WQ0002431_Final Permit_19950130

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
January 30, 1995
Mr. A.W. Huffman, Jr.
Huffman Finishing Company
P.O. Box 170
Granite Falls, NC 28530
ACTJK JW
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Subject: Permit No. WQ0002431
Huffman Finishing Company
Land Application of Wastewater Residuals
Caldwell County
Dear Mr. Huffman:
In accordance with your application received on July 5, 1994, we are forwarding herewith Permit
No. WQ0002431, dated January 30, 1995, to Huffman Finishing Company for the continued operation of
a wastewater residuals land application program.
This permit shall be effective from the date of issuance until December 31, 1999, shall void Permit
No. WQ0002431 issued March 19, 1990, and shall be subject to the conditions and limitations as
specified therein. Please pay particular attention to the monitoring and reporting requirements contained in
this permit. Failure to establish an adequate system for collecting and maintaining the required operational
information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North
Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447,
Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
If you need additional information concerning this matter, please contact Mr. Ray Cox at (919)
733-5083.
Sincerely,
A. PrestdA Howard, Jr., P.E.
cc: Caldwell County Health Department
Shankar Mistry, The Wooten Company
Asheville Regional Office, Water Quality Section
Asheville Regional Office, Groundwater Section
.Tack Floyd, Groundwater Section, Central Office
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
RESIDUALS LAND APPLICATION PERMIT
In accordance. with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Huffman Finishing Company
Caldwell County
FOR THE
continued operation of a wastewater residuals land application program consisting of the application of
approximately 19.0 dry tons per year of residuals from the Huffman Finishing Company wastewater
treatment facility to approximately 80.0 acres of land in Caldwell County (described in condition VIA)
with no discharge of wastes to the surface waters, pursuant to the application received on July 5, 1994,
and in conformity with the project plan, specifications, and other supporting data subsequently filed and
approved by the Department of Environment, Health and Natural Resources and considered a part of this
permit
This permit shall be effective from the date of issuance until December 31, 1999, shall void Permit
No. WQ0002431 issued March 19, 1990, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDAR
1. This permit shall become voidable if the soils fail to adequately assimilate the wastes and
may be rescinded unless the sites are maintained and operated in a manner which will
protect the assigned water quality standards of the surface waters and ground waters.
2. The land application program shall be effectively maintained and operated as a non -
discharge system to prevent the discharge of any wastes resulting from the operation of this
program.
3. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this program.
4. In the event that the land application program is not operated satisfactorily, including the
creation of nuisance conditions, the Permittee shall cease applying residuals to the sites and
take any immediate corrective actions as may be required by the Division.

5. Some of the buffers specified below may not have been included in previous permits for
this land application operation. However, any sites or fields that are included in this
permit, but were approved with different applicable buffers shall be reflagged to comply
with the below buffers. The following buffer zones shall be maintained:
a) 400 feet from residences or places of public assembly under separate ownership for
surface application method; however, the buffer zone requirement may be reduced to a
minimum of 100 feet upon written consent of the owner and approval from the
appropriate DEM regional office,
b) 200 feet from residences or places of public assembly under separate ownership for
subsurface residual injection method; however, the buffer zone requirement may be
reduced to a minimum of 100 feet upon written consent of the owner and the
appropriate DEM regional office, '
c) 100 feet from any public or private water supply source, waters classified as SA or SB,
and any Class I or Class R impounded reservoir used as a source of drinking water for
both methods,
d) 100 feet from any streams classified as WS or B, any other stream, canal, marsh or
coastal waters and any other lake or impoundment for surface application,
e) 50 feet from any streams classified as WS or B, any other stream, canal, marsh or
coastal waters and any other lake or impoundment for subsurface application,
f) 100 feet from property lines for both surface and subsurface application methods;
g) 50 feet from public right of ways for both application methods,
h) 10 feet from upslope interceptor drains and surface water diversions for both
application methods,
i) 25 feet from downslope interceptor drains, surface water diversions, groundwater
drainage systems and surface drainage ditches for both application methods.
6. A copy of this permit shall be maintained at the land application site when residuals are
being applied during the life of this permit. A spill prevention and control plan shall be
maintained in all residuals transport and application vehicles.
7. Specific residual application area boundaries shall be clearly marked on each site prior to
and during application.
8. No residuals at any time shall be stored at any application site, unless approval has been
requested and obtained from the Division of Environmental Management.
9. Maximum slope for residual application shall be 10% for surface application and 18% for
subsurface applications.
II, OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities and application sites shall be properly maintained and operated at all times.
2. A suitable vegetative cover, as listed in condition H 4, shall be maintained in accordance
with the crop management plan outlined by the local Extension Office of the Department of
Agriculture, or the Soil Conservation Service, or other agronomist, and approved by this
Division.
3. An acceptable pH must be maintained in the soil, residual and lime mixture, greater than
6.0, on all land application sites to insure optimum yield for the crop(s) specified below.
The agronomist shall provide information on the pH best suited for the specified crop and
the soil type.
2

4. The application rates shall not exceed the following for the specified crops:
Crop PAN (lb./acrdyn)
Alfalfa
200
Bermuda Grass (Hay, Pasture)
220
Blue Grass
120
Corn (Grain)
160
Corn (Silage)
200
Cotton
70
Fescue
250
Forest (Hardwood & Softwood)
75
Milo
100
Small Grain (Wheat, barley, oats)
100
Sorghum, Sudex (Pasture)
180
Sorghum, Sudex (Silage)
220
Soybeans
200
Timothy, Orchard, & Rye Grass
200
5. No residuals other than the following are hereby approved for land application in
accordance with this permit:
Permit Estimated
Source County Number Volume (dry tons/year)
Huffman Finishing Company Caldwell NC0025135 19.0
6. The lifetime heavy metal loadings shall not exceed the following for the corresponding
Cation Exchange Capacities (CEC):
Lifetime Loadings (lbs/acre)
Parame
CEC
Lead
500
Zinc
250
Copper
125
Nickel
125
Cadmium
4.5
CEC 5 - 15
C:EC > 1
1000
2000
500
1000
250
500
250
500
9
18
7. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified land application/residuals operator to be in responsible charge (ORC) of
the land application program. The operator must hold a certificate of the type classification
assigned to the land application program by the Certification Commission. The Permittee
must also employ a certified back-up operator of the appropriate type to comply with the
conditions of Title 15A NCAC 8A, .0202.
Adequate procedures shall be provided to prevent surface runoff from carrying any
disposed or stored residuals into any surface waters.
9. Surface applied residuals will be plowed or disced within twenty-four (24) hours after
application on lands with no cover crop established.
10. For areas that are prone to flooding or within the 100 -year flood elevation, residuals may
be applied only during periods of dry weather. The residuals must be incorporated into the
soil within twenty-four (24) hours after application.
N

11. Appropriate measures must be taken to control public access to the land application sites
during active site use and for the 12 -month period following the last residual application
event. Such controls may include the posting of signs indicating the activities being
conducted at each site.
12. Adequate provisions shall be taken to prevent wind erosion and surface runoff from
conveying pollutants from the residuals application area onto the adjacent property or into
any surface waters.
13. Residuals shall not be applied in inclement weather or until 24 hours following a rainfall
event of 112 -inch or greater in 24 hours. Any emergency residuals disposal measures must
first be approved by the Division of Environmental Management.
14. Residuals shall not be applied to any land application site that is flooded, frozen or snow-
covered.
15. Residuals shall not be applied at rates greater than agronomic rates, unless authorized by
the Division.
16. Animals shall not be grazed on an application site for 30 days after residuals application.
Application sites that are to be used for grazing shall have fencing that will be used to
prevent access after each application.
17. Food crops, feed crops and fiber crops that do not come in contact with tht residuals shall
not be harvested for 30 days after residuals application.
18. Food crops with harvested parts that touch the residual/soil mixture and are totally above
the land surface (ex. tobacco, melons, cucumbers, squash, etc.) shall not be harvested for
14 months after residuals application.
19. Food crops with harvested parts below the surface of the land (root crops such as potatoes,
carrots, radishes, etc.) shall not be harvested for 20 months after application of residuals
when the residuals remain on the land surface for four (4) months or longer prior to
incorporation into the soil.
20. Food crops with harvested parts below the surface of the land shall not be harvested for 38
months after application of residuals when the residuals remain on the land surface for less
than four (4) months prior to incorporation into the soil.
21. Turf shall not be harvested for 1 year after residuals application if the turf is to be placed on
land with a high potential for public exposure.
III. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring (including groundwater, surface water, residuals, soil, or plant tissue
analyses) deemed necessary by the Division of Environmental Management to insure
protection of the environment will be established and an acceptable sampling and reporting
schedule shall be followed.
4

2. Proper records shall be maintained by the Permittee tracking all application activities.
These records shall include, but are not necessarily limited to the following information:
a) source of residuals
b) date of residual application
c) location of residual application (site, field, or zone #)
d) method of application
e) weather conditions (sunny, cloudy, raining, etc.)
f) soil conditions
g) type of crop or crops to be grown on field
h) volume of residuals applied in gallons/acre, dry tons/acre or kilograms/hectare
i) annual and cumulative totals of dry tons/acre of residuals, annual and cumulative
pounds/acre of each heavy metal (which shall include, but not be limited to cadmium,
copper, lead, nickel, and zinc), annual pounds/acre of plant available nitrogen (PAN),
and annual pounds/acre of phosphorus applied to each field.
3. A representative annual soils analysis (Standard Soil Fertility Analysis) shall be conducted
of each site receiving residuals in the respective calendar year and the results maintained on
file by the Permittee for a minimum of five years.
The Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the
following parameters:
Acidity Manganese Potassium
Calcium Percent Humic Matter Sodium
Copper pH Zinc
Magnesium Phosphorus
Base Saturation (by calculation)
Cation Exchange Capacity
The Standard Soil Fertility Analysis (see above) and an analysis for the following metals
shall be conducted once prior to permit renewal on soils from each site which has received
sludge during the permit cycle.
Cadmium Lead Nickel
4. A residuals analysis will be conducted annually from the date of permit issuance by the
Permittee and the results maintained on file by the Permittee for a minimum of five years.
If land application occurs at a frequency less than annually, a residuals analysis will be
required for each instance of land application.
The residuals analysis shall include but is not necessarily Iimiwd to the following
parameters:
Cadmium
Nitrate -Nitrite Nitrogen
Copper
% Total Solids
Lead
pH
Nickel
Phosphorus
Zinc
Plant Available Nitrogen (by calculation)
Aluminum
Potassium
Ammonia --Nitrogen
Sodium
Calcium
TKN
Magnesium

5. A Toxicity Characteristics Leaching Procedure (TCLP) analysis shall be conducted by the
Permittee annually. The TCLP analysis shall include the following parameters (please note
the regulatory level in mg/L in parentheses):
Arsenic (5.0)
Benzene (0.5)
Carbon tetrachloride (0.5)
Chlorobenzene (100.0)
Chromium (5.0)
m -Cresol (200.0)
Cresol (200.0)
1,4 -Dichlorobenzene (7.5)
1,1-Dichloroethylene (0.7)
Endrin (0.02)
Hexachlorobenzene (0.13)
Hexachloroethane (3.0)
Lindane (0.4)
Methoxychlor (10.0)
Nitrobenzene (2.0)
Pyridine (5.0)
Silver (5.0)
Toxaphene (0.5)
2,4,5 -Trichlorophenol (400.0)
2,4,5 -TP (Silvex) (1.0)
Barium (100.0)
Cadmium (1.0)
Chlordane (0.03)
Chloroform (6.0)
o -Cresol (200.0)
p -Cresol (200.0)
2,4-D (10.0)
1,2-Dichloroethane (0.5)
2,4-Dinitrotoluene (0.13)
Heptachlor (and its hydroxide) (0.00$)
Hexachloro-1,3-butadiene (0.5) '
Lead (5.0)
Mercury (0.2)
Methyl ethyl ketone (200.0)
Pentachlorophenol (100.0)
Selenium (1.0)
Tetrachloroethylene (0.7)
Trichloroethylene (0.5)
2,4,6 -Trichlorophenol (2.0)
Vinyl chloride (0.2)
6. Three copies of all required monitoring and reporting requirements as specified in
conditions 111 1, 111 2, 111 3,1114 and III 5 shall be submitted annually on or before March
I of the following year to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
7. Noncompliance Notification:
The Permittee shall report by telephone to the Asheville Regional Office, telephone number
704/251-6208, as soon as possible, but in no case more than 24 hours or on the next
working day following the occurrence or first knowledge of the occurrence of any of the
following:
a. Any occurrence with the land application program which results in the land application
of significant amounts of wastes which are abnormal in quantity or characteristic.
b. Any failure of the land application program resulting in a release of material to receiving
waters.
c. Any time that self-monitoring information indicates that the facility has gone out of
compliance with the conditions and limitations of this permit or the parameters on
which the system was designed.
d. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate residual treatment.
e. Any spillage or discharge from a vehicle or piping system transporting residuals to the
application site.

Persons reporting such occurrences by telephone shall also file a written report in letter
form within 15 days following first knowledge of the occurrence. This report must outline
the actions taken or proposed to be taken to ensure that the problem does not recur.
IV. GROUNDWATER _REQUIREMENTS
1. Any groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
2. No land application of waste activities shall be undertaken when the seasonal high water
table is less than three feet below land surface.
V. INSPECTIONS
1. The Permittee or his designee shall inspect the residuals storage, transport, and application
facilities to prevent malfunctions and deterioration, operator errors and discharges which
may cause or lead to the release of wastes to the environment, a threat to human health, or a
nuisance. The Permittee shall maintain an inspection log or summary including at least the
date and time of inspection, observations made, and any maintenance, repairs, or corrective
actions taken by the Permittee. This log of inspections shall be maintained by the Permittee
for a period of five years from the date of the inspection and shall be made available to the
Division of Environmental Management or other permitting authority, upon request.
2. Any duly authorized officer, employee, or representative of the Division of Environmental
Management may, upon presentation of credentials, enter and inspect any property,
premises or place on or related to the application site or facility at any reasonable time for
the purpose of determining compliance with this permit; may inspect or copy any records
that must be kept under the terms and conditions of this permit; and may obtain samples of
groundwater, surface water, or leachate.
VI. GENERAL CONDITIONS
1. This permit shall become voidable unless the land application activities are carried out in
accordance with the conditions of this permit, the supporting materials, and in the manner
approved by this Division.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
-r
3. This permit is not automatically transferable. In the event that there is a desire for the
facilities to change ownership or a name change of the Permittee, a formal permit request
must be submitted to the Division of Environmental Management accompanied by an
application fee, documentation from the parties involved, and other supporting materials as
may be appropriate. The approval of this request will be considered on its merits and may
or may not be approved.

4. The following are approved sites for residuals application (see attached map(s)):
Application Area [acres]
Site No. Owner/Lessee _Lexcludingbuffers)
1 J.P. Baumgamer 25.0
2a Huffman Finishing Co. 20.0
3 John Frank Miller 35.0
TOTAL AVAILABLE ACRES 80.0
a A portion of this site was determined to have groundwater within 36 inches of the
surface. The portion is marked on the attached map, and shall be excluded from the
application area whenever groundwater is not more than 36 inches from the surface.
5. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c).
6. The annual administering and compliance fee must be paid by the Permittee within thirty
(30) days after being billed by the Division. Failure to pay the fee accordingly may cause
the Division to initiate action to revoke this permit as specified by 15 NCAC 2H .0205
(c)(4).
7. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
8. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
9. This permit may be modified, or revoked and reissued to incorporate any conditions,
limitations and monitoring requirements the Division of Environmental Management deems
necessary in order to adequately protect the environment and public health.
10. This permit shall become voidable unless the agreements between the Permittee and the
landowners/lessees are in full force and effect. The land owner agreements are considered
expired concurrent with the expiration date of the permit and must be renewed at the same
time the permit is renewed.
Permit issued this the thirtieth day of January, 1995
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
0", X.
A. Prestonoward, Jr., P.F/., Director
Division of nvironmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0002431

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RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility:
Owner or Contact
Mailing Address: 1�y 3c X i 7U
County: Telephone:
Present Classification: New Facility Existing Facility iC
NPDES Per. No. NC00 ,2_,;5�/ 3 _ Nondise. Per. No.WQ C_"0 Health Dept.Per No.
Rated by: ,e ZC� Telephone: 7c J --Z.4/- E z, � Dater
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade:
Check Classification (s): Subsurface Spray Irrigation
Wastewater Classification: (Circle One) I 7!lE / III IV
elephone:
Land Application
Total Points:4�
► "r :►1 �:�� �_ :►i G : 1 � *►Iliad w�. �u�►1 :!� f.� :C :► ►11� G: :1 � \ � �'llt: Si �i� Iia � •�
��.►� • j • �1l Ia L 1�►1 ami lel ;: a�� �� �► . 1. :-►-� 1 i�. �S�► 7 Iqi
L I1. 1. :►•
Foal MITANIMtIl'a a.. 1�► :* � pi�.0 :� �►
SLIBSURFAC:E CLASSIFICATION
(check ail units that apply)
1. septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4. sand filters
5. grease traprinterceptor
6 oil/water separators
,?-gravity subsurface treatment and disposal:
pressure subsurface treatment and disposal:
SPRAY IRi31CaATION CLASSIFICAT0N
(check all units that apply)
1.
preliminary treatment (definition no. 32 )
2.
Iagoons
3.
septic tanks
4.
pump tanks
5_
pumps
6.
sand filters
7 -grease
traplinterceptor
8.
oil/water separators
9.
_disinfection
10.
chemical addition for nuirient/algae control
11.
spray Irrigation of wastewater
In addition to the above classlflcations, pretreatment of wastewater In excess of these components shell
be rated using the point rating system and will require an operator with an appropriate dual certification.
LA�li
LICATIONIRESIDUALS CLASSIFICATION (Appes only to permit ho(der)
1. Land application of biosolids, residuals or contaminated soils on a designated she.
WASTEWATERTRFATMQNT FACILITY CLASSIFICATION
The following systems shall be assigned a Class I classification, unless the flow is of a significant quantity or the technology is unusually
oomplex, to require consideration by the Commission on a case-by-case basis: (Check if Appropriate)
1. Oit/wafer Separator Systems consisting only of physical separation, pumps and disposal;
2. Septic TanklSand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand fiffers, disinfection
and direct discharge,
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
agae or nutrient control, and direct discharge;
4. Closed-loop Recycle Systems;
5. Groundwater Remediation Systems consisting only of oil/water separators, pumps, air -stripping, carbon adsorption, disinfection
and dispo s];
6. Aquaculture operations with discharge to surface waters;
7-waler Plant sludge handling and back -wash water treatment;
a. Seafood processing consisting of screening and disposal.
9. Single-family discharging systems, whh the exception of Aerobic Treatment Unils, will be classified if permitted after July 1,
1993 or 4 upon inspection by the Division, ft is found that the system Is not being adequately operated or maintained, Such
systems will be notified of the classification or reclassification by the Commission, in writing.

The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
ITEM
POINTS
(1) Industrial Pretreatment Untie or Industrial Pretreatment Program (see dellnnlon No. 33) ...................................................t
(2) DESIGN
FLAW OF PLANT IN gpd [not applicable to nort contaminated cooing waters, sludge harming facilities for
water purification plants, totally dosed cycle syslems(see definition No. 111. and facilities consisting only of Item
(4)(d) or
Items (4)(d) and (11)(d))
0 - 20.000 ...................... „........... ........ ....................... ....................... ............... ..................................... 1
20,001 - 50,000 ................. ......... „...................... -......... _....................................................................... 2
50.001 - 100.000.1 ...... I ....... I .................................................. I ................................. I ............................... 3
100,001 - 250,000.............................................................................................................................
250,001 - 500,000..................................................................................................................................
500,001 - 1,000,000_.._.......-..._.-......................................................................................-------...-....-.S
1.000,901 - 2.000.000 ............. .......................... ................................. ................... . ................. »...-....... 10
2.000.001 (and up) rate 1 polrt additional for each 200,000 gpd capacity up to a rnaxlmurm of ....... ....30
Design Flow (gpd)
(3) PRELIMINARY UNfTS/PROCESSES (see definition No.32)
(a)
Bar Screens....................................................................................................................... ...............1
(b)
Mechanical Screens, Slatlo Screens Of Comminuting DevRe6...... ........... _..... ._. .... .»........_..._....2
(c)
Grit Removal..............................................................................................................................................1
or
(d)
Mechanical or Aerated Grit Removal ............ .................. ........ ............ ................................... ................ 2
(e}
Flow Measuring Day.............„ ............ ........... »................................................ ...................................... 1
(f)
or
Instrumented Flow Measurement...........................................................................................__....._._........
(g)
Preaeratlon...............................................................................................................................................
(h)
Influent Flow Equalization .................... ....................................................................................... ....... ...
(i)
Grease or Oil Separators -Gravity............_........._..._..._...-.---._._._...._._.__............._..._..._._..._..
Machanical.................... ................... ................. .... ....................... ..................... ................................ 3
Dissolved Air Flolatlon.............. ......... „........... ................. „.................................................................. ...a
()}
Prechlorinallon.........._........_..........................................„...................................................................5
(4) PRIMARYTREATMENTWRS/PROCESSES
(a)
Septic Tank (see definition No. 43) .................... ......................................................................................2
(b)
imholf Tank..............................................................................................................................................b
(c)
Primary ClarHlem................................................................................................................................. ...5
(d)
Settling Ponds or Settling Tanks for inorganic Non-toxic Materials (sludge handling facllitles for water
purification plans, sand, gravel, stone, and other mining operations except recreational activities such as gem
orgold mining) ........................................... ___ ........... ........ ................ _.............. .... ....................... 2
(5) SECONOARYTREATMENT LtZTSIPFCCESSES
(a)
Carbonaceous Stage
(1) Aeration High Purity Oxygen System..............................................„...............................20
DiffusedAir System.......................................................................................................1 0
Mechanical Air System (fixed, floating or rotor)„„.„... .„...„...„...........„... .......
SeparateSludge ReaeratIon....... ......................... „.................................................... ......
(11) Trickling Filter
HighRale............................................................„......................„....„..„........................7
StandardRate...........................................„„..................................„..........................5
PackedTower............„................................................................................---•........_.....5
(iii) Biological Aerated Filter or Aerated Biological Finer ..„.„.._........„ .............„_... „„...„.„„.1 0
(Iv) Aerated Lagoons.....................................................................................................10
(v) Rotating Biological ConlacLors................................................. ...................„................10
(vi) Sand Filters -intermittent biological.................................................... ............................ 2
Recirculating biological.................„.............................................................................._..3
(VII) Stabilization Lagoons.„.........-..„.....................„...................................„.......„.„...........5
(viii) Ctartrw.................. ..... .... ...... I ........ .. 1-1_1 ....... ...............
(Ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal by
nhrificatlon (see dolinklon No. 12)(Points for this Item have to be in addition to hems
(5)(a)(1) through (5)(a)(viil),
uVilzing the extended aeration process (see definition No.3a)..........................................2
utilizing other than the extended aeration process......„....„.....„.......................................a
!x) Nutriert additions to enhance SOD removal ... ....... -.,-.................... -... ............................ 5
(XI) Biological Culture ('Super Bugs')addhion................ ..........................„.........„...............5
(b)
Nitrogenous Stage
(f} Aeration - High Purity Oxygen System .................................................................. 20
Dnlused Alr System.........................................„............................................................10
Mechanical Air System (fixed, floating or rotor) ............................................... „........8
SeparateSludge Reaeratlon......................................„....................................................3
(11) Trickling Filter -High Rate ............... „............ „.................................. ........ ............ „......... 7
Standard Rate ...................................... ...............................-........................ .._........5
PackedTower........................................„............................„„.......................„.„......„..S
(Ill) Biological Aerated Finer or Aerated Biological Flner._ . _...„...__.__. .__...„.„ ..„ .„_._.10
(N) Rotating Bioiogfcai Conlactors......................................................................................10
(v) Sand Finer - InisrmMent biological..................................................................................2
Recirculating biological......................................................................................„............3
(vl} Clarifier..............................................................................................
(6) iERTWWORADVANCEDTREATME4TI.t4gS+PAOCESSES
(a)
Activated Carbon Beds -
withoutcarbon regeneration.................».............................„.....„...„..................„„.......„....5
withcarbon regeneration ....... ...„..-...„......................„............„............„..-......... .......„.„„..16
(b)
Powdered or Granular Activated Carbon Food -
withoutcarbon regeneration......................................................„........................................5
withcarbon regeneration.....................................................................................................15
(d)
Air stripping . ...................................................................„...........................................................5
(d)
DenWication Process..........................................................................................„..................................10
(e)
Electrodialysis.........„.„..„................................................................„.....................................................5
(1)
Foam Separation........., ...... ........................ „.................................................... ..................................... ..5
(g)
Ion Exchange... ... ...... ......... ....... ....... ..„..............5
(h)
Land Application of Treated Effluent (sae definition No. 22b) (not applicable for sand, gravel, stone
and other slm;lar mining operations) by high rate Intlltratlon............................................ .... ..... ........... A
(I)
Microscreans.. ......... .. ....S
.......................................................................................................................
O)
phosphorous Ramoval by Blologtcal Processes (See definition No. 26).........................................................20
(k)
Polishing Ponds - without aeration ................ ............ ....................... „...................................................... 2
withaeration .................. ....„............ ....... ......„„...........„...............................................

Facilities having a rating of one through four paints, Inclusive, do not require a certffied operator.
Facilities having an activaiad nudge process wig be assigned a minimum classlficallon of Class If.
Facililles having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Faalrties having treatment processes for the biological removal of phosphorus will be assigned a minimum ctassifiration of Class 111.
,0004 DEFINITK MS
The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physlcallchemical method for reducing soluble organic materlat from wastewater effluent; The column[ -type beds used In this
method will have a flow rate varying from two to eight gallons per minute per square foot and may be either upflow or downflow carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant site;
(2) Aerated Lagoons. A basin in which all solids are maintained In suspension and by which biological oxidation or organic matter Is reduced through artificially
accelerated transfer of oxygen on a flow-through basis;
(3) AeratlorL A process of bdnging about Intimate contact between air or high purity oxygen In a liquid by spraying, agttatlon or aliusion;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 16 hours.
(d) Agriculturally managed site. Any site on which a crop Is produced, managed, and harvested (Crop includes grasses, grains, trees, sic.);
(5) Air Stripping. A process by which the ammonium Ion Is first converted to dissoived ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; or other similar processes which remove petroleum producls such as benzene, toluene, and xylene;
(6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize the
absorbed impurities;
(7) Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent limits;
(8) Cenlrifuge. A mechanical device in which centrifugal force Is used to separate solids from liquids or to separate liquids of different denshlas;
(4) Chemical Addition Systems- The addition of chemical(s) to wastewater at an appflration point for purposes of Improving solids removal, pH adjustment,
alkalinity control, etc.; the capabifCy to experiment with dMerent chemicals and different appllcallon points to achieve a specific result wilt be considered one
stem; the capab€lily to add chemicals) to dual units #4 be rated as one system; capability to add a chemical at a different application points for different
poses will result In the sysloms being rated as separate systems;
) Chemical Sludge Condhioning, The addition of a chemical compound such as Ilme, ionic chloride, or a polymer to wet sludge to coalesce 11te mass prior to
a application to a dewatering device;
(11) Closed Cycle Systems, Use of holding ponds or holding tanks for containment of wastewater containing Inorganic, non-toxic materials from sand, gravel,
crushed stone or other similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances;
(12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrification- A singis stage. system required to achieve perrnll effluert fthe on SOD
and ammonia nitrogen within the same biological reactor,
(13) Dechlorination. The partial or complete reduction of residua) chlorine In a liquid by any chemical or physical process;
(14) Denflrtfi0alion Process. The conversion of nitrate -nitrogen to nitrogen gas;
(1)
Post Aeration - cascade......................................................................................................................<
diffusedor mechanical ................................................... „................... ...........
..... .....
(m)
Reverse Osmosis...................................................................................„..»..----..........................................5
(n)
Sand or Mixed -Media Fillers - low rale..... ..---..__...-_.-_.„..„...„........„....„.......--------------------------------- 2
highrate ... ..».»...... »...»».»_»_.» ...............................5
(o)
Treatment processes for removal of metal or cyardde ....................._................. .,,........ .-..........
.................. 15
( p )
treatmern processes for removal of toxic materials cnher than metal or cyanide-.--. —.
- --------„-1 5
(7)
SLLJDGETREATMENT
(a)
Sludge Digestion Tank - Heated (anaerobic).__...„. __—..„..„..». „ .._.. _.»..r
Aerobic.................................. .._.» .....«............................... __ ....» _
.........t0
... .„...
Unheated (anaerobic).......................... ...»« ...... „..„.»_._._.„...... .......».. ........»._ .».»......».
».
(b)
(c)
Sludge Stabilization (chemical or them[al}......».... ..._. ».................»....»............ ........................ S
Sludge Drying Beds -Gravity...__.-- ................„... .„ ......„»....» ............ ... ... .. ..
VacuumAssisted ..................... .......... .... ».............. »...-..„......... ....».«,.�._.. ....-
- . ........
(d)
Siudge Elutriation ................... ....... ....».................... .................... ............................ .».»...»....»...S
(e)
Sludge Condliloner (chemical M theanal}.»„..—......_.„_.»r..»„.................................................
..........3
(f)
Sludge Thickener (gravity) .............. ...... ...... .»»............................................. .......... .... .........................
(g)
Dissolved Air Flotation Unit [not applicable to a unM rated as(3)(f))................ .................... _
......... ..............
(h)
Sludge Gas Utilization (including gas storage) ........ .................... ....................„........„...„.........................2
(1)
Sludge Holding Tank - Aerated ......................... ............ .... »....... ... .........................................
.............. 5
Non --aerated. ...... ... .. ......................................................_........................2
{[)
Sludge Incinerator (not Including activated carbon regeneration)................................................................10
(k)
Vacuum Fifter, Centrifuge, or Fifler Press or other similar devrglering devices..„................................................10
(8)
RESIDUALS UTILfZATION/DISPOSAL (including incinerated ash)
(a)
Lagoons. ....... .....................................................................2
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who folds the Land application permll
or landfill pem-d.............................................................................................................................» _.
(c)
Dedicated Landflll(burial) by the permitteo of the wastewater treatment facility...„..„....„.....„...
-------- ,_..b
{B)
(aD�CFIC1Ch
Lori nation «...........»..»... .»...-.»...»....» .._............... ...»... ... .....»._._..._.__.
...--ii?
(b)
t]echlorination«...»..«......,.. .»r _ .....». .... ...».........» »...» ».»». ..».... » ...............
.........».
(c)
...-................. .«»»«...._«»._.«.»»...»...«..».b
(d)
Radiation. ...... ....
»..«..».S
(10)
CHEMICAL ADDITION SYSTEM(S) ( see definition No. 9) (not applicable to chemkai additions rated as Item (3)0),
(5)(a)(xi),
(6)(a). (6)(b). (7)(b). (7)(e). (9a). (9)(b) or (9)(c) i points each:
List„...
_....._..�..... .. .......„_ .... »..» .».»» ..... »..» .„ .. _...»..»».»... »..... 5
............................... .... ... ...................... ...... .................... »........... ...»»..... ............. 5
............. ....... ........................ ....... ....._-....................... »».».... _....... ....................... 5
(11)
MSCELLANEOUS UNITS/PROCESSES:
(a)
Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Maaedals Including wastes from mining
operations containing nitrogen or phosphorus compounds In amounts significantly greater than is common
fordomestic wastewater................................................................................................. ......................A
(b)
Effluent Flow Equalization (not applicable to storage basins which are Inherent In land application
systems) -_2
(c)
Stage Discharge {not applicable to storage basins inherent in land applicationW
(d)
Pumps..............................................................................................................................................
(e)
Stand -By Power Supply........................................................................................................
(1)
Thermal Pollution Control Devkx................................................................................................
TOTALPOINTS ............ .... .................. ............... .._..
........
C ASSIFICATICN
Class I .................. ........ ..................... ..... ....................... 6-25 p fats
lass....................................................................26-59 P
III ...............»».............»...... - 37 --ZS' Points
— — — ---
---
ClassN- .».».........„......„. »...» ....»......... ..........». ...........-_.............66•Up Points
— -- — ------------------------------- — — — -- —
— — — ----
Facilities having a rating of one through four paints, Inclusive, do not require a certffied operator.
Facilities having an activaiad nudge process wig be assigned a minimum classlficallon of Class If.
Facililles having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Faalrties having treatment processes for the biological removal of phosphorus will be assigned a minimum ctassifiration of Class 111.
,0004 DEFINITK MS
The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physlcallchemical method for reducing soluble organic materlat from wastewater effluent; The column[ -type beds used In this
method will have a flow rate varying from two to eight gallons per minute per square foot and may be either upflow or downflow carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant site;
(2) Aerated Lagoons. A basin in which all solids are maintained In suspension and by which biological oxidation or organic matter Is reduced through artificially
accelerated transfer of oxygen on a flow-through basis;
(3) AeratlorL A process of bdnging about Intimate contact between air or high purity oxygen In a liquid by spraying, agttatlon or aliusion;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 16 hours.
(d) Agriculturally managed site. Any site on which a crop Is produced, managed, and harvested (Crop includes grasses, grains, trees, sic.);
(5) Air Stripping. A process by which the ammonium Ion Is first converted to dissoived ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; or other similar processes which remove petroleum producls such as benzene, toluene, and xylene;
(6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize the
absorbed impurities;
(7) Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent limits;
(8) Cenlrifuge. A mechanical device in which centrifugal force Is used to separate solids from liquids or to separate liquids of different denshlas;
(4) Chemical Addition Systems- The addition of chemical(s) to wastewater at an appflration point for purposes of Improving solids removal, pH adjustment,
alkalinity control, etc.; the capabifCy to experiment with dMerent chemicals and different appllcallon points to achieve a specific result wilt be considered one
stem; the capab€lily to add chemicals) to dual units #4 be rated as one system; capability to add a chemical at a different application points for different
poses will result In the sysloms being rated as separate systems;
) Chemical Sludge Condhioning, The addition of a chemical compound such as Ilme, ionic chloride, or a polymer to wet sludge to coalesce 11te mass prior to
a application to a dewatering device;
(11) Closed Cycle Systems, Use of holding ponds or holding tanks for containment of wastewater containing Inorganic, non-toxic materials from sand, gravel,
crushed stone or other similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances;
(12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrification- A singis stage. system required to achieve perrnll effluert fthe on SOD
and ammonia nitrogen within the same biological reactor,
(13) Dechlorination. The partial or complete reduction of residua) chlorine In a liquid by any chemical or physical process;
(14) Denflrtfi0alion Process. The conversion of nitrate -nitrogen to nitrogen gas;

(15) Elactrodlaysts. Process for removing Ionized salts from water through the use of ion -selective Ion -exchange membranes;
(16) Fitter Press. A process operated mechardcally lar partially dewatering sludge;
(17) Foam Separation. The ptanned frothing of wastewater or wastewater effluent as a means of removing excessive amounts of detergent materials through
the Introduction o1 air in the form of fine bubbses; also called foam fractionation;
'18) Grit Removal. The process of removing grit and other heavy mineral matter from wastewater;
(19) Imhoff Tank. A deep two story wastewater tank consisting of an upper sedimentation chamber and a lower sludge digestion chamber.
(20) Instrumented Flow Measurement. A device which indicates and records rate of flow;
(21) ion Exchange. A chemical process in which ions from two different molecules are exchanged;
(22) Land application:
(a) Siudge Disposal, A final sludge disposal method by which wet sludge may be applied to land either by spraying on the surface or by subsurface Injection
(I.e., chisel plow); [not appiscable for types of sludge described In (1 1) of this Rule);
(b) Treated Effluent. The process of spraying treated wastewalar onto a Lard area or other methods of application of wastewater onto a land ansa as a
meads of finial disposal or treatment;
(23) Microscreen>. A iow speed, contirwoushy back -washed, rotating drum filter operating under gravity conditions as a polishing method for removing
suspended solids from effluent;
(24) Nitrification Process. The biochemical conversion of unoxidized nhrogen (ammonia and organic nitrogen) to oxidized nitrogen (usualiy nitrate);
(25) Nitrogenous Stage- A separate stage of wastewater treatment designed for the specific purpose of converting ammonia nitrogen to nitrate nitrogen;
(26) Phosphate Removal, Biological. The removal of phosphorus from wastewater by an oxWanoxlc process designed to enhance luxury uptake of phosphorus
by the microorganisms;
(27) Polishing Pond. A holding pond following secondary treatment with sufficlent detention qme to allow settling of finely suspended !solids;
(28) Post Aeration. Aeration following conventional secondary treatmera units to Increase effluent D.O. or for any other purpose;
(29) Post Aeration. (Cascade) A polishing mathod by which dissolved oxygen is added to the ellleert by a nonmechanical, gravity means of flowing down a
series of steps or weirs; The flow occurring across the steps or weirs naves in a fairly thin layer and the operation of the cascade requires no operator
adjustment; thus, zero points are assigned even though this Is an essential step to meeting the limits of the discharge permit;
(30) Powdered to Granular Activated Carbon Feed. A biophysical carbon process that utilizes biological activity and organic absorption by using powdered or
granular actfvated carbon; Virgin or regenerated carbon is feed controlled Into the system;
(31) Preasrat€on. A tank constructed to provide aeration prior 10 primary treatment;
(32) Preliminary Unfits. Unit operations In the treatment process, such as screening and comminution, that prepare the liquor for subsequent major operations;
(33) Industrial Pretreatment.
(a) Pre-treatment Unit, Industrial. The conditioning of a waste at its source before discharge, to remove or to neutralize substances injurious to sewers and
treatment processes or to effect a partial reduction in bad on the treatment process which is operated by the same governing body as the wastewater
treatment plart being rated;
b) Pre-irsatment Program, Industrial - must be a State or EPA required program to receive points on the rating shoot;
(34) Primary Clarifiers. The first settling tanks through which wastewater is passed in a tramment works for the purpose of removing settleable and suspended
solids and BOD which is associated with the solids;
(35) Pumps. All Influent, effluent and implant pumps;
(36) Radiation. Disinfection or sterilization process utilizing devices emitting ultraviolet or gamma rays;
(37) Reverse Osmosis. A treatment process In which a heavy contaminated liquid is pressurized through a marnbranle forming nearly pure liquid free from
suspended solids;
(38) Rotating Biological Contractors. A fixed biolog€cal growth process in which wastewater flows through tanks In which a series of partially submerged circular
surfaces are rotated;
(39) Sand Filters:
(a) Intermittent Biological. Filtration of effluent following septic tanks, lagoons, or some other treatment process In which further bbdecomposftion is
expected to produce desired effluents; Hydraulic loading rates on these fihers are computed in gpd/ac and have a resuhing low gpm✓sf (less than one);
b) Rec€rcutating biological - the same type of sand filter as defined In Subparagraph (32) (a) of this Rule with the added capability to recycle effluent back
through the sand filter,
(40) Sand or Mixed -Media Filters. A polishing process by which effluent limits are achieved through a further reduction of suspended solids;
(a) low rate — gravity, hydraulically loaded fitter with loading rates in the one to three gprrVM range;
(b) high rate — a pressure, hydraulically loaded filler with loading rates In the five gpm/sf range; At any rate, the ioading rate will exceed three gprtvsf;
r41) Secondary Clariiiera. A tank which follows the biologicaf unit of treatment plant and which has the purpose of removing sludges associated with the
iolog#cal treatment units;
42) Separate Sludge Reaeration. A part of the contact stabilization process where the activated sludge Is transferred to a tank and aerated before returning It
to the contact basin;
(43) Septic Tank. A single -story settling tank in which settled sludge Is In contact with the wastewater fiowing through the tank; shelf not be applicable for
septic tank systems serving single family residences having capac€ry of 2,000 gallons or fess which discharge to a nitrification field;
(44) Sludge Digest€on. The process by which organic or volatile matter and sludge is gasi led, liquefied, mintarat€zed or converted Into more stable organic matter
through the activity of living organisms, which Includes aerated holding tanks;
(45) Sludge Drying Beds. An area comprising natural or artilicial layers of porous materials upon which digested sewage sludge Is dried by drainage and
evaporation•
(46) Sludge�Elutriatlon. A process of sludge conditioning In which certain constituents are removed by successive washings with fresh water or plant effluent;
(47) Sludge Gas UtIlIzatforL The process of using sewage gas for the purpose of heatlnlg buildings, driving erlgiries, etc.;
(48) Sludge Holding Tank (Aerated and Nonaerated). A tank utilized for small wastewater treatment plants rat containing a digester In which sludge may be
kept fresh, and supernatant withdrawn prior to a drying method (i.e. sludge drying beds); This may be done by adding a small amours of air simply to keep the
sludge fresh, but net necessarily an amount that would be required to achieve stabilization of organic matter. A nonaeraled tank would simply be used to
decant sludge prior to dewatering and would not allow long periods (several days of detention) without resulting odor problems;
(49) Sludge Incinerators. A furnace designed to bum sludge and to remove all moisture and combustible materials and reduce the sludge to a sterile ash;
(50) Sludge StabUzalion (Chemical or Thermal). A process to make treated sludge less odorous and putrescble, and to reduce the pathogenic organism
content; This may be done by pH adjustment, chlorine dosing, or by heat treatment;
(51) Sludge Thickener. A type of sedimentation tank In which the sludge is permitted to settle and thicken through agitation and gravity;
(52) Stabilization Lagoon. A type of oxidation lagoon In which biological oxidation of organic matter Is effected by natural transfer of oxygen to the water from
air (not a polishing pond);
(53) Stand -By Power Supply. On she or portable electrical generating equipment;
(54) Static Screerle. A stationary screen designed to remove solids, including non -biodegradable partkufate (floatable solids, suspended solids and BOD
reduction) from municipal and Industrial wastewater treatment systems;
(55) Tertiary Treatment. A stage of treatment following secondary which Is primarily for the purpose of effluant polishing; A settling lagoon or sand or coat filter
might be employed for this purpose;
(56) Thermal Pollution Control Device. A device providing for the transfer of heal from a fluid flowing in tubes to another fluid outside the tubes, or Vie versa;
or other means of regulating tlquld temperatures;
(57) Thermal Sludge Condiilorler. A conditioning process by which heat is added for a protracted period of time to Improve the dewaterabllhy of sludge by the
solub€lining and hydraullzing of the smaller and more highly hydrated sludge particles;
(58) Toxic Materials. Those wastes or combinations of wastes, Including disease -causing agents which after discharge and upon exposure, Ingestion, Inhalation
or assimilation Into arty organism, either directly from the environment or Indirectly by Ingestion through food chains, will cause death, disease, behavioral
abnormalities, cancer, genetic mutations, physiological malfunctions (including maffunct€ons in reproduction) or physical deformations. In such organisms ar their
offspring; Toxic materials Include, by way of Illustration and not limhailon: lead, cadmlum, chromium, mercury, vanadium, arsenle, zinc, ortho-nitro-chierobenzena
(ONCB), polychiorinaled biphenyls (PCBs) and dichioroclohenyl trichloroethane (DDT); and any other materials that have or may hereafter be determined to have
toxic pmpariies;
(59) Trickling Filter. A biologicat treatment unit consisting of a material such as broken alone or rock over which wastewater Is distributed, A high rate trickling
fiffer Is one which operated at between 10 and 30 mgd per acre. A low rate trickling filler Is one which is designed to operate at one to four mgd per acre;
'60) Trickling Miter (Packed Tower). A plug flow type of operation in which wastewater flows down through successive layers of media or filtrate malaria€; Orparrk
alerial Is removed continually by the active bk9oglcal fixed growth In each successive tayer.. This method may produce *secondary' quality effluent, or may be
3apted to produce a nilydied effluent;
(61) Vacuum Filter, Centrifuges, or Fitter Presses. Davicss which are designed to remove excess water from either digested or undigested sludge prior to disposal
or further treatment.