WQ0005555_Final Permit_19930429

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27604
James 13. Hunt, Jr., Governor A. Preston Howard, Jr., P.E.
Jonathan B. Howes, Secretary
April 29, 1993
Mr. David L. Craft, General Manager
Weyerhaeuser Company ESP
Post Office Box 590
Elkin, North Carolina 28621-0590
Subject: Permit No. WQ0005555
Weyerhaeuser Company
Elkin Oriented Strand Board Plant
Wastewater Spray Irrigation
Surry County
Dear Mr. Craft:
In accordance with your application received December 28, 1992, we are forwarding herewith
Permit No. WQ0005555 dated April 29, 1993, to Weyerhaeuser Company ESP for the construction and
operation of new and modified facilities and the continued operation of existing facilities for the subject
wastewater treatment and spray irrigation disposal system. It is noted that the permitted flow for this
system will be increased from 14,300 GPD to 28,800 GPD.
This permit shall be effective from the date of issuance until October 31, 1996, 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. Issuance of this permit hereby
voids Permit No. WQ0005555 issued November 14, 1991.
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 forth 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 704/663-1699 919/571-4700 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

One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contact Mr: John Seymour at 919/ 733-5083.
Sincerely, L-0 ((��
A. ZPrest Howard, Jr., P.E.
Director
CC' Surry County Health Department
Winston-Salem Regional Office, Water Quality
Winston-Salem Regional Office, Groundwater
Groundwater Section, Jack Floyd
Training and Certification Unit
SBE Company
Facilities Assessment Unit

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
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
Weyerhaeuser Company ESP
Surry County
FOR THE
construction and operation of new and modified facilities and the continued operation of existing facilities
for a 28,800 GPD industrial wastewater treatment and spray irrigation disposal system for blowdown and
cleanup waters (from the wet ESP scrubbers) consisting of new facilities described as three side hill
screens, a pH control system using Mg (OH2), a defoaming system, a 4,800 gallon surge tank, a cationic
polymer addition system, a anionic polymer addition system, a static mixer, a 35 foot diameter by 13 foot
side wall depth (93,508 gallon) flocculating clarifier, a 1,400 gallon sludge storage tank, a vacuum filter
system; the conversion of the existing lined 420,000 gallon aerated lagoon into a 230,000 anoxic reactor
lagoon with a synthetic tarp cover and a 190,000 gallon aerated pond, a 840,000 gallon storage pond
'(converted from an existing make-up water pond), and eight (8) spray nozzles on 10 additional acres of
spray fields; with existing facilities described as a 420,000 gallon storage pond, an 250 GPM vertical
chopper pump with refitted pump impeller (to supply the new spray field), eight (8) spray nozzles in four
spray fields totaling 10.4 acres, (total of 20.4 acres of spray fields); and all associated new and existing
piping, valves, pumps, controls, flow meters, and appurtenances to serve Weyerhaeuser Company's Elkin
Oriented Strand Board Plant with no discharge of wastes to the surface waters, pursuant to the application
received December 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 October 31, 1996, and shall be subject
to the following specified conditions and limitations:
# �h, 114' 1
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.Q. Box
29535, Raleigh, NC 27626-0535.
2. The Winston-Salem Regional Office, phone no. 919/ 896-7007 shall be notified at least
forty-eight (48) hours in advance of operation of the newly 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 times 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
perform satisfactorily, including the creation of nuisance conditions or failure of the
irrigation area to adequately absorb the wastewater, the Permittee shall take such immediate
corrective action to correct the problem, including actions as may be required 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,
f) 100 feet between wastewater treatment units and wells,
g) 50 feet between wastewater treatment units and property lines.
Some of the buffers specified above may not have been included in previous permits for
this waste treatment and disposal system. These buffers are not intended to prohibit or
prevent modifications, which are required by the Division, to improve performance of the
existing treatment facility. These buffers do, however, apply to modifications of the
treatment and disposal facilities which are for the purpose of increasing the flow that is
tributary to the facility. These buffers do apply to any expansion or modification of the
spray irrigation areas and apply in instances in which the sale of property would cause any
of the buffers now complied with, for the treatment and disposal facilities, to be violated.
The applicant is advised that any modifications to the existing facilities will require a permit
modification.
1. The facilities shall be properly maintained and operated at all times.
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
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. 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.
2

3. A suitable vegetative cover over the spray fields shall be maintained. And, a permanent
ground cover over the new spray fields must be established prior to use.
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 anon -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 1.0 inches at an instantaneous
application rate not to exceed 0.25 inches per hour.
8. No type of wastewater other than that from Weyerhaeuser Company Elkin Oriented Strand
Board Plant 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.
III.MQNITORINQ
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.
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) date of irrigation,
b) volume 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 March, July, and November for the following parameters:
NO3 Ammonia Nitrogen
'IDS TOC
Chloride TKN
pH COD
Formaldehyde TS S
Mercury PAN
Total Phosphorous Chromium
Phenol Sodium
Magnesium Calcium
Sodium Adsorption Ratio by Calculation
3

IV.
4. Three copies of all operation and disposal records (as specified in condition III 2) and all
effluent monitoring data (as specified in condition III 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 Winston-Salem Regional Office, telephone
no. 919/ 896-7007 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.
Prior to beginning waste disposal operations in the new spray irrigation fields, monitoring
wells MW-11 and MW-12 shall be sampled for the parameters listed below. All monitor
wells (MW-4, MW-5, MW-6, MW-7, MW-8, MW-9, MW-10, MW-11, and MW-12)
shall be sampled every March, July, and November for the following parameters:
NO3
TOC
Ammonia Nitrogen
Water Level
Mercury
COD
Volatile Organic Compounds -
'IDS
pH
Chloride
Formaldehyde
Total Suspended Solids
Chromium
In November only
below)
4
by Method 1 or Method 2

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 depth of water in each well shall be measured from the surveyed point on
the top of the casing.
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.
If TOC concentrations greater than 10 mg/1 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 backuound 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, P.O. Box 29535, N.C. 27626-0535 on Form GW-59
(Compliance Monitoring Report Form) every April, August, and December.
2. The (compliance Boundary for the disposal system is specified by regulations in 15A
NCAC 2L, Groundwater Classifications Standards. An exceedance of Groundwater
Quality Standards beyond the Compliance Boundary is subject to penalty provisions
applicable under General Statute 143-215.6A. The sale of property, by the Permittee,
which is within 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 lagoons and spray fields or 50 feet within the
property boundary.
Any sale or transfer of property which affects the location of the compliance boundary shall
be reported immediately to the Director. The permittee shall not transfer land within an
established compliance boundary unless the permittee has satisfied all the requirements of
15A NCAC 2L. 107 (e and f).
The REVIEW BOUNDARY for the disposal system is specified by regulations in 15A
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 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.
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.
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
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.
VI. QENERAL CONDITIQNS
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 2H .0205 (c)(4).
6

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. The subject wastewater treatment and disposal facilities shall be connected to an operational
publicly owned wastewater collection system within 180 days of its availability to the
subject facilities, if the subject wastewater treatment or disposal facilities are in
noncompliance with the terms and conditions of this non -discharge permit or the governing
statutes or regulations.
Prior to the initiation of these connection activities, appropriate approval must be received
from this Division.
10. Issuance of this permit hereby voids Permit No. W(M5555 issued November 14, 1991.
Permit issued this the 29th day of April, 1993
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
C�kA
A. Preston floward, Jr., . . P, Director
Division o nvironmental anagement
By Authority of the Environmental Management Commission
Permit Number WQ0005555
7

Permit No. WQ0005555
April 29, 1993
Engineer's Certification
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: , /t'y�� ��l S�� 1-4�5
Owner or Contact Person:
Mailing Address: X1l'Uya
County: f!! � Telephone:
NPDES Permit No NCOO Nondisc. Per.
€ssueDate: Expiration Date: /� / 2 _.s
Existing Facility '' New Facility
Rated By: .9',?v _ . Y Date: C'
Reviewed (Train. & Cert.) Reg Office , —
Reviewed (Train. & Cert.) Central Office
ORC 1 Grade
Plant Class: (circle one) I II 111 Total Points t
irEM POINTS
(5) SECONDARY TREATMENT UNITS
(a) Carbonaceous Stage
(1)
Industrial Pretreatment Units andlor
(i)Aer2lion - High Purity Oxygen System .. , ..
20
Industrial Pretreatment Program
Diffused Air System ...........
10
(see definition No, 33)
4
Mechanical Air System (fixed,
(2)
c i N FLOW OF PLANT IN GPI}
ifoating or rotor} . . . ...........
8
(not applicable to non -contaminated cooling waters, sludge
Separate Sludge Reaeration
3
handling facilities for water purification plants, totally
.....
(ii) Trickling Filter
closed cycle systems (del. No, 11). and facilities
Nigh Rate ...........
7
consisting only of Item (4) (d) or I;ems (4) (d) and (11)
(d))
. . . . . . . .
Standard Rate . . .............
5
0 -- 20,000 ...............
20,001 - 50,000.............
-
/
Packed Tower ,
5
50,001 -- 1 00,0D0 .............
(iii) Biological Aerated Filler or Aerated
...
100,D01 - 250,0D0 ...................... . . . .
4
Biological filter ......................
(iv) Aerated Lagoons
10
10
250,001 - 500,D00........................ ..
5
.
500,001--1,000,000 ..........................
8
(v) Rotating SVogical Conlaclors ..........
10
1,0D0,OD1 -• 2,000,000 ........................
10
2,000,001 (and up) - rate 1 point additional for each
(vi) Sand F'ilters-
200,000 gpd capacity up to a
inlermitlenl biological , ,
2
max muf
Design Flow (gpd)y�
recirculating biological .....
3
_,Lr
_
(va) StzbAization Lagoons ..........
5
(3)
PRELlNiINARY UNITS (see definition no. 32)
(viii)C?arifier .
5
(a) Bar Screens ................................
1
(ix) Single slag" system for combined
or
carbonaceous removal of 800 and
(b) Mechanical Screens, Slalic Screens or
Comminuting Devices
nitrogenous removal by nitrification
.
(see def. No. 12) (Points for this item
;c) Grit Removal ...............................
or
1
have to be in addition to items (5) (a)
(i) through (5) (a) (viu
(d) Mechanical or Aerated Grit Removal , , , , , , , , , , ,
2
.................
(x) Nulrient additions to enhance BOD
(e) Flow Measuring Device .......................
1
femoval ...............................
5
or
{f] Inslrumenled Flow Measurement
2
(xi) Biological Cukure ('Super Bugs') addition
..............
(9) Preaeration
to enhance organic compound removal , , , , ,
5
.......................... . .....
2
(b) Nlilrocenous Stage
(h) Influent noi-Equatizalfon
2
(i) Aeration - liigh Purity Oxygen System .....
20
...................
0 Grease or Oil Separalors - Gravity..........
2
Diffused Air System ...........
Mechanical Air System (fixed,
10
Mechanical .
3
floating, or color} ...... ......
8
Dissolved Air Flotation.
(fj Prechlorinalion
a
Separate Sludge Reaeration .....
3
..............................
5
(ii) Trickling Filter -
I-ikgh Rafe ..............
7
PRf? , AFAY UNITS
Standard Rate............
5
(a) Sep tic, Tarr (sec definition no. 43) ..............
2
Packed Tower.........
5
(b) Imho" Tank . ......... . .......................
(c) prima C!ari!iers
..
(iii) 0;ologic81 Acra!ed Filter or Aerated
y ..................... . ......
0;olcgicnl Filler ........ , .........
10
(a) Settling Ponds or SuW;ng Tanks for Ir,orydnic
v pola!iny
( t3in,ogical Coniaciors ...... . , ....
)
10
e'er, tczie Mc:;erials (sludge Handling faacilities
(v) Sand Filler -
for vzi!er purification plants, sand, gravel,
inrrriillent biological
2
s!onc, and othr:r fn;:-j(.g cp r ;ll, ;^s e�:cepl
rerrc'u::�l:ng bic!'ryiral _
3
r crcaGonal BCtivities svch as tern or gold
(vi) Ciar4;er, , ....
5
mining) ......................................
2

a�) *EFt.. IARY pR ADVANCED TREATMENT UNIT
(10) -CHEMICAL ADDITION SYSTEM (S) (See definition No. 9)
(a}
Ac+ivaled Carbons Beds -
(not applicable to chemical additions raled as item
without carbon regeneralon .................. 5
(3) (j). (5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) {e},
(b)
with carbon regeneration ........... . ........ is
Powdered or Granular Activated Carbon Feed -
(g) W. (9) (b)or (9} 5 points each: List:
, F - .
without carbon regeneration ... . ........ . .... 5
r,
with carbon regeneration .................... 15
. . . . . 5".
(c}
(d)
Air Stripping .... . . ............ • ... _ _ _ .
penitrif;calion Process (separate process) .....
..... 5
(e)
v
Elecirodialysis ............................. 5
(11) MISCELLANEOUS UNITS
(0
Foam Separation .............................5
(a) Voiding Ponds, }-folding Tanks or Settling Ponds
(g)
ton 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 waslewaler ___„_.._ 4
operations)
(b) Effluent Flow Equaft2lion (not applicable to storage
W on agricrNturally managed sites (See del.
basins which are inherent in land application systems)- 2
No. 4)................................... )0
(c) Stage Discharge (not applicable to storage basins
(I)by high rate infillration on non-agricullura1
inherent in land application systems..._ ................. I., ..... „„--„.. 5
managed sites (includes rotary distributors
(d)
and similar fixed nozzle systems) ........... 4
e Sland-By Power Su
(if) by subsurface disposal (ncludes low pressure
(f) Thermal Pollution Conl:ol Device -... ............................ ._„„ 3
pipe systems and gravity systems except at
plants consisting of septic tank and nilrifica-�
lion tines only) .................. _ ......... 4
TOTAL PAINTS
{iJ
Microsrreens...... ............ ............ 5
(j)
Phosphorus Remo.al by Biological Processes
CLASSIFICATION
(See def. No. 26) ............................ 20
(k)
Polishing Ponds - withoul aeration ....... 2
Glass f..._.. .___.. _ _-._. 5 - 25 Points
lvilh aeration .......... 5
Class 26- 50 Points
(l)
Post Aeration - cascade .............. 0
Class 111._ ... ._---._.,_ 51- 65 Points
diffused or mechanical ... 3
Class 65- Up Points
(m)
Reverse Osmosis ..........•............ .. . . .... 5
(n)
Sand or Mixed -Media Fgiers -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.
(p)
Treatment processes for removal of toxic
materials other than metal or cyanide ......... is
Facilities having an activated sludge process wilt be assigned
a minimum classification of Class fl.
SLUDGE TREATMENT
FaciMies having treatment processes for the removal of metal
{a) Sludge Digestion Tank - Healed............... 10
or cyanide will be assigned a minimum classification of Class 11.
Aerobic .... _......... • 5
Unhealed...... ...._.. 3
Facilities having treatment processes for the biological removal
(b) Sludge Slabiiizalion (chemical or thermal) ....... 5
of phosphorus will be assigned a minimum classiticalion of Class
(c) Sludge Drying Beds - Gravity ...... ........ 2
Ill.
Vacuum Assisled ....... 5
(d) Sludge t"lu:dalion ............................. 5
In -plan[ processes and related conlrol equipment which are an
(e) Sludge Conditioner (chemical or the(mal) ........ 5
integral part of industrial production shall not be considered waste
(1) Sludge Thid;ener (gravity) • ... •.... • • . • . • • • • .... 5
treatment. Likewise, discharges of waslewaler from res}dences
(g) Dissolved Air Flotation Unit
having a design flow of 1.000 gpd or less, shall not be subject to
(not applicable to a unit rates as (3) (1} ......... 8
rating,
(h) Sludge Gas U[iiizalion (including gas storage) . ... 2
(i) Sludge hfol6ng Tank - Aeraled............ . ...
Non-aeraled
�pDl fIONA�,�QMM NTS;
............4�)
r
(jJ Sludge lricineralor - (not including activated
carbon regeneration) - .... 10
(k) Vacuum Filler, Centrifuge or Filler Press or other
similar dewalenng devices ...................
(8) SLUDGC
OISPOSAI. (including incinerated ash)
(a) Lagoons ........................................ 2
(b) Land Application (surface and subsurface)
(see delinilion 22a)
-where the facility holds the land app. permit . . . 10
-by conir2cfing to a land application operator who
holds the land application permit ................ 2
-land zpplicalion of sludge by a contractor who does
not tfo!d t!)e permit for the w2sle,+afcr treatment
faci!i;y v;here the slur4jo is generated ........ .
(c) Lornd!ille)d {buriao ............................ 5
{S) DISIrvI�ECiION
(; J Ghforinalion ... . .................... .... _ S
(t7} DL'/.hlo rill�IiOn ..... . .................. S
(r} Ozone ............................... 5
(d) Rnd7mion .......................... 5