WQ0006932_Final Permit_19930226

rly
State of North 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
Ms. Helen Sonenshine, President
Professional Laboratories & Research Services, Inc.
1366 Little Neck Road
Virginia Beach, Virginia 23452
Dear Ms. Sonenshine:
Jonathan B. Howes, Secretary
Subject: Permit No. WQ0006932
Professional Laboratories &
Research Services, Incorporated
Animal Testing Facility, Corapeake NC
Wastewater Spray irrigation Facility
Gates County
In accordance with your application received August 28, 1992, we are forwarding herewith Permit
No. WQ0006932 dated February 26, 1993, to Professional Laboratories & Research Services,
Incorporated for the construction and operation of the subject lagoon treatment and spray irrigation
facilities for animal wastewater disposal.
This permit shall be effective from the date of issuance until January 31, 1998, 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 nearing 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 919/5714700 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

One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contactM-Mehn,Seymour at 919/ 733-5083.
14 estop Ho r., P
Acting Director
cc: Gates County Health Department
Washington Regional Office, Water Quality
Washington Regional Office, Groundwater
Groundwater Section, Jack Floyd
Training and Certification Unit
Stroud Engineering, P.A.
Facilities Assessment Unit

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMLENT OF Et° V ROMNILNT, Hzvlt._, TH AND NATURAL RES017,CES
RALEIGH
SPRAY IRRIGATION SYSTEM 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
Professional Laboratories & Research Services, Inc.
Gates County
FOR THE
construction and operation of a 4,500 GPD animal wastewater treatment and spray irrigation facility
consisting of a solids separation basin, approximately 400 feet of 6 inch gravity sewer line, a 100 GPM
pump station with dual pumps and high water alarms, approximately 1,580 feet of 4 inch force main, a
398,235 gallon treatment/ storage lagoon with an 18 inch clay liner, a 38,670 gallon pumping basin with
an 18 inch clay liner, an 80 gpm spray irrigation pump station with a 20 gpm recycle pump (for pumping
wastewater back to buildings for reuse) and 3 inch manifold to the irrigation fields, three irrigation fields to
be constructed in three (3) phases consisting of phase 1 being 2.65 acres, phase 2 being 1.65 acres and
phase 3 being 2.98 acres totaling 7.28 acres (all cleared grasslands), a total of 88 spray heads for all three
spray fields, and all associated piping, valves, controls and appurtenances to serve Professional
Laboratories & Research Services, Incorporated's Animal Testing Facility at Corapeake, North Carolina
with no discharge of wastes to the surface waters, pursuant to the application received August 28, 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, and shall be subject
to the following specified conditions and limitations:
I. PERFORMANCE STANDARDS
1. Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
29535, Raleigh, NC 27626-0535.
2. The Washington Regional Office, phone no. 919/ 946-6481 shall be notified at least forty-
eight (48) hours in advance of operation of the installed facilities so that an in -place
inspection can be made. Such notification to the regional supervisor shall be made during
the normal office hours from 8:00 a.m, until 5:00 p.m. on Monday through Friday,
excluding State Holidays.

3. The spray irrigation facilities shall be effectively maintained and operated at all tunes so
that there is no discharge to the surface waters, nor any contamination of ground waters
which will render them unsatisfactory for normal use. In the event that the facilities fail to
PM.fbrm sate-factorily, inCluding t -- creation of nWsantic con —,k na J �_.t�t� r f �y ofthe
re C3"z�
ar�;atiort area to s.dequ__tFly aborts tEe'astc�'ai; the der i�t �... ;;Ra,. t i such
corn-ecdve action to correct the problem, including actions as m: be regalMa 'by the
Division of Environmental Management.
4. 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 facility.
5. The sludge generated from these treatment facilities must be disposed of in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.
6. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
7. The following buffers shall be maintained:
a) 400 feet between wetted area and any residence or places of public assembly under
separate ownership,
b) 150 feet between wetted area and property lines,
c) 100 feet between wetted area and wells,
d) 100 feet between wetted area and drainageways or surface water bodies,
e 50 feet between wetted area and public right of ways,
100 feet between wastewater treatment units and wells,
g) 50 feet between wastewater treatment units and property lines.
S. The loading of the three spray irrigation fields shall be calculated at an application rate of
400 pounds per acre per year with Coastal Bermuda Grass having an uptake rate of 350
pounds PAN per acre year and Rye Grass having an uptake rate of 250 pounds PAN per
acre year. The spray fields shall never be overloaded.
9. In determining the compliance with PAN for the maximum number of animals all the
factors listed below must be. used:
a) number and type of animal
b) total nitrogen produced per pound of animal,
c) Lagoon reduction,
d) percent PAN per pound of total nitrogen,
e) amount of spray field in service.
1. The facilities shall be properly maintained and operated at all times.
2

2. 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
treatrn, tit faci. ! s by the Certiflcation C:orzmi2sioa . The P,;rriiuc­ ; iimst also er;z:.ioy a
ccrtif1,-dbck-up operator of t.,e approph tf type, an ' g?'aG';' to co. -Lply w: t. e ccrndi iotzs
of TILIi. 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.Once
the facility is classified, the Permittee must submit a letter to the Certification Commission
which designates the operator in responsible charge within thirty days after the wastewater
treatment facilities are 50% complete.
3. A suitable vegetative cover of Bermuda grass and Rye grass shall be maintained.
4. Irrigation shall not be performed during inclement weather or when the ground is in a
condition that will cause runoff.
5. Adequate measures shall be taken to prevent wastewater runoff from the spray field.
6. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
7. The average annual weekly application rate shall not exceed:
0.146 inches for phase 1
0.234 inches for phase 2
0.130 inches for phase 3
at an instantaneous application rate not to exceed 0.06 inches per hour.
8. No type of wastewater other than that from animal wastes at the Animal testing Facility at
Corapeake, North Carolina, shall be sprayed onto the irrigation area.
9. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
10. Public access to the land application sites shall be controlled during active site use. Such
controls may include the posting of signs showing the activities being conducted at each
site.
1. Any monitoring (including groundwater, surface water, soil or plant tissue analyses)
deemed necessary by the Division of Environmental Management to insure surface and
ground water protection will be established and an acceptable sampling reporting schedule
shall be followed.
3

2. Adequate records shall be maintained by the Permittee tracking the amount of wastewater
disposed. These records shall include, but are not necessarily limited to the following
information:
a) datc e'L it gallon,
b) voiume of wastewater irrigated,
c) field irrigated,
d) length of time field is irrigated,
e) continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for
each field,
f) weather conditions, and
g) maintenance of cover crops.
3. The effluent from the subject facilities shall be monitored by the Permittee at the point prior
to irrigation every February, June, and September for the following parameters:
BOD5 Fecal Coliform
pH NH3 as N
Total Suspended Solids Total Nitrogen
PAN
4. Three copies of all operation and disposal records (as specified in condition III 2) and all
effluent monitoring data (as specified in condition IIl 3) and any other data as may be
required shall be submitted on or before the last day of the following month to the
following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
5. Noncompliance Notification:
The Permittee shall report by telephone to the Washington Regional Office, telephone no.
919/ 946-6481 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 at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such
as the dumping of the contents of a sludge digester, the known passage of a slug of
hazardous substance through the facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate wastewater treatment such as mechanical or electrical failures
of pumps, aerators, compressors, etc.
C. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-
pass directly to receiving waters without treatment of all or any portion of the
influent to such station or facility.
d. Any time that self -monitoring information indicates that the facility has gone out of
compliance with its permit limitations.
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.
4

1. Prior to begins ;.g waste disposal operations, thr= .� (3) monitor wells, one (1) upgradient
and two (2) downgradient, shall be installed to monitor groundwater quality. The well(s)
shall be constructed such that the water level in the well is never above or below the
screened (open) portion of the well at any time during the year. However, the exact
location and construction details for these wells shall be approved by the Washington
Regional Office, from which a well construction permit must be obtained.
2.. The monitor wells must be sampled initially after construction (and prior to waste disposal
operations) and thereafter every February, June and September for the following
parameters:
NO3
TOC
Ammonia Nitrogen
Water Level
COD
TDS
NO2
pH
Chloride
Fecal Coliforms
Total Suspended Solids
Volatile Organic Compounds - In September only ( by Method 1 or Method 2
below)
Method 1: Method 6230D ( Capillary - Column), "Standard Methods for the
Examination of Water and Wastewater", 17th edition, 1989
Method 2: Method 502.2 " Methods for the Determination of Organic Compounds
in Drinking Water", United States Environmental Protection Agency -
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 of the monitoring wells. These
elevations shall be provided to the Regional Hydrogeologist within 60 days after well
construction. The depth of water in each well shall be measured from the surveyed point on
the top of the casing.
If TOC concentrations greater than 10 mg/l 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 back ound monitor well exceeds 10 mg/l, this concentration will be taken to represent
the naturally occurring TOC concentration. Any exceedances of this naturally occurring
TOC concentration in the downgradient wells shall be subject to the additional sampling
and analysis 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 analysis 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
March, July, and October.
5

3. The Compliance Boundary delineated on the attached site plan for the disposal system is
specified by regulations in 15 NCAC 2L, Classifications and Water Quality Standards
ar lic lfle to tl� . °o:�nrwater of North Caroli. a. An excexvdance of Groundwater Quality
beyond the: Ccmpliarci�. Boundary s-: subject to pc salty pro-i.sions applicable
u (:cr G-merall Statute l43-215.6A. "r*ize salt, of ;o b�� t R P�rn= h ' { �` �i'wrty, �'� av V �4t�...y wh;.cA .��; `.thin
or contiguous to the disposal system site may alter 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 lagoon and spray field, 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 Division Director within 14 days. The Director shall
then establish a modified Compliance Boundary which will be done as a modification to the
Permit.
The RE)7,�W BOUNDARY delineated on the attached site map for the disposal system is
specified by regulations in 15 NCAC 2L, Groundwater Classifications and Standards. A
REVMW AR 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 BQIJNDARY, as determined by monitoring, the permittee.
shall either (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; or, (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.
4. The lagoon shall have a liner of natural material at least one (1) foot in thickness,
compacted to 95% proctor standard dry density and installed and compacted in layers no
thicker than six inches, at all locations with a hydraulic conductivity of no greater than 1 x
10-7 centimeters per second. Following installation and inspection of the lagoon liner, and
prior to waste disposal operations, verification of the liner's compliance with hydraulic
conductivity and thickness specifications must be provided to the Division of
Environmental Management, Groundwater Section, by the project engineer.
5. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
V . INSPECTIONS
1. Adequate inspection; maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal 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 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 Permittee for a
period of three years from the date of the inspection and shall be made available upon
request to the Division of Environmental Management or other permitting authority.
no

3. 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
purrose of determining compliance with this -)ermit; a ^R• inspect or copy any record- `h-,t
mush be kcpt th-: +.e.rrns and c.onditicns of tl i permir; or may obtain sarnpies of
groundwater, surface water, or icachate.
' ► PLANi►.
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans, specifications, and other supporting data.
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 there is 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. 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.
5. 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.
6. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of the project.
7. The annual administering and compliance fee must be paid by the Permittee within thirty
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 211,0205 (c)(4).
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.
Permit issued this the 26th day of February, 1993
CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
` . Preston Howefd, Y.
Division of Envir e
By Authority of the Er
Permit Number WQ0006932
ing
Management Commission
7

Permit No. WQ0006932
February 26, 1993
EDzint-c-i's cat on
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project,
Project Name
Location
for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of the approved plans and specifications.
Signature
Date
Registration No.

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RATING SCALE -FOR CLASSIFICATION OF FACILITIES
Name of Plant: SS root �.�— L&—A
n,ica
_-
Owner or Contact Person: -L
= 5 ry
Mailing Address: L,-r7 r44c
o
-
CaurlTe I ephone.
"' 4S;E5-'Efs
NPDES Permit No, NCOO Nondisc.
Per. No.-IrctNcep6Gz�
Issue Date: Expiration
Date:
Existing Facility New Facility -
Rated By-, Date:
I t - 9
Reviewed (Train. & Cert.) Reg. Office
Reviewed (Train. & Cerl.) Central Office
ORC Grade
Plant Class: (circle one) 11 I11
IV Total Points_
ITEM
POINTS (5) SECONDARY TREATMENT UNITS
(a) Carbonaceous Stage
(1)
Industrial Pretreatment Units and/or
(i)Aeralion - High Purity Oxygen System _ ....
20
Industrial Pretreatment Program
Diffused Air System ...........
10
(see definition No. 33) 4
Mechanicat Air System (fixed,
(2)
QGSlrQN FLOW OF PLANT IN GPD
floating or rotor) ..............
8
(not applicable to non -contaminated cooling waters, sludge
Separate Sludge Reaeration
3
handling facilities for water purification plants, totally
(ii) Trickling Filler
closed cycle systems (def. No. 11). and facilities
High Rate ...................
7
consisting only of Item (4) (d) or Items (4) (d) and (11) (d))
Standard Rate .
5
0 -- 20,000 ......................: ... �
Packed Tower ...............
5
20.001 — 50,000............ ..
(iii) Biological Aerated Filter or Aerated
50,001 — 10D,000 ........ » ................. 3
Biological Filter ......................
10
100,001 -• 250,000 ..... 4
250,001 -- 500,000.......................... 5
(iv) Aerated Lagoons ..................... .
10
500,001-•1,000,000 .......................... a
(v) Rotating Biological Contactors ..........
10
1.000,001 -- 2,00D,000 .............. ......... 10
2,000,001 (and up) - rate 1 point additional for each
(vi) Sand Filters-
200,000 gpd capacity up to a
intermittent biological .....
2
maximum of 30
Design Flow q sn 6
recirculating biological .....
3
(gpd)
(viii) Slabiftalion Lagoons .............
(3)
PRELIMINARY UNITS (see definition no. 32)
(viii)clzrifier ........................ . ....
5
(a) Bar Screens .... ............................ i
(ix) Single stage system for combined
or
carbonaceous removal of BOD and
(b) Mechanical Screens, Static Screens or
nitrogenous removal by nitrification
Comminuting Devices ........... ............. 2
(see def. No. 12) (Points for this item
(c) Grit Removal .... . .......................... 1
have to be in addition to items (5) (a)
or
(d) Mechanical or Aerated Grit Removal ........... 2
(i) through (5) (a) (viii) .................
(x) Nutrient additions to enhance BOD
8
(e) Flaw Measuring Device ....................... 1
removal,... ........... ..............
•Bugs-)
5
or
(xi) Biological Culture (`Super addition
(Q instrumented Flow Measurement .............. 2
to enhance organic compound removal .....
5
(g) Preaeration................................ 2
(b) Nitrogenous Stage
(hj influent Ftow`kqualizaoun . . ................. 2
Aerati,>n - ; " gh Puri!, Oxygen Sy,,l.-o,
Diffused Air System ...........
20
10
(i) Grease or Oil Separators - Gravity .......... 2
Mechanical Air System (fixed,
Mechanical ..... _ ... , 3
floating, or rotor) ...... .....
8
Dissolved Air Flotation. 8
Separate Sludge Reaeration .....
3
()j Prechlorination ............ ........ , . 5
(ii) Trickling Filter -
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 Filter or Aerated
(c) Primary Clarifiers .. ...................... . .. 5
Biological Filler .........................
10
(d) Settling Ponds or Settling Tanks for Inorganic
(iv) Rotating Biological Contactors ............
10
Non -toxic Materials (sludge handling facilities
(v) Sand Filter -
for water purification plants, sand, gravel,
intermittent biological ........
2
stone, and other mining operations except
recirculating biological ........
3
recrealionat activities such as gem or gold
(vi) Clarilier ............................... •
5
mining) ...................................... 2

(6) TERTIARY OR ADVANCED TREATMENT UNIT
(10) -CHEMICAL ADDITION SYSTEM (S) (See definition No. 9)
Via}
Activated Carbons Beds -
(not applicable to chemical additions rated as item
without carbon regeneration ..................
S
(3) {]), (5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) (e),
with carbon regeneration ....................
15
(9) (a), (9) (b), or (9) (c) 5 points each; List:
v
powdered or Granvl r Aclivatc'f Carbon Feed -
5
wilhni carbon rEgeneralio:t ........... , .....
5
-
5
wish carbon. regancra+ion .. , . , ........ .....
15
"— _'
5
(C}
. Air Stripping ..............................
5
S
(d)
Oenildlicalion Process (separate process).....
10
(e)
Electmclialysts ........ » ....................
5
(11) MISCELLANEOUS UNITS
(0
Foam Separation .............................
5
(a) Holding Ponds, Holding Tanks or Settling Ponds
(g)
Ion Exchange ................................
5
for Organic or Toxic Materials including wastes
(h)
Land Application of Treated Effluent
from mining operations containing nitrogen and/or
(see definition no. 22b) (not applicable for
phosphorous compounds in amounts significantly
sand, gravel, stone 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 siles (See del.
No. 4)...................................
basins which are inherent in land application systems). 2
(c) Stage Discharge (not applicable to storage basins
(6) by high rate infiltration an non-agricultural Y
inherent in land application systems.... ............................ 5
managed sites (includes rolary distributors
(d) Pumps._......:.._........................�........._..._»................................�
and similar fixed nozzle systems) ...........
4
(e) Stand -By Power Supply....»_ ..............»...... ._ ........,... 3
(iii) by subsurface disposal (includes low pressure
(f) Thermal Pollution Control Device ................... ........ ......... ... 3
pipe systems and gravity systems except at
plants consisting of septic lank and nilrifica-
tion lines only) .............................
4
TOTAL POINTS
(;}
Microscreens..................................
5
{j}
Phosphorus Aernoral by Biological Processes
CLASSIFICATION
(See dsf. No. 26) ............................
20
(k)
Polishing Ponds - without aeration .......
2
Class 1................... _ _ 5 - 25 Points
with aeration ..........
5
Class II ..... »............ ................. _ 26. 50 Points
(I)
Post Aeration - cascade ..............
0
ClassIII ... ............................... » , _.... 51- 65 Points
diffused or mechanical ...
5
Class IV... ...._........ _ - 66- Up Points
(m) Reverse Osmosis ...............................
5
(n)
Sand or Mixed -Media Fillers - 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
Treatment processes for removal 01 metal or
facilities requires a comparable grade operator in responsible
cyanide ....................................
15
charge.
(p)
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 - Heated ...............
10
Aerobic ...............
5
Unheated .............
3
(b)
Sludge Stabilization (chemical or thermal) .......
5
(c)
Sludge Drying Beds - Gravity... ........
2
Vacuum Assisted .......
5
(d)
Sludge Elutrialion .............................
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 t3) (i) .........
8
(h)
Sludge Gas Ulifizalion (including gas storage) ....
2
(i)
Sludge Holding Tank - Aerated ................
5
Non-aeraled .........
2
(j)
Sludge Incinerator - (not including activated
carbon regeneration) .....
10
(k)
Vacuum Filler, Centrifuge or Filler Press or other
similar dewalering devices ....................
10
►J% SLUDGE DISPOSAL (including incinerated ash)
(a)
Lagoons ......... .............................
2
(b)
Land Application (surface and subsurlace)
(see definition 22a)
-where the facility holds the land app. permit ...
10
-by contracting to a land applicalion 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)
Landfilfed (burial) ............................
5
(9) DISINFECTiON
(a)
Chlorination ........................ .....
5
(b)
Dechlorinalion ........................
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.
ADDITIONAL COMMI=NT5;