WQ0007026_Final Permit_19930216

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27604
James R. Hunt, Jr., Govemor
February 16, 1993
John F. Gilmore, N.H.A. Administrator
Convalescent Center of Sanford
4000 Farrell Road
Sanford, North Carolina 27330
Jonathan B. Howes, Secretary
Subject: Permit No. WQ0007026
Convalescent Center of Sanford
Wastewater Spray Irrigation System
Lee County
Dear Mr. Gilmore:
In accordance with your application received September 18, 1992, we are forwarding herewith
Permit No. WQ0007026, dated February 16, 1993, to the Convalescent Center of Sanford for the
continued operation of the subject wastewater collection and spray irrigation disposal system.
This permit shall be effective from the date of issuance until January 31, 1998, shall void Permit
No_ 16190 issued May 26, 1989 including all amendments 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 704/663-1699 919/571-4700 9191946-6481 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 Mr. Michael D. Allen at
[phone].
Sincerely,
A. Prest Howard, Jr., P.E.
Acting Mector
cc: Lee County Health Department
Raleigh Regional Office, Water Quality
Raleigh Regional Office, Groundwater
Groundwater Section, Jack Floyd
Training and Certification Unit
Facilities Assessment Unit, Karen Colby

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
Convalescent Center of Sanford
Lee County
FOR THE
continued operation of a 15,720 GPD wastewater treatment and disposal system consisting of a grease
trap, three (3) septic tanks, a 4,560 ft2 sand filter, a thirty (30) day storage pond, a chemical feed
chlorinator, a 2,000 gallon chlorine contact tank, duplex irrigation pumps with automatic irrigation timer
and an eight (8) acre spray irrigation field with five (5) zones to serve the Convalescent Center of Sanford
with no discharge of wastes to the surface waters, pursuant to the application received September 18,
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. 16190 issued May 26, 1988 including all amendments and shall be subject to the following specified
conditions and limitations:
I. PERFORMANCE STANDARDS
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.
2. 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.
3. 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.

4. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
5, 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.
11. QPERATIQN AND MAINTENANCE_RE!UUTREMENTS
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 SA, .0202.
3. A suitable year round vegetative cover 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 0.58 inches at an instantaneous
application rate not to exceed 0.25 inches per hour.
8. No type of wastewater other than that from the Convalescent Center of Sanford shall be
sprayed onto the irrigation area.
2

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► 1Y( :►1 ) IAV 191ts: 1IJ115101175010
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
g) maintenance of cover crops, and
3. Three copies of all operation and disposal records (as specified in condition III 2) 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
4. Noncompliance Notification:
The Permittee shall report by telephone to the Raleigh Regional Office, telephone no. (919)
571-4700 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.
3

IV.
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.
1. Within 90 days of permit issuance, the two (2) existing monitor wells shall be abandoned
pursuant to 15A NCAC 2C .0013.
2. Within 90 days of permit issuance, three (3) monitor wells, one (1) upgradient and two (2)
downgradient, shall be installed to monitor groundwater quality. The wells 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 Raleigh Regional Office, from
which a well construction permit must be obtained, prior to beginning construction. A well
construction record (GW-1 form) is to be submitted to the Raleigh Regional Office within
30 days after well construction.
3. All three (3) new monitor wells shall be sampled initially after construction and thereafter
every March, July and November, for the following parameters:
Nitrate (NO3) IDS
TOC pH
Total Ammonia Chloride
Water Level Fecal Coliforms
Total Suspended Solids
Volatile Organic Compounds - In Novmeber 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. 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/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 background 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.
4

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
April, August and December.
4. The Compliance Boundary for the disposal system is specified by regulations in 15 NCAC
2L, Classifications and Water Quality Standards applicable to the groundwater of North
Carolina. 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 perimeter of the waste disposal areas, 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 REVIEW BOUNDARY 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 tijher (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; Q,
(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. Within 30 days of monitor well construction, submit a modified, scaled map of the facility
site to the Division fo Environmental Management, Groundwater Section, (Permits Group)
- P.O. Box 29535 Raleigh, N.C. 27626-0535. The scale of the map shall be sufficient to
show, and shall include the following:
a) Permit Number
b) Facility Name
c) Facility and Related Structures (including lagoon and spray fields)
d) North Arrow
e) Date of Map Drawing
i) All Property Boundaries
g) Location of all wells (including abandoned wells), within 500 feet of the
facility. Wells should be labeled and numbered as to their primary usage
(drinking water, monitoring, process water, etc.)
h) Perimeter of the waste disposal area
i) Legend
6. Any additional groundwater duality monitoring, as deemed necessary by the Division, shall
be provided,
5

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. GENERAL CONDITIONS
l . 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).
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.
6

Permit issued this the 16th day of February, 1993
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
C ' �� cA,
A. Preston ard, Jr., P.E., Acting Direct
Division of Enivironmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0007026

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` RATING SCALE "FOR CLASSIFICATION OF FACILITIES
Name of Plant: 5>C * F2>CP e_,6 HM C FAJ7 C6IJ71Cr2
Owner or Contact Person: _16; 111U1S7_9A7a,<
Mailing Address: 1/000
County: —L-0 e^ Telephone: 77S -72,07
NPDES Permit No. NC00 Norldisc. Per. No. W Q6,007D2,�
1ssueDate:_ Z6/ 9S _Expiration Date: s 30 93
Existing Facility New Facility
Rated By: —_ �-P_
Date: /c,%,_.._._.
Reviewed (Train. & Cert.) Reg. Office
Reviewed (Train. & Cert.) Central
Office
ORC
Grade
Plant Class: (circle one)
II III !V Total Points
ITEM
POINTS
(5) SECONDARY TREATMENT UNITS
(a) Carbonaceous Stage
(1)
Industrial Pretreatment Units and/or
(i)Aeration - Nigh Purity Oxygen System ....
2G
Industrial Pretreatment Program
Diffused Air Sysie'. .. , - , •
1 0
(see definition No. 33)
4
... , ,
Mechanical Air System (fixed,
(2)
aUl N FLOW OF PLANT IN GPD
floatingor rotor )
8eparate
(not applicable to non -contaminated coaling waters, sludge
Separate - ' " ' ' ' "
Sludge fi=aeratlon
3
handlingfacilities for water purification plants, totally P P Y
(if) Trickling Filler
closed cycle systems (def. No. 11), and facilities
Nigh Rate
7
consisting only of Item (4) (d) or Items (4) (d) and (11)
0 20,000
(d]
Standard Raze ,, , , , , , ,, , ,
..........................
1
Packed Tower......., ...
5
20,001 -- 50,000 ..........................
501001 100,000 ..........................
2
3
(i i i) Biological Aerated Filler or Aerated .....
100,001 •• 250,000 ..........................
4
Biological Filter ....................
(iv) Aerated Lagoons
250,001 •- 500,000 ..........................
5
.....................
10
5001001 •-1,000,000 .... , ..... I .......... I ....
a
(v) Rotating Biological Contactors ..........
1 0
1,000,001 -- 2,000,000 ........................
10
2,000,001 (and up) - rate 1 point additional for each
(v i) Sand Filters-
200,000 gpd capacity up to a
intermittent biological ...
2
maximum of 30
Design Flow (gpd) fi� ~% ��
recirculating biological .. ...
Nil) Stabilization Lagoons
3
5
(3)
PRELIMINARY UNITS (see definition no. 32)
...................
(viii)C!arilier ......... ...................
5
(a) Bar Screens ................................
1
(fx) 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
(1) through (5) (a) (viii) .................
(x) Nutrient additions to enhance BOD
8
(e) Flow Measuring Device .......................
1
removal ......... .
or
(f) Instrumented Flow Measurement
2
(xi) Biological' Culture ("Super Bugs") addition
..............
(g) Preaeralion
2
to enhance organic compound removal , , . , ,
5
........................... .....
(b) Nitrogenous Stage
(h) Influent Flow -Equalization ...................
2
(i) Aeration - High Purity Oxygen System .....
20
(i) Grease or Oil Separators - Gravity ..........
2
Diffused Air System .........
Mechanical Air System (fixed,
10
Mechanical ..........
3
floating, or rotor) ......
B
Dissolved Air Flotation,
B
......
Separate Sludge Reaeration
3
()) Prechlorination ..............................
5
.....
(ii) Trickling Filter -
(4)
PRIMARY TREATMENT UNITS
(a) Septic Tank (see definition no. 43)
2
High Rate ..............
Standard Rate ...... ......
7
5
..............
Packed Tower ............
5
(b) Imhoff Tank ..................................
5
(iii) Biological Aerated Filter or Aerated
(c) Primary Clarifiers .:..... ........... ........ ..
5
Biological Filter ...................
1 0
(d) Settling Ponds or Settling Tanks for Inorganic
(iv) Rotating Biological Contactors
1 0
Non -toxic Materials {sludge handling facilities
....... , ....
(v) Sand Filter -
for water purification plants, sand, gravel,
stone, and other mining operations except
intermittent biological ........
♦ 2
L;
recirculating biological ..... ...
recreational activities such' as gem or gold
(v i) Clarifier................................
mining) .............................. I ...... .
2
5

r5) TERTIARY OR ADVANCED TREATMENT UNIT
(10) CHEMICAL ADDITION SYSTEM (S) {See delinition No. 9)
(a} Activated Carbons Beds -
(not applicable to chemical additions rated as ilem
without carbon regeneration ................. 5
(3) (i). (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:
Powdered or Granular Activated Carbon Feed -
5
.,)
without carbon regeneration.. . . .......... , .. 5
. . . . . . 5
with carbon regeneration ................... 15
5
(c) Air Stripping .............................. 5
-- 5
(d) DenitriFcation Process (separate process) . . . 10
(e) Eieclrodialysis ............... ; ...... I ...... 5
(11) MISCELLANEOUS UNITS
(f) Foam Separation ............................. 5
(a) Holding Ponds, Holding Tanks or Settling Ponds
(g) Ion Exchange ................................ 5
for Organic or Toxic Materials including wastes
(11) 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 waste:ti•aler ......-... 4
operations)
(b) Effluent Flow Equalization (not applicable to storage
W on agriculturally managed sites. (See def.
basins which are inherent in lar.c application systems). 2
No q)................................... 10
(c) Stage Discharge (not applicable to storage basins
(6) by high rate infiitralion on non, agriculturally
inherent in land application systems .....................................
managed sites (includes rolary distributors
and similar fixed nozzle systems) ........... {
(d) Pumps......................................................................................4......... 3
e Stand-8 Power Sup '
(1 Y . p.y................................................................. 3
(iii) by subsurface disposal (includes low pressure
(1) Thermal Pollution Control Device ............................................ 3
pipe systems and gravity systems except at
plants consisting of septic lank and nitrifica-
tion tines only) ............................. Al
TOT = _ POINTS
(i) Microscreens.................................. 5
(j) Phosphorus Rerno-ral by Biological Processes
CLASSIFICATION
(See del. No. 26) ............................ 20
(k) Polishing Ponds - without aeration ....... 2
Class I ........................................................... 5 - 25 Points
with aeration .......... S
Class If ........................................................ 26- 50 Points
(1) Post Aeration - cascade .............. 0
Class ill..--- ................................ -................. 51. 65 Points
diffused or mechanical ... 5
Class N........................................................ 66- Up Points
(m) Reverse Osmosis ............................... 5
(n) Sand or Mixed•Media Filters - 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 .................................... 1 5
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.
i SLUDGE TREATMENT
Facilities having treatment processes for the removal of metal
(a) Sludge Digestion Tank - Heated ............... 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 Slabiiitation (chemical or thermal) ... . . ..
5 of phosphorus will be assigned a minimum classificalion of Class
(c) Sludge Drying Beds - Gravity .................
2 Ill.
Vacuum Assisted .......
5
(d) Sludge Eluirialion .............................
5 In -plant processes and related control equipment which are an
(e) Sludge Conditioner (chemical or thermal) ........
5 integral part of industrial production shall not be considered waste
(f) Sludge Thickener (gravity) ......................
treatment. Likewise, discharges of wastewater from residences
(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) (i) .........
8 rating.
(h) Sludge Gas Utilization (including gas storage) .. ..
2
(i) Sludge Holding Tank - Aerated ................
5 ADDITIONAL OMMtENT5:
Non -aerated ............
2
(j) Sludge Incinerator - (riot including activated
carbon regeneration) .....
10
(k) Vacuum Filter, Centrifuge or Filler Press or other
similar dewatering devices ....................
10
(9) SLUDGE DISPOSAL (including incinerated ash)
(a) Lagoons ........................................
(b) Land Application (surface and subsurface)
2
(see definition 22a)
-where the facility holds the land app. per
t 0
-by contracting to a land application operator who
• .
holds the land application permit ............ t2
-land application of sludge by a contractor who does
not hold the permit for the wastewater treatment
facility where the sludge is generated .........
10
W Landfilled (burial) '.............................
5
(9) DISINFECTION
(a) Chlorination ........................ .....
5
(b) Dechlorinalion ........... ..........
(c) Ozone..... .........................
5
5
(d) Radiation ..........................