WQ0006984_Final Permit_19930226

State of Forth Carolina
Department of Environment, Health and Natural Resources
Division of Environmental. Management
512 North Salisbury Street • Raleigh, North Carolina 27604
James B. Hunt, Jr., Governor
February 26, 1993
John Oliver, Vice President of Finance
Delta Apparel, Inc.
Post Office Box 37 (408 S. Main Ave.)
Maiden, North Carolina 28650
Jonathan B. Howes, Secretary
Subject: Permit No. WQ0006984
Delta Mills, Inc., Maiden Plant
Land Application of Sludge
Catawba County
Dear Mr. Oliver:
In accordance with your application received September 8, 1992, we are forwarding herewith
Permit No. WQ0006984, dated February 26, 1993, to Delta Mills, Inc. for the continued operation of a
land application of sludge program.
This permit shall be effective from the date of issuance until January 31, 1998, shall void Permit
No. 7120R2 issued June 6, 1988 and shall be subject to the conditions and limitations as specified therein.
Please pay particular attention to the monitoring requirements 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 to you, you have
the right to request an adjudicatory hearing upon written request within 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.
Regional Offices
Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem
704/251-6208 919/486-1541 7041663-1699 9191571-4700 919/946-6481 919/395-3900 919/896-7007
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

If you need additional information concerning this matter, please contact !WF-Midhael<D. Allen at
[phone].
Sincerely,
A. Preston How Jr
Acting Diictor
cc: Catawba County Health Department
Mooresville Regional Office, Water Quality Section
Mooresville Regional Office, Groundwater Section
Jack Floyd, Groundwater Section Central Office
Training and Certification
Facilities Assessment Unit

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRON'rw"ENT, HEALTH AND NA i URAL RESOURCES
RA.LEIGH
SLUDGE 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
Delta Mills, Inc., Maiden Plant
Catawba County
10 , .1
operation of a sludge land application program consisting of the application of approximately 2.0 million
gallons per year of sludge from the Delta Mills, Inc., Maiden Plant wastewater treatment facility to
approximately 38.7 acres of land in Catawba County with no discharge of wastes to the surface waters,
pursuant to the application received September 8, 1992, 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 January 31, 1998, shall void Permit
No. 7120R2 issued June 6, 1988 and shall be subject to the following specified conditions and limitations:
rllllffu1:u:� I;110 1
This pen -nit shall become voidable if the soils fail to adequately absorb 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 pen -nit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
4. In the event that the land application program is not operated satisfactorily, including the
creation of nuisance conditions, the Permittee shall cease applying sludge to the sites and
take any immediate corrective actions, including the construction of additional or
replacement wastewater treatment or disposal facilities.
5. No crops for direct human consumption shall be raised on these sites for a period of 18
months following sludge application.

6. Maximum slope for sludge application shall be 10% for surface application and 18% for
subsurface applications.
7. The following buffer zones shall be maintained:
a) 4Ck"! feet from residences or places of public assembly under separate owmership cr
surface application 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,
b) 200 feet from residences or places of public assembly under separate ownership for
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 "SA and SB" classified waters and public surface water supplies for
both methods,
d) 50 feet from "WS" classified waters and other streams, creeks, lakes, rivers, and
surface water drainage ways for injection method,
e) 100 feet from "WS" classified waters and other streams, creeks, lakes, rivers and
surface water drainage ways for surface application method,
f) 100 feet from property lines for both methods; however, this requirement may be
reduced to 50 feet upon written concurrence from the adjoining property owner and
the appropriate DEM regional office,
g) 50 feet from public right of ways for surface application methods,
h) 25 feet from public right of ways for subsurface disposal methods,
i) 10 feet from upslope interceptor drains and surface water diversions for both
methods,
j) 25 feet from downslope. interceptor drains, surface water diversions, groundwater
drainage systems and surface drainage ditches for both methods.
Some of the buffers specified above may not have been included in previous permits
for this land application operation. Any sites or fields that are included in this permit,
but were approved with different applicable buffers, will continue to be regulated by
those originally approved buffers. All new sites and fields will be regulated by the
buffers specified above.
S. A copy of this permit shall be kept at the land application site when sludge is being applied
during the life of this permit. A spill prevention and control plan shall be kept in all sludge
transport and application vehicles.
9. Specific sludge application area boundaries shall be clearly marked on each site prior to and
during sludge application.
10. No sludge at any time shall be stored at any application site.
MENDTIMOM
1. The facilities and disposal sites shall be properly maintained and operated at all times.
2. A suitable vegetative cover as listed in condition 113, shall be maintained in accordance
with the crop management plan approved by this Division.
2

3. The application rates shall not exceed the following for the specified crops:
C= PAN (lbslacselvear�
Coastal Bermuda Grass 350
Fescue 250
4. No sludges other than the following are hereby approved for land application in accordance
with this permit:
Permit Estimated
SQMg ,_ County Number Volume (gallon year)
Delta Mills, Inc. Catawba NC0006190 2.0 Million
Maiden Plant
5. The lifetime heavy metal loadings shall not exceed the following for the corresponding
Cation Exchange Capacities (CEC):
ParameterCEC
< 5
CEC 5 - 15
CEC > 1
Lead
500
1000
2000
Zinc
250
500
1000
Copper
125
250
500
Nickel
125
250
500
Cadmium
4.5
9
18
6. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202.
7. Adequate procedures shall be provided to prevent surface runoff from carrying any
disposed or stored sludge material into any surface waters.
8. Animals shall not be grazed on sludge applied land within a 30-day period following the
sludge application. Application sites that are to be used for grazing shall have fencing that
will be used to prevent access after each application.
9. Surface applied sludge 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, sludge may be
applied only during periods of dry weather. The sludge must be incorporated into the soil
within twenty-four (24) hours of application.
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 sludge 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 sludge application area onto the adjacent property or into the
surface waters.
3

13. Sludge shall not be applied in inclement weather or until 24 hours following a rainfall event
of 1/2-inch or greater in 24 hours. Any emergency sludge disposal measures must first be
approved by the Division of Environmental Management.
14. The site shall be adequate!- limed to a soil plT of at least 6.5 prior to sludge application.
Sludge may be applied ►o Yites vAth a p-? of c.,s than 6.5 prop-.&ed a sufficient an,.our,t of
lime is also applied to achieve a final pH of the lime, sludge anct soil mixture of at least 6.5.
1. Any monitoring (including groundwater, surface water, sludge, 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. If monitoring data indicates minimal or no concern to the
Division, reduction of monitoring requirements may be pursued after two annual reporting
periods.
2. Proper records shall be maintained by the Permittee tracking all disposal activities. These
records shall include, but are not necessarily limited to the following information:
a) source of sludge
b) date of sludge application
c) location of sludge application (site, field, or zone #)
d) method of application
e) weather conditions
f) soil conditions
g) type of crop or crop to be grown on field
h) volume of sludge applied in gallons/acre and dry tonsfacre
i) annual and cumulative totals of dry tons/acre of sludge, annual and cumulative
pounds/acre of each heavy metal (which shall include, but not be limited to lead,
nickel, cadmium, copper 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 sludge 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:
% Base Saturation
Magnesium
Phosphorus
Potassium
Leadl
Zincl
pH
Manganese
Cation Exchange Capacity
Sodium
Nickell
Cadmiuml
Coppers
Calcium
l Soils analysis for these parameters shall be conducted once prior to permit renewal on
soils from each site which has received sludge during the permit cycle.
4

4. A quarterly sludge analysis and annual Toxicity Characteristics Leaching Procedure
(TCLP) analysis shall be conducted 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 quarterly, sludge analysis wi_11 be required for each Instance of land. application.
The siudgc analysis shall include but is not necessarily limited to tine wi;awing parameters:
% total solids
Magnesium
Chlorides
Sulfate
Phosphorus
Potassium
Lead
Zinc
Copper
Nickel
Cadmium
Chromium
Sodium
Calcium
Total Nitrogen
Ammonia Nitrogen
NitraWNitrite Nitrogen
pH
Plant Available Nitrogen (by calculation)
The TCLP analysis shall include the following parameters:
Arsenic
Barium
Benzene
Cadmium
Carbon tetrachloride
Chlordane
Chlorobenzene
Chloroform
Chromium
o-Cresol
m-Cresol
p-Cresol
Cresol
2,4-D
1,4-Dichlorobenzene
1,2-Dichloroethane
1,1-Dichloroethylene
2,4-Dinitrotoluene
Endrin
Heptachlor (and its hydroxide)
Hexachlorobenzene
Hexachloro-1,3-butadiene
Hexachloroethane
Lead
Lindane
Mercury
Methoxychlor
Methyl ethyl ketone
Nitrobenzene
Pentachlorophenol
Pyridine
Selenium
Silver
Tetrachloroethylene
Toxaphene
Trichloroethylene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4,5-TP (Silvex)
Vinyl chloride
5. Three copies of all monitoring and reporting requirements as specified in conditions 1111,
1112, 1113 and 1114 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

6. Noncompliance Notification:
The Permittee shall report by telephone to the Mooresville Regional Office, telephone
number [phone] as soon as possible, but in no case more than 24 hours or on the
next working day following the occurrenoe or first knowledge of the occurrence of any of
the fol:owirLg:
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 sludge 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 sludge treatment.
e. Any spillage or discharge from a vehicle or piping system transporting sludge 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.
'i ►1•i � a• U �
1. Monitoring wells #1, #2, #3 and the domestic well on the Jenkins property, hereafter #4 as
indicated on Attachement A, shall be sampled every March, June, September and December
for the following parameters:
TOC
Copper
pH
Water Level
Chloride
Chromium
Manganese
Phenol
Iron
Zinc
Specific Conductance
Volatile Organic Compounds - by Method 1 or Method 2 below:
Method 1: Method 6230D (Capillary - Column), "Standard Methods For The
Examination of Water and Wastewater", 17th ed., 1989.
Method 2: Method 502.2 "Methods For The Determination of Organic
Compounds in Drinking Water", U.S. EPA - 600/4-88/039.
The measurement of water level must be made prior to sampling for the remaining
parameters.
The measuring points (top of well casing) of all monitoring wells shall be surveyed to
provide relative elevations of the measuring point for each monitoring well. These
elevations shall be provided to the Regional Hydrogeologist within 60 days after
construction. The depth of water in each well shall be measured from the surveyed point
on the top of the casing.
0

If TOC concentrations greater than 10 mg/I are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TOC concentration. If the TOC concentration as measured in
the background monitor well exceeds 10 mg/l, this concentration will be taken to represent
the naturally occurring TOC concentration. Any exceedc.:ces of this naturally occurring
TOC c.,ncen+.-r" rn in the downgradient wells shall be subject to the additional sampling
and anaiysis as described above.
If any volatile organic compounds are detected by method 6230D, or the equivalent method
502.2, then EPA methods 604 and 611 must also be run to detect other organic compounds
which may be present. The results of all analyses specified in the monitoring requirements,
including 604 and 611 if required, must be submitted simultaneously.
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management on Form GW-59 (Compliance Monitoring Report Form) every
April, July, October and January.
2. The Compliance Boundary delineated on the attached site map for the disposal system is
specified by regulations in 15A NCAC 2L, Groundwater Classifications and Standards.
An exceedance of Groundwater Quality Standards beyond the Compliance Boundary is
subject to the penalty provisions applicable under General Statute 143-215.6(1)a. The sale
of property, by the Permittee, which is within or contiguous to thedisposal site, may alter
the location of the Compliance Boundary.
For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the application area, or 50 feet within the property
boundary.
If the title to any property which may affect the location of the Compliance Boundary is
changed, the Permittee shall notify the DEM Director within 14 days. The Director shall
then establish a modified Compliance Boundary which will be done as a modification to the
Permit.
The REVIEW_ BOUNDARY delineated on the attached site map for the disposal system is
specified by regulations in 15 NCAC 2L, Groundwater Classifications and Standards. A
REVIEW BOUNDARY is established around disposal systems midway between the
Compliance Boundary and the perimeter of the waste disposal area. When the
concentration of any substance equals or exceeds the maximum allowable concentration of
that substance at the REVIEW BOUNDARY, as determined by monitoring, the permittee
shall gilhar (i) demonstrate, through predictive calculations or modeling, that natural site
conditions, facility design and operational controls will prevent a violation of standards at
the Compliance Boundary; (LT, (ii) submit a plan for the alteration of existing site
conditions, facility design or operational controls that will prevent a violation of standards
at the Compliance Boundary, and implement that plan upon its approval by the Director.
3. No land application of waste activities shall be undertaken when the seasonal high water
table is less than three feet below land surface.
4. Any additional groundwater quality monitoring as deemed necessary by the Division of
Environmental Management shall be provided.
7

[�►�+�7� I�CI�lF.�
1. The Permittee or his designee shall inspect the sludge storage, transport, and disposal
f"acilit to prevent malfunctions and deterioranon, ep;;rut r errors and d;'scharges « ,1ch
may cause or lead to the release of wastes to t'ae erviron_ment, a thr-.-t, to uxi n health, or a
nuisance. The Permittee shall keep 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 Pemuttee
for a period of three years from the date of the inspection and shall be made available upon
request by the Division of Environmental Management or other permitting authority.
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 disposal site and 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; or may obtain samples of
groundwater, surface water, or leachate.
f DINO to)►
l . This permit shall become voidable unless the land application activities are carried out in
accordance with the conditions of this permit 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.
3. This permit is not transferable. In the event 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. This permit shall become voidable unless the agreements between the Permittee and the
landowners/lessees are in full force and effect.
5. The following are approved sites for sludge application (see attached map(s)):
Owner/Lessee Application Area (acres)
Delta Mills, Inc. 12.71
Jenkins Propery 26.02
1 By subsurface land application
2 By surface land application
6. 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 143-215.6A to 143-215.6C.
7. 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).
8

8. 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.
9. A svt of approved aocuments for the subject protect must be retained by the Pnplicant for
friE life Of &1e PCM111 L
10. 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.
11. 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.
Permit issued this the 26th day of February, 1993
TH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston Howar .,'P.E.cti g Director
Division of Environmen , ana ent
By Authority of the Environmental Management Commission
Permit No. WQ0006984
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Mailing Address: D, I t
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Te!ephone:
NPDES Permit No. NCOO Nondisc. Per. No. kVQ oQa 6g2q-
lssueDate: �_4 Expiration Date:
Existing Facility New Facility
Rated By:Date:_ t�ii(9(9-i _
Reviewed (Train. & Cert.) Reg. Office
Reviewed (Train. &. Cert.) Central Office
ORC Grade
Plant Class: (circle one)
II Il IV Total Points
ITEM POINTS
(5) SECONDARY TREAT :PENT UNITS
(a) Carbonacec-s Stage
(1)
Industrial Pretreatment Units and/or
(i)Aeratior, - High Purity Oxygen System , ....
2C-
Industrial Pretreatment Progra.ii
Diffused Air System ...........
1 0
(see delinition No. 33)
4
Mechanical Air System (fixed,
(2)
DESIGN FLOW OF PLANT IN GPD
�
to non -contaminated cooling waters, sludge
9
floatingor rotor )
not applicable 9
( PP
a
Separate Sludge I3eaeralion . " .. .
handling facilities for water purification plants, totally
r (ii) Tricklir•,g Filter i
closed cycle systems (def. No. 11), and facilities
High Bate ...................
consisting only of Item (4) (d) or Items (4) (d) and (11)
(d))
Standard Rate ...............
5
0 20.000.......... _ _ ............
1
Packed Tower ...............
5
20,001 -- 50,000 ..........................
2
(iii) Biological Aerated Filter or Aerated
50.001 100,000 ..........................
3
Biolopi_-Gl Filler ......................
1 0
100.001 -- 250.000..........................
4
(iv) Aerates Lagoons ............ .........
10
250,001 -- 500,000 ........... " ..............
5
500,001--1,000,000 ...................... . ...
(v) Rotaling Biological Contactors ..... _ ....
10
1.000.001 -- 2,000,000 .... ...................
1
2,000,001 (and up) - rate 1 point additional for each
(vi) Sand Fiiters-
200,000 gpd capacity up to a
intermittent biological .....
2
maximum of 30
recirculating biological .....
3
(3)
Design Flow (gpd) 1 r3nc a
PRELIMINARY UNITS (see definition no-;--r. 32)
(vii) S;abifzation Lagoons .................. .
(viii)Clarifie...............................
(a) Bar Screens .......................
(ix) Single stage system for combined
or
carborceous removal of BOD and
(b) Mechanical Screens, Static Screens or
nitrogenous removal by nitrification
Comminuting Devices ..... . ..... .............
2
(see del. No. 12) (Points for this item
(c) Grit Removal .. __ _ ........ " .................
1
have to be in addition to items (5) (a)
or
(i) through (5) (a) (vii) .................
(d) Mechanical or Aerated Grit Removal ...........
2
(x) Nulrien: additions to enhance BOD
(e) Flow Measuring Device .......................
1
remova? ...............................
5
or
Instrumented Flow Measurement
©
(xi) Biological Culture (`Super Bugs-) addition
'to
(1) ..............
enhance organic compound removal .....
5
(g) Preaeration .... . ...........................
2
(b) Nitrogenous Stage
(i) Aeraticri - High Purity Oxygen System
20
(h) Influent Flow-Equalizalion .. " ............. " ..
2
Diflused Air System ...........
(i) Grease or Oil Separators - Gravity .. " .......
2
Mechanical Air System (fixed,
Mechanical " ...... " ..
3
floating, or rotor) . _ .... .....
8
Dissolved Air Flotation"
B
Separate Sludge Reaeration .....
3
6) Prechlorinalion ........................ . .....
5
01) Trickling Filler -
High Rate ..............
7
(4)
PRIMARY TREATMENT UNITS
Standard Rate ............
5
(a) Septic Tank (see definition no. 43) ..............
2
Packed Tower .......... _ .
5
(b) Imhoff Tank ..................................
5
(iii) Biological Aerated Filler or Aerated
(c) Primary Clarifiers . ...........................
5
Biological Filter .........................
10
(d) Settling Ponds or Settling Tanks for Inorganic
{iv) Rolatir,,. Biological Contactors ............
10
Non•loxic Materials (sludge handling facilities
(v) Sand Filter -
for water purification plants, sand, gravel,
intermittent biological .......
2
stone, and other miningoperations except
recirculating biological . "
3
recreational activities such as gem or gold
(vi) Clarilier ....... .
5
mining) ...................................... 2
................... " ....

{6} I ERTIARY OR ADVANCED TREATMENT UNIT
(10) CHEMICAL ADDITION SYSTEM (S) {See definition No. 9)
(a)
Aetivatzd Carbons Beds -
(nqt applicable to chemical additions rated as ilerr !
without carbon regeneration ..................
5
(3) 6). (5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) (e),
with carbon regeneration ....................
is
(9) (a). (9) (b), or 19) (c) 5 points each: List:
.b)
Powdered or Granular Activated Carbon Feed -
5
without carbon regeneration .................
5
Wit;, CM11..o-: repenera.:,) ....................
15
5
tc)
Air Strip: •;' ....... ...............
5
5
(d)
Denitriiication Process (separate process) .... -
10
(e)
Electrodialysis _ _ ...... _ . . ..................
5
(11) MISCELLANEOUS UNITS
(t)
Foam Separation ............................ _
5
(a) Holding Ponds, Holding Tanks or Settling Ponds
(9)
ton Exchange ..... ...........................
5
for Organic or Toxic Materials including wasles
(h)
Land Application of Treated Effluent
from mining operations containing nitrogen and/or
(see definition no. 22b) (not applicable for
phosphorous compounds in amounts significonlly
sand, gravel. Slone and other similar mining
greater than is common for domestic wastewater .......... 4
operations)
(b) Effluent Flow Equalization (not applicable to storage
(i) on agriculturally managed sites (See der,
basins which are inherent in land application systems). 2O
No. 4) . ...... .......................... . .
1 0
(c) Stage Discharge (not applicable to storage basins
(ii) by high rate inriltration on non-agricullurally
inherent in land application systems ............. ................ 5
sites includes rolar distributors
managedIY
{d} Pumps..._.....:..........................................................................._.-...._..... 3
and similar fixed nozzle systems) ........... 4
(iii) by subsurface disposal (includes low pressure
(e) Stand -By Power Supply..................................................................
(f) Thermal Pollution Conlrol Device .................... 3
pipe systems and gravity systems except at
plants consisting of septic lank and nitrifica-
tion lines only) .............................
4
TOTAL POINTS -�
(i)
Microscreens..................................
5
(j)
phosphorus Removal by Biological Processes
CLASSIFICATION
(See def. No.26) .......................
20
(k)
Polishing Ponds - without aeration .......
2
Class I ............... ........................... .............. 5 - 25 Points
with aeration ..........
5
Class 11...................................... ............ 26- 50 Points
(1)
Post Aeration - cascade ..............
0
Class III ......... _ ........................ ... 51- 65 Points
diffused or mechanical ...
Class IV_ ......................... .. __.-_......- 66- Up Points
(m) Reverse Osmosis ........ . ..................... .
(n)
Sand or Mixed -Media Fitters - low rate .... _ _ .....
2
Facilities having a rating of one through four points, inclusive,
high rate ..........
5
do not require a certified Operator. Classification of all other
(o)
Treatment processes for removal of metal or
facilities requires a comparable grade operator in responsible
cyanide ....................................
15
charge.
Treatment processes for removal of toxic
materials other than metal or cyanide .........
15
Facilities having an activated sludge process will be assigned
a minimum classification of Class 11,
SLUDGE TREATMENT
(a)
Sludge Digestion Tank - Healed ...............
10
Aerobic ...............
5
Unheated .............
3
(b)
Sludge Stabilization (chemical or Thermal) .... ...
5
(c)
Sludge Drying Beds - Gravity .................
2
Vacuum Assisted .......
5
(d)
Sludge EluWation .............................
5
(e)
Sludge Conditioner (chemical or thermal) ........
5
(f)
Sludge Thickener (gravity) ......................
5
(g)
Dissolved Air Flotation Unit
(not applicable to a unit rates as (3) (i) .........
8
(h)
Sludge Gas Utilization (including gas storage) ....
2
(i)
Sludge Holding Tank - Aerated ................
5
Non -aerated ............
2
(j)
Sludge Incinerator - (not including activated
carbon regeneration) .....
10
(k)
Vacuum Filler, Centrifuge or Filler Press or other
similar dewatering devices ....................
10
,S) SLUDGE DISPOSAL (including incinerated ash)
(a) Lagoons..... ...................................
2
(b)
Land Application (surface and subsurface)
4$ee definition 22a)
holds the land app.
10
r
-where the facility permit - . _
'-by contracting to a land application operator who
holds the land application permit ................
2
-land application of sludge by a contractor who does
not hold the permit for the wastewater treatment
facility where the sludge is generated ......... 10
(c) Landfilled (burial) ............................. 5
(9) DISINFECTION �<
(a) Chlorination ........................ .....
(b) Dechlorination ........................ 5
(c) Ozone .............................. 5
(d) Radiation .......................... 5
Facilities having treatment processes for the removal of metal
or cyanide will be assigned a minimum classification of Class II.
Facilities having treatment processes for the biological removal
of phosphorus will be assigned a minimum classification of Class
Ill.
In -plant processes and related control equipment which are an
integral part of industrial production shall not be considered waste
treatment. Likewise, discharges of wastewater from residences
having a design flow of 1,000 gpd or less, shall not be subject to
rating.
DDITI NA MM NT •
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