rd
Greensboro NC 27406
Owner
Owner Name
Precision Fabrics Group Inc
Dates/Events
Scheduled
Orig Issue App Received Draft initiated Issuance
03/20/08 02ro2/12
Regulated Activities
Groundwater remediation
Outfall NUU
G M P R S
1130 Situs Ct
Raleigh NC 27606
MajorfMinor Region
Minor Winston-Salem
County
Guilford
Facility Contact Affiliation
Owner type
Non -Government
Owner Affiliation
Lee Aike n
301 Meadowview Rd
Greensboro
Public Notice Issue
NC 27406
Effective Expiration
Requested/Received Events
RO staff report received ^�
RQ staff report requested
Waterbody Name Stream index Nuinbet Current Class Subbasin

DOCUMENTS
ASSOCIATED WITH THE
ORIGINAL PERMIT
APPLICATION
(MARCH 20,2008)

[Fwd. Re: [Fwd: REC Project Audits - Preci---- Fabrics Group & 0...
Subject: [Fwd: Re; [Fwd: REC Project Audits - Precision Fabrics Group & Overcash Machine Shop]]
From: Stephen Berry <Steplien.BerryCilcmail.net>
Date: Mon, 1 I Feb 2008 09:24:24 -0500
To: Qu QI <QU.QICa ncmail.net>
Ott Oi,
Here is the information I spoke about;
------- Original Message ---- ----
Subject:Re: [FNN,d: REC Project Audits - Precision Fabrics Group & Overeash Machine Shop]
Date:Thu, 07 Feb 2008 13:37:25 -0500
From:Kim T. Caulk <Kim.Caulk a ncmail.net>
To: Stephen. Berry(g)Wmai I.net
References:<47A7224A.3040603(a),ncntai 1.net>
Stephen:
The meeting is scheduled for Wed., Feb. 20 at 10 am. I have a meeting, wl other Superfund Section
folks to discuss the situation on 2112 at I pm. No rush, but when you get a chance, give me a call and
we can discuss things as well.
Kim
Kim T. Caulk wrote:
Stephen:
Last Friday, I forgot to copy you on the a -mail (below) that was sent to the REC regarding the
project audit for the above sites. i ant waiting on them to set up a meeting to discuss the audit
findings. When I hear back from thent and a meeting is scheduled. I will let you know so we Cali
touch base.
Kiln
_w_--- Original Message--------
Subject:REC Project Audits - Precision Fabrics Group & Gvercash Machine Shop
Date:Fri, 01 Feb 2008 09:40:42 -0500
From, -Kim T. Caulk <Kim.Caulk(q?ncmaii.net>
To: Mark Brown <smbrown pmecslimited.com>, Stephen Gosselin
<sgosselin rr,ecslimited.com>
Mr. Brown & Mr. Gosselin:
i of5 2/11/2008 10:27 AM

[Fwd: Re: 1Fwd: REC Project Audits - Prec"-- Fabrics Group & ❑...
have completed my review of your responses to the REC Project Audits for the Precision Fabrics Group
Site and the Overcash Machine Shop Site. Be aware that the Branch has not made any final decisiom
regarding the audit findings. The following comments to your responses are provided:
Precision Fabrics Grou
l . Item 1 of your December 12, 2007 response to my November 13. 2007 project audit letter
states "ECS accepted the Remedial Action plan (RAP) prepared at the time by PBA and
:acknowledged that at some time in the future, the source areas and off -site contamination would
have to be addressed". At the time ECS agreed to implement the RAP as it was designed, 1
cannot find any indication or acknowledgment that the source area and off -site contamination was
to be addressed. The RAP that ECS reviewed and agreed to implement only discusses
remediation of contamination at the site boundary. After I mentioned this concern during our -
May 2, 2005 meeting, ECS indicated in a June 10, 2005 ECS letter that the source area would be
addressed. Furthennore, the rest of the plume is not mentioned. The REC Rules require the RSM
to ensure a certified RAP is prepared that demonstrates the planned remedial action will nicet
itGs for the entire plume, which includes the source area, contamination at the site boundary-.
contamination between the source area and the site boundary, and off -site contamination. I
cannot find a certified RAP or certified RAP Addendum in the public file that meets this
requirement.
2. Item 2 of your response states "laboratory analysis of the soil samples did not detect targeted
compounds above the Inactive Hazardous Sites Branch Remediation Goal (RG)". Be aware there
Lire two remedial goals for soil, which are the "health -based" RG and the "protection of-
-groundwater" RG_ Therefore, for this statement you need to clarify which RG was not exceeded.
,Nlso, there seems to be conflicting infortnation between the November 17, 2000 RI Report and
the January 8, 2002 RAP and your comments regarding the soil contarination above RGs. 'ro
support your conclusions, you need to provide a table that summarizes the soil sample location
and depth and the soil contaminant concentrations for all of the field and laboratory data
performed for the soil investigation, a site map showing the soil sample locations, and appropriate
cross -sections of the soil contamination with respect to the: water table. This information needs to
clearly indicated the location of residual soil contaminant concentrations (in mg/kg) for both
inetals and organics that exceeded values of 20 times the corresponding groundwater remediation
_Foals (in mg/1) as discussed in the REC Program Implementation Guidance and the location of the
tramples that were found to be leaching contaminants based on the TCLP analyes. The
information also needs to indicate the location of soil contamination in excess of "health -based"
RGs.
3. The AA for the Precision Fabrics Group Site was executed on November 18, 1997.
therefore, all source areas should have been fully defined so that all non -groundwater
retnediation, which includes soil contamination and DNAPLs, could be completed by November
18, 2005 as required by the REC Rules.
4. The RSM approved, certified January 8, 2002 RAP that is in the public file included plans for
geophysical surveys and packer tests to evaluate bedrock fractures at the injections wells.
Therefore, performance of these surveys and tests should have been addressed because they were
part of the approved remedy. Be aware that the Underground Injection Control (UIC) Prograrn
has asked the REC Program for this data as part of their review of the UIC permits that you are
still requesting.
u 2/11/2008 10:27 AM

1Fwd; Re: [Fwd: REC Project Audits - Preci—'^^ Fabrics Group & 0...
5. Comments 5 and 6 of my November 13, 2007 letter concerned the delays inn submitting a
prc-construction report , failure to submit a construction completion report, the delays in obtaining
UIC permits, and failure to implement full groundwater remediation. The Administrative
lgreement (AA) was executed on November 18, 1997, and, therefore, in accordance with the
REC Rules, full groundwater remediation should have been initiated within 2 years of completion
of the remedial investigation (based on the RI completion for this site no later than November 18,
2002). 15A NCAC 13C .0306(b)(4)(C) and .0306(b)(5)(p) of the REC Rules also require a
lire -construction report and construction completion report be prepared and certified prior to full
iill plern entation of groundwater remediation. On November 21, 2002 a letter was issued from the
Branch (J. Powers to S. Gosselin) providing concurrence that ECS had met deadline for
implementation of groundwater remediation because the groundwater remediation pilot study had
begun. The letter also reminded ECS that the above documents were due prior to full
implementation of groundwater remediation_ Over five years have passed since the Branch issued
kite November 21. 2002 letter. Therefore, please review the November 21, 2002 letter, the
deadline requirements established in the executed AA for implementation of groundwater
cmediation, and the documents required by the REC Rules and provide your interpretation of
when full groundwater remediation was to be initiated and when the above required documents
were to be submitted to the Branch.
0. Your responses to comments 7 & 8 of my November 13, 2007 letter have been reviewed. I
have no further comments.
Overcash Machine Shop
1. Section 111. paragraph B of the .tune 9, 2006 Administrative Agreement states "the
Remediator shall submit quarterly letter progress reports on or before the 15th day of January,
April, July, and October of each year that this Agreement is in effect." My November 14, 2007
utter stated "review of the Fite indicates no quarterly status reports have been received since the
V\ was executed, since my October 18, 2006 Warning of Violation letter was issued, or since the
.tune 14, 2007 letter was received from ECS. Subsequently, on November 27, 2007, 1 received a
document (Remedial Investigation Work Plan and Report), but no explanation as to why quarterly
status reports were not submitted as required by the AA.
?. The R1 workplan portionof the document received November 27, 2007 does not include
certification in accordance with .0306(b).
�. The RI work plan portions of the document received November 27, 2007 does not include all
of the components required by .030G(g).
4. The document received November 27. 2007 appears to include a remedial investigation (RI)
report and includes site assessment activities performed in May 2007, prior to submittal of a
certified RI work plan to the Branch. Pursuant to 15A NCAC 13C .0306(b)(4)(A), RSM
certification of remedial investigation work plans prepared in accordance with Paragraph (g) shall
occur rp i r to implementation.
5. The RI Report included in Appendix E of the RI Work Plan does not include all ol- thc
3 of 4 2/11/2008 10:27 AM

[Fwd: Re: [Fwd.- REC Project Audits - Preci-inn Fabrics Group & 0_
components required by .0306(h).
6. The Letter of Transmittal with the document received on November 27, 2007 includes a
request for an "expeditious review of the report". Apparently, this request was made in an effort
to have the Site closed by the Branch. For sites in the REC Program, the Branch does not review
these documents unless a technical audit is perforated. The procedures for submitting RSM
certified RI reports and completion statements are discussed during REC training and are
included in the REC Program Implementation Guidance. In the REC Program, a "no further
action" (NFA) is only issued after receipt of a Remedial Action Completion Report that includes
a Remedial Action Completion Certification statement from the RSM. The Remedial Action
Completion Report must clearly demonstrate the site cleanup has been completed and specific
cleanup levels have been achieved, For sites that undergo rernediation, a letter requesting an NFA
determination is also required in accordance with 130A-310.7(c).
I t1t, i i a i c indicated that ECS would like to have a meeting to discuss the prejcct audits. I meeting is
held, I would give a brief overview of the REC; Program and you would then have an opportunity to
discuss any or all of the above comments and potential REC Rule violations and provide any additional
int0rmation that you may have, Please call me as soon as possible if you still request a meeting.
Regards,
Kim T. Caulk, P.G.
Inactive Hazardous Sites Branch - REC Program
NCDENR - Division of Waste Management
401 Oberlin Road, Suite 150
Raleigh, North Carolina 27605
Phone: [phone]
Fax: [phone]
e-mail: kim.caulkCncmail.net
Kim T. Caulk, P.G.
Inactive Hazardous Sites Branch - REC Program
NCDENR - Division of Waste Management
401 Oberlin Road, Suite 150
Raleigh, North Carolina 27605
Phone: [phone]
Fax: [phone]
e-mail: [e-mail]
Stephen Berry
NC DENR
Winston-Salem Regional office
Division of Water Quality, Aquifer Protection Section
585 Waughtown Street
Winston-Salem, NC 27107
4 of 5 2/11/2008 10:27 AM

North Carolina
Dexter R. Matthews, Director
November 13, 2007
Mr, Stephen J. Gosselin
ECS Carolinas, LLP
8702 Red oak Boulevard, Suite A
Charlotte, North Carolina 28217
FMA
NCDENR
Department of Environment and
Division of Waste Management
Re: REC Project Audit
Precision Fabrics Group, Inc.
Greensboro, Guilford County, NC
Site ID No.: NONCD 000 1020
Dear Mr. Gosselin:
Natural Resources
Michael F. Easley, Govemor
William G. Ross Jr., Secretary
I am in the process of performing a technical audit of the project files and associated reports that have been submitted by ECS
Carolinas, LLP (ECS) to the Registered Environmental Consultant (REC) Program of the Inactive Hazardous Sites Branch
(Branch) for the Precision Fabrics Group (PFG) Site (Site). Be aware that I am not familiar with all technical aspects of the REC
Program projects because oversight of the remedial activities is the responsibility of the Registered Site Manager (RSM). My
review thus far has identified potential REC Rule violations for the Site. In order for me to complete this review, please provide any
responses that you may have to the following comments:
On May 5, 2005, 1 sent a letter to you regarding the project status and potential REC Rule violations that we had discussed
during our May 2, 2005 meeting. Page 19 of the January 8, 2002 RECIRSM approved remedial action plan (RAP) states "the
objective of the remedial action is to provide on -site containment of the solvent contaminated groundwater ...... the preliminary
remediation goal is to significantly reduce the contaminant concentrations of the ground water leaving the PFG site and the
ultimate goal is to reduce the contaminant concentrations to a level that meets current guidelines." In addition, a February 22,
2002 ECS letter states "based on our review of the RAP, ECS agrees to implement the remedial action as proposed". Item 1
of my May 5, 2005 letter requested you to explain how the planned remedial action for all of the contaminated soil and
groundwater will provide protection of human health and the environment, including the attainment of cleanup levels as
required by 15A NCAC 13C .0306(l)(3)jA) and as further discussed in the REC Program Implementation Guidance
(Guidance). Your June 10, 2005 response states "ECS again agrees to implement the proposed remedial action as stated in
the RAP, and concurs that the proposed remedial technology will be an adequate, in -situ method to remediate impacted
groundwater and in turn will aid in the protection of human health and the environment. it should be noted that no receptors
have been identified as a result of the past releases at the PFG property. There are no groundwater intakes in the
surrounding area. The only deviation from the original remedial design that ECS and PFG would recommend is groundwater
remediation in the source area in conjunction with the barrier wall configuration near the property boundaryYour June 10,
2005 letter further states "it was understood that the remedial action which was proposed (HRCTM injection for groundwater
remediation only in a barrier wall configuration) was a sufficient means to remediate impacted groundwater beneath the site, in
conjunction with containing impacted groundwater to the subject site". Be aware that the entire groundwater contaminant
plume must be remediated to meet the water quality standards of 15A NCAC 2L. Neither the REC approved RAP, which ECS
agreed to implement, nor your June 10, 2005 response explain how the remedial goals of the entire groundwater contaminant
plume, particularly at the general source area and the area between the general source area and the Site boundary, will be
met nor does the RAP or response demonstrate how human health and the environment will be protected using the selected
remedial altemative. In addition, receptors have no bearing on whether or not the remedial goals for the groundwater must be
met.
1646 Mail Service Center, Raleigh, North Carolina 27699-1646
Phone [phone] FAX [phone] I Internet http:llwastenotnc.org
An Equal Opportunity I Affirmative Action Employer - Printed on Dual Purpose Recycled Paper

ECS1Precision Fabrics Group Site
REC Project Audit
November 13, 2007
Page 2
Your June 10, 2005 letter states "with regard to the soil contamination identified at the subject site, which is located either
beneath the building or is capped with concrete andlor asphalt, ECS agrees .... that no remediation of the soil is necessary
Your June 10, 2005 letter also states "the average depth of groundwater beneath the site is 25 to 30 feet bgs. It is not
practical to believe that limited extent of soil contamination is contributing to the impacted groundwater in a 'source area"
manner. Furthermore, it is not feasible nor cost effective to attempt to remediate impacted soils given the extensive
groundwater remediation that will occur in the vicinity of the soil contamination (impacted groundwater source area) as well as
downgradient of the soil contamination (barrier wall)", According to Section 2.6.1 of the January 8, 2002 RAP, contaminants
were detected in several soil samples at concentrations that were 20 times the groundwater remedial goals. The RAP also
indicates that two soil samples were tested using TCLP analyses and found to be leaching contaminants to groundwater. In
addition, the fact that groundwater is already contaminated is an indication that contaminants have leached into the
groundwater and "protection of groundwater' remedial goals for soil have been exceeded. Therefore, it appears that the
remedial alternative selected for the soil contamination will not meet the soil remedial goals as it is proposed. According to
15A NCAC 13C .0308(a), it is the RSM's responsibility to ensure that the Department's cleanup standards for all media are
met when a remedial action plan is approved by the RSM. The procedures for establishing remedial goals are provided in
Appendix D of the REC Program Implementation Guidance. Furthermore, in accordance with 15A NCAC 13C .0306(1), the
RSM is required to prepare and certify a RAP that ensures all sources of contamination, including contaminated soil and any
dense non -aqueous phase liquids (DNAPLs), are remediated and remedial goals for all media are met. As indicated in the
REC Program Guidance, the only exception to meeting "protection of groundwater clean up standards is for the REC to
demonstrate that it is technically impracticable to meet these standards. Any technical impracticability case that would leave
contamination in place and is taus a containment remedy requires our concurrence per 15A NCAC 13C .0306(i), It is the
RSM's responsibility to ensure a complete RAP is prepared and concurrence is obtained.
3. The Branch is concerned that the contaminant source area(s) has not been completely identified. Contaminated soil exists at
the Site, no active soil remediation appears to have been performed at the facility, and the average depth to groundwater
beneath the Site is between 25 and 30 feet below ground surface. This would indicate that there could be significant
contamination within the soil column (the vadose zone/soil above the water table), which is contributing to the groundwater
contamination. In addition, the concentrations of chlorinated solvents in the groundwater, which are several orders of
magnitude higher that the 15A NCAC NC 2L groundwater quality standards, suggest that DNAPLs may be present beneath
the Site. Information received from the Division of Water Quality indicates the issue regarding DNAPLs has been and
continues to be a major concern of the Underground Injection Control (UIC) Program as well. Therefore, knowing that soil
contamination exists above the water table and given the size of the groundwater contaminant plume (over 1,150 feet long by
525 feet wide) and the contaminant concentrations in the groundwater, it is likely that a specific source area has not been
identified. In accordance with 15A NCAC 13C .0306(e) and (f), it is the RSM's responsibility to ensure that all source areas of
contamination have been identified and the extent of contamination in each media is fully defined so an appropriate remedial
alternative can be chosen.
The January 8, 2002 RAP proposed geophysical surveys and packer tests to evaluate bedrock fractures at the injection wells
that were installed for a pilot test at the Site. These surveys and tests can be and typically are beneficial to gain a better
understanding of subsurface conditions for the final remedial design. However, based on correspondence submitted since the
RAP was approved, either the geophysical surveys and packer tests were not included in the Preconstruction report required
by 15A NCAC 13C .0306{m) or no information has been provided for the public record to explain why the surveys tests were
not conducted even though they were proposed in the approved RAP.
Item 3 of my May 5, 2005 letter requested information regarding why no preconstruction report was submitted for
approximately 2.5 years following implementation of a groundwater remediation pilot study, which began November 2002.
The Branch wanted to know the reason for the delay because, according to the schedule in the RAP, submittal of the
preconstruction report was anticipated within 6 to 8 months after the pilot study began and a construction completion report
was anticipated approximately 11 months after the pilot study began. You were reminded of these reporting requirements in a
November 21, 2002 letter from the Branch. To date, no explanation for the delay in submitting the preconstruction report has
been provided and a construction completion report for full implementation of groundwater remediation as required by 15A
NCAC 130 .0306(n) still has not been received 5 years after the pilot study began.
6. Following my May 5, 2005 letter regarding concerns about the project status, a certified Report of Reductive Dechlorination
Pilot Testing document (Pre -construction Report) with Remedial Design Completion Certification was received on ,tune 28,
2005. The report recommended additional injection activities and expanding the remedial actions to include the general

ECS/Precision Fabrics Group Site November 13, 2007
REC Project Audit Page 3
source area in addition to the Site boundary. However, according to a progress report received December 21, 2005, a LAC
permit was not requested from the UIC Program until October 18, 2005 four months following submittal of the Preconstruction
Report. In addition, in a February 15, 2006 letter, the UIC Program requested additional groundwater monitoring data for a
UIC permit application from ECS. According to your progress report received April 13, 2006, the groundwater sampling
requested by the UIC Program was not scheduled until May 2006. The file indicates that it was September 13, 2006 before a
report of findings was prepared. Delays such as these could add up and not only reduce the effectiveness of the remedial
efforts already initiated at the Site boundary, but also lead to violations of the REC Rule deadlines of 15A NCAC 13C .0302(h),
Explanation is needed for the delays in requesting the U1C permit and performing the needed groundwater sampling.
7. As indicated in my May 5, 2005 letter, remedial action progress reports are required following implementation of groundwater
remediation on a quarterly basis, and all progress reports must be certified and include the document components required by
15A NCAC 13C .0306(o). Your June 10, 2005 letter states "ECS acknowledges that we did not submit quarterly reports
following the post HRCTM injection episodes Subsequent to that acknowledgement, progress reports were received
December 21, 2005, April 13, 2006, and September 18, 2006. This schedule still was not quarterly. In addition, review of
these three reports and progress reports subsequently received by the Branch on February 5, 2007 and May 4, 2007 indicates
none of the reports include the components required by 15A NCAC 13C .0306(o).
8. According to the REC Administrative Agreement that was executed on November 21, 1997, the commencement of the
implementation of groundwater remediation was due November 18, 2002. We met on May 2, 2005 to discuss the Branch's
concerns regarding the remedial efforts at the Site and compliance with the REC Rules. Review of information submitted to
this office indicates groundwater remediation still has not been fully implemented and required documents have not been
received on schedule and those that have been submitted are incomplete. No explanation has been provided.
Finally, your June 10, 2005 response letter indicates "through several correspondences and telephone conversations with John
Powers of the NCDENR all parties were in agreement with the Remedial Action Plan (RAP)". We find no correspondence in our
files to suggest the Branch agreed with the RAP. As indicated in the REC Program Guidance, explained during REC training, and
required by the REC Rules, certification, approval, and implementation of a RAP is the responsibility of the RSM. The Branch
does not approve RAPS for Sites undergoing remediation in the REC Program. The Branch only becomes familiar with the
technical aspects of an REC project when an audit is performed.
Please provide any responses that you may have to the above itemized issues by December 13, 2007, If you have any questions
or would like to have a meeting to discuss this letter and the project, please contact me at [phone].
Sincerely,
Kim T. Caulk
REC Program
Inactive Hazardous Sites Branch
Superfund Section
cc: Mr. Mark Brown, ECS
Mr. Wallace Kale, Precision Fabrics Group
Mr. Peter Pozzo, UIC Program

Y
DIVISION OF WATER QUALIT
AQUIFER PROTECTION SECTION
March 20, 2008
MEMORANDUM
TO: DEBRA WATTS —�
2�
FROM: QU QI
RE: Recommendation for the Issuance of UIC Permit WI0400093
I have reviewed the subject permit application, and I am recommending the permit be issued with
the following comments:
1. Site Overview: Groundwater at the site is impacted by chlorinated solvents, primarily
trichloroethene (TCE) and tetrachloroethene (PCE). The groundwater contamination
occurred in both saprolite aquifer and bedrock aquifer. The proposed injection area is
near property line — down gradient from the source area. The source area remediation is
going to be separated under another permit. The previous pilot test was to inject HRC in
November 2002 under UIC permit WI0400028. After the injection, favorable
geochemical conditions were observed, but the reduction of contaminant concentrations
was not observed, probably because of missing monitoring events and low injection
dosage. Site geology: Soils encountered at the site are generally saprolite (30 to 45 feet
thick) made of clay, clayey silt, sandy silt and silty sand. Sand content increases with
depth. Below the saprolite is the partially weathered rock with a thickness about 30 to 50
feet. This layer is underlain by bedrock which is mainly metamorphosed granodiorite or
granite. The groundwater table varies from 20 feet to 30 feet below the grade across the
area.
2. Injection: The proposed injectant is HRCTM to stimulate in situ biodegradation. The
dosage is increased from the pilot test. The proposed injection will occur in forty four
injection wells: twenty two of them are shallow wells (8 to 16 feet) and twenty two are
deep wells (16 to 20 feet). A total of 3000 gallons of HRC will be applied during first
injection event and 1600 gallons for the second event six months later.
3. Monitoring: Total of forty monitoring wells will be sampled quarterly for VOC,
metabolic acids, alkalinity, CO2, chloride, nitrate, ferrous iron, dissolved total iron,
manganese, sulfide and total organic carbon.
4. Epidemiology: Dr. Luanne Williams provided a risk evaluation of HRC, and did not
identify any risks that would prohibit injection.
5. Regional Office Comments: The Winston-Salem Regional Office provided a review of
the application and site inspection and raised the concern about the bedrock injection.
The injectant HRC does not require to be diluted and therefore the total volume of the

injectant is small knu chasing water is needed). The poten..... of pushing contaminants
further away from the site is very low. l have explained this to the regional staff and did
not receive any further comments.
Please let me know if you have any questions, comments, or concerns about issuing this
permit.

AQUIFER PROTECTION REGIONAL STAFF REPORT
Date: 02/04/2008
To: Aquifer Protection Central Office
Central Office Reviewer: Ou Oi
Regional Login No:
County: Guilford
Permittee: Precision Fabrics Group, Inc
Project Name: Precision Fabrics Group, Inc
Application No.: WI0400093
I. GENERAL INFORMATION
1. This application is (check an that apply): ® New ❑ Renewal
❑ Minor Modification ❑ Major Modification
❑ Surface Irrigation ❑ Reuse ❑ Recycle ❑ High Rate infiltration ❑ Evaporation/Infiltration Lagoon
❑ Land Application of Residuals ❑ Attachment B included ❑ 503 regulated ❑ 503 exempt
❑ Distribution of Residuals ❑ Surface Disposal
❑ Closed -loop Groundwater Remediation ® Other Injection Wells (including in sim remediation)
Was a site visit conducted in order to prepare this report? ® Yes or ❑ No.
a. Date of site: visit: 0112912IX18
b. Person contacted and contact information: Randy Cavallier, ECS Carolina. LLP ; 336-856-7154
c. Site visit conducted by: Stephen Berry & Shuying Wang
d. Inspection Report Attached: ❑ Yes or ® No.
2. Is the following information entered into the BIMS record for this application correct?
® Yes or ❑ No. If no, please complete the following or indicate that it is correct on the current application.
a. Location(s): 30I E. Meadowview Road
b. Driving Directions: From WSRO, I44W: Exit S Elm -Eugene St, Turn North: Turn East on E Meadowview
Rd: Facility on North side of road.
c. USGS Quadrangle Map name and number: UNKNOWN
d. Latitude: 36.039776 Longitude: 79.7852
IV. INFECTION WELL PERMIT APPLICATIONS (Complete these two sections for all systems that use injection
wells, including closed -loop groundwater remediation effluent injection wells, in situ remediation injection wells, and heat
pump injection wells,)
Description Of Well(S) And Facilities — New, Renewal, And Modification
1. Type of injection system:
❑ Heating/cooling water return flow (5A7)
❑ Closed -loop heat pump system (5QM15QW)
® In situ remediation (5I)
❑ Closed -loop groundwater remediation effluent injection (5LP'Non-Discharge")
❑ Other (Specify:
2. Does system use same well for water source and injection? ❑ Yes ® No
3. Are there any potential pollution sources that may affect injection? ® Yes ❑ No
FORM: WI0400093 APSSRR

AQUIFER PROTECTION REGIONAL STAFF REPORT
What is/are the pollution source(s)? Surficial Surfactant Sump up gradient. What is the distance of the injection
well(s) from the pollution source(s)? 120ft ft.
In the event of an exceptional flood event and a coinciding spill of surfactants held above gradient, there is a
potential for surface contamination of all down gradient existing and proposed wells, albeit a highly unlikely
occurrence.
4. What is the minimum distance of proposed injection wells from the property boundary? --20 ft.
5. Quality of drainage at site: ® Good ❑ Adequate ❑ Poor
6. Flooding potential of site: ® Low ❑ Moderate ❑ High
7. For groundwater remediation systems, is the proposed and/or existing groundwater monitoring program
(number of wells, frequency of monitoring, monitoring parameters. etc,) adequate? ❑ Yes ® No. Attach
map of existing monitoring well network if applicable. If No, explain and recommend any changes to the
groundwater monitoring program: Ideally, the contamination plume would be better defined: off -site monitor
wells are needed: The frequency of monitor events is adequate; DO levels need to be in ppm, not % saturation
as documented in the application.
8. Does the map presented represent the actual site (property lines, wells, surface drainage)? ® Yes or ❑ No. If
no or no map, please attach a sketch of the site. Show property boundaries, buildings. wells, potential pollution
sources, roads. approximate scale, and north arrow.
Iniection Well Permit Renewal And Modification Only:
1. N/A
2. For renewal or modification of groundwater remediation permits (of any tone). will
continued/additional/modified injections have an adverse impact on Nation of the plume or management of
the contamination incident? ® Yes ❑ No. If Yes. explain: S.Wang has reservations regarding injection of
HRC into bedrock aquifer.
3. Drilling contractor: Name: Geologic Exploration. Inc
Address: Unknown
Certification number: 2580
2

AQUIFER PROTECTION REGIONAL STAFF REPORT
4. Complete and attach Well Construction Data Sheet.
Please refer to the permit application for full size schematics
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V. EVALUATION AND RECOMNIENDATIONS
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1. Provide any additional narrative regarding your review of the application.:
2. Attach Well Construction Data Sheet - if needed information is available
3. Do you foresee any problems with issuancelrenewal of this permit? 0 Yes ® No. If yes, please explain
briefly. NIA
4. List any items that you would like APS Central Office to obtain through an additional information request.
Make sure that you provide a reason for each item:
Item
Reason
List on permit under Section IV (A) (1)
Responses to 2/15/6 letter infer
Injection Fluid Data, all fluids to be injected
the use of other injectants (i.e.,
Response to Bullet 2 states
46...DHC microorganisms can be
injected" and that " A buffer
solution will then be added...").
These injectants should be
approved by OEES and listed
under section IV (A)(l );
5. List specific Permit conditions that you recommend to be removed from the permit when issued. Make sure
that you provide a reason for each condition:
FORM: WI0400093 APSSRR 3

AQUIFER PROTECTION REGIONAL STAFF REPORT
Condition Reason
Bedrock Injections should To inject HRC into deep bedrock aquifer is not recommended
be avoided (per Shuying unless more detailed investigation and analysis on the deep
Wang's request) i bedrock aquifer system have been conducted.
5. List specific special conditions or compliance schedules that you recommend to be included in the permit when
issued. Make sure that you provide a reason for each special condition:
Condition Reason
None
7. Recommendation: ❑ Hold, pending receipt and review of additional information by regional office; ❑ Hold,
pending review of draft permit by regional office; ® Issue upon receipt of needed additional information;
Issue; ❑ Deny. If deny, please state reasons:
8. Signature of report preparer(s):
Signature of APS regional supervisor;
Date: 04 & Y
ADDITIONAL REGIONAL STAFFREV1EW ITEMS
None
FORM: W10400093 APSSRR
4

Existing Monitoring Wells on EAST side of property
SOUTH property line (looking west)
sou
(look
WI0400093_PFG, Inc
SOUTHEAST corner of PFG, Inc. property

AQUIFER PROTECTION SECTION
APPLICATION REVIEW REQUEST FORM
Date: December 14, 2007
❑ Landon Davidson, ARO-APS ❑ David May, WaRO-APS
❑ Art Barnhardt, FRO-APS ❑ Charlie Stehman, WiRO A4PS
❑ Andrew Pitner. MRO-APS ® Sherri Knight, WSRO-APS
❑ Jay Zimmerman, RRO-APS
ff �
t`om: u Qi , Groundwater Protection Unit r
Telephone: [phone] Fax: (919) 715`0588
E-Mail: gu.gi(a-), ncmail.net
A. Permit Number: W10400093
B. Owner: Precision Fabrics Groug
C. FaciliLv/Operation: _Precision Fabrics Grout
® Proposed ❑ Existing ❑ Facility ❑ Operation
1). _application:
1. Permit Type:
For Residuals
❑ Animal ❑ Surface Irrigation ❑ Reuse ❑ H-R Infiltration
❑ Recycle ❑ I/E Lagoon ❑ GW Remediation (ND)
® UIC - (51) in -situ groundwater remediation
❑ Land App. ❑ D&M ❑ Surface Disposal
❑ 503 ❑ 503 Exempt ❑ Animal
2. Project Type: ® New
❑ Major Mod. ❑ Minor Mod. ❑ Renewal ❑ Renewal wl Mod.
E. Comments/Other Information: ❑ I would like to accompany you on a site visit.
Attached, you will find all information submitted in support of the above -referenced application for your
review, comment, and/or action. Within 30 calendar days, please take the following actions:
® Return a Completed Form APSARR.
❑ Attach Well Construction Data Sheet.
❑ Attach Attachment B for Certification by the LAPCU.
❑ Issue an Attachment B Certification from the RO*.
* Remember that you will be responsible for coordinating site visits, reviews. as well as additional
information requests with other RO APS representatives in order to prepare a complete Attachment B for
certification. Refer to the RPP SOP for additional detail.
When you receive this request form, please write your name and dates in the spaces below, make a copy
of this sheet, and return it to the appropriate Central Office -Aquifer Protection Section contact person
listed above.
RO-APS Reviewer: Date:
FORM: APSARR 02/06 Page I of 1

STAXtNorth C
~d •" � Departu of Health and Human Services
Division of Public Health
- 1912 Mail Service Center ■ Raleigh, North Carolina 27699-1912
-� �• 2728 Capital Boulevard a [phone] ■ Courier 56-32-00
Ann F. Wolfe, M.D., M.P.H., Director
August 1, 2000
CD
MEMORANDUM
CM
o
n
�
n
TO: Mark Pritzel
Underground Injection Control Program
—
r-
Groundwater Section
r.
FROM: Luanne K. Williams, Pharrn.D., Toxicologistio,",
Medical Evaluation and Risk Assessment Unit
—�
Occupational and Environmental Epidemiology Branch
y
-c�� d
SUBJECT: Health Risk Evaluation Regarding the Use of Glycerol Tripolylactate, a Hydrogen
Release Compound, Used to Enhance In Situ Biodegradation Rates for
Chlorinated Compounds Detected in Groundwater at Fairchild Industrial Products
Company in Winston-Salem, North Carolina
I am writing in response to Qore, Incorporation's request for a health risk evaluation
regarding the use of Glycerol Tripolylactate, a hydrogen release compound, to enhance in situ
biodegradation rates for chlorinated compounds detected in the groundwater at Fairchild
Industrial Products Company in Winston-Salem, North Carolina (see enclosed letter dated April
10, 2000). Based upon my review of the information submitted, I offer the following health risk
evaluation:
WORKER PRECAUTIONS DURING APPLICATION
Some effects reported to be associated with the product proposed to be used are as
follows: eye, skin, nose, throat, and lung irritation. If the product is released into the
environment in a way that could result in a suspension of fine solid or liquid particles
(e.g., grinding, blending, vigorous shaking or mixing), then proper personal protective
equipment should be used. The application process should be reviewed by an industrial
hygienist to ensure that the most appropriate personal protective equipment is used.
Persons working with these products should wear goggles or a face shield, gloves, and
protective clothing. Face and body protection should be used for anticipated splashes or
sprays.
Eating, drinking, smoking, handling contact lenses, and applying cosmetics should not be
permitted in the application area during or immediately following application.
Ever),Wjere. Evep),Day. Every&dy. F-19 Asi Equal Oppormijity,l,4frmalive.tetian Employer �`�

Mark Pritzel Memo
August 1, 2000
Page Two
4, Safety controls should be in place to ensure that the check valve and the pressure delivery
systems are working properly.
The Material Safety Data Sheets should be followed to prevent incompatible or adverse
reactions and injuries.
OTHER PRECAUTIONS
1, Access to the area of application should be limited to the workers applying the product.
In order to minimize exposure to unprotected individuals, measures should be taken to
prevent access to the area of application.
2. According to the information submitted with the letter dated April 10, 2000, municipal
water is available to the application area, and there are no known public water supply
welts located within 1,500 feet of the site. However, two private water supply wells are
reported to be located approximately 1,200 and 1,500 feet southwest of the site,
respectively. Qore, Inc. has reported that with an initial lactic acid groundwater
concentration of 5,000 and 1,000 ppm, the concentration would be diluted to 1 ppm at
45.93 and 41.34 feet, respectively. It appears that impact to the closest wells is unlikely;
however, it is recommended that the Groundwater Section review the data and determine
likelihood of potential impact to these wells.
3. According to the information submitted, an unnamed tributary of Salem Creek is located
near the proposed application area. It is recommended to contact Ms. Dianne Reid «.ith
the Water Quality Section at [phone] extension 568 to determine if this product or
process could impact these water bodies.
If you have any questions, contact me at [phone].
LKW:mbf
c: Mr. John Sealey, Fairchild Industrial Products Company
Mr. Kim Caulk, Qore Property Sciences
Dr. Steve Koenigsberg, Ph.D., Regenesis (manufacturer)
Ms. Dianne Reid, Water Quality Section