WQ0005849_Final Permit_19930105

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
- 512 North Salisbury Street - Raleigh, North Carolina 27611
James G. Martin, Governor A. Preston Howard, Jr., P.E.
William W. Cobey, Jr., Secretary Acting Director
January 5, 1993
Mr. Marlow F. Bostic, President
North Topsail Water and Sewer, Incorporated
223 Coastal Drive
Sneeds Ferry, North Carolina 28460
Subject: North Topsail Water and Sewer, Inc.
Permit No. WQ0005849
(Previously Permit No. 7346R2A2)
Wastewater Spray Irrigation Facility
Onslow County
Dear Mr. Bostic:
In accordance with your permit modification received November 20, 1991, we are forwarding
herewith Permit No. WQ0005849, dated January 5, 1993, to North Topsail Water and Sewer,
Incorporated for the implementation of the submitted "Plan of Action" and the continued operation of an
existing spray irrigation wastewater treatment and disposal system. Issuance of this permit shall hereby
voids Permit Number 7346R2A2 issued July 27, 1988,
This permit shall be effective from the date of issuance until November 30, 1995, 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 919/946-6481 919/395-3900 919/896-7007
Pollution Prevention Pays
P.O. Sox 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Marlow F. Bostic, President
North Topsail Water and Sewer, Incorporated
January 5, 1993
Page Two
If you need additional information concerning this matter, please contact Mr. Dana J. Bolden at
919/ 733-5083.
xq
Onslow County Health Department `-- Wilrington Regional Office, Water Quality
Wilmington Regional Office, Groundwater
Jack Floyd, Groundwater Section, Permits Unit
Training and Certification Unit
Andy Lee, Public Staff, North Carolina Utilities Commission
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
North Topsail Water and Sewer, Incorporated
Onslow County
FOR THE
continued operation of an existing 877,000 GPD (limited to 629,000 GPD until such time as
condition number I, 7 is satisfied and written approval is obtained to increase to influent flow to 877,000
GPD) wastewater treatment system consisting of approximately 3,200 linear feet of 12 inch gravity sewer,
approximately 3,000 linear feet of 6 inch force main, approximately 26,730 linear feet of 10 inch force
main, approximately 19,100 linear feet of 12 inch force main, a 260 GPM duplex pump station with high
water alarms and standby power, two 1,050 GPM duplex pump stations, each with high water alarms and
standby power, a three cell (42.2 acre) stabilization/holding lagoon, a 1,050 GPM irrigation pump station
with duplex pumps and automatic shutoff controls, and approximately 175 acres of wastewater irrigation
area leased from Marlow F. Bostic and the implementation of the "Plan of Action" dated September 24,
1991, as amended October 23, 1991, and November 14, 1991, to serve North Topsail Water and Sewer,
Incorporated with no discharge of wastes to the surface waters, pursuant to the permit modification
application received November 20, 1991, 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 November 30, 1995, shall hereby void
Permit No. 7346R2A2 issued July 27, 1988, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARDS
1. The Wilmington Regional Office, telephone number [phone], shall be notified as
soon as the "Plan of Action" is implemented 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.

2. 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. Failure of the facilities to perform satisfactorily,
including but not limited to, runoff, ponding, failure of the soils to absorb the wastewater,
and/or failure to maintain a suitable year round vegetative cover shall be considered a
violation of this permit condition.
3. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
4. 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.
5. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
6. 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.
7. The influent flow to the treatment facilities must not exceed �29,000 G P D
until after it has been satisfactorily demonstrated that the site is capable of
functioning at a higher loading rate and written approval is obtained from
the Wilmington Regional Office. This written approval must be obtained
prior to an increase in the influent flow above 629,000 GPD to the design
capacity of 877,000 GPD. The maximum permitted flow of 877,000 GPD
shall not be exceeded at any time.
8. The Permittee shall complete the construction of the fourth lagoon, as approved and
required under nondischarge Permit No. 7346R2A2 issued July 27, 1988. Your attention
is directed to the following conditions which were a part of that permit and are being
incorporated into this permit.
9. 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. The liner must be at least one foot thick at
all locations and must have a maximum permeability of 1 x 10-6 cm/sec (unless it can be
demonstrated by predictive calculations or acceptable modeling methods that operation of
the lagoon without a liner will not result in a contravention of groundwater quality
standards).
10. A minimum vertical separation of three feet must be provided between the bottom of the
lagoon and the seasonal high water table.
2

11. Prior to operation of this lagoon, written approval must be received from the Wilmington
Regional Supervisor.
II. OPERATION AND MAINTENANCE REQUIREMENTS
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.
3. A suitable vegetative cover shall be maintained on the spray irrigation areas at all times.
The vegetation management plan which recommends Coastal Bermuda grass and fescue -
rye grass mixture as a cover crop for the irrigation areas shall be followed. Any variation
from the plan shall require recommendations of a soils scientist and the approval of the
Wilmington Regional Office.
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 initial application rates for the irrigation zones shall not exceed the following:
Initial Application Rate
Application
Zone
inches da
Frequency
1
0.51
Every 3rd day
2
0.29
Every 2nd day
3
0.29
Every 2nd day
4
0.51
Every 3rd day
5
0.29
Every 2nd day
6
0.58
Every 3rd day
7
0.57
Every 3rd day
8
0.57
Every 3rd day
9
0.37
Every 2nd day
10
0.37
Every 2nd day
11
0.37
Every 2nd day
12
0.50
Every 3rd day
13
0.58
Every 3rd day
14
0.57
Every 3rd day
15
0.37
Every 2nd day
16
0.37
Every 2nd day
17
0.50
Every 3rd day
18
0.51
Every 3rd day
19
0.50
Every 3rd day
3

The initial loading rates may be increased after a demonstration, to the satisfaction of the
Wilmington Regional Supervisor, that the system is capable of successfully operating at an
increased loading rate. Upon thorough review by the Wilmington Regional Supervisor,
increases may be authorized by the Supervisor not to exceed the maximum hydraulic
loadings:
Maximum Application Rate
Application
-- Zone
inch a
Freqmency
1
0.66
Every 3rd day
2
0.44
Every 2nd day
3
0.44
Every 2nd day
4
0.66
Every 3rd day
5
0.44
Every 2nd day
6
0.69
Every 3rd day
7
0.68
Every 3rd day
g
0.68
Every 3rd day
9
0.46
Every 2nd day
10
0.46
Every 2nd day
11
0.46
Every 2nd day
12
0.66
Every 3rd day
13
0.69
Every 3rd day
14
0.68
Every 3rd day
15
0.49
Every 2nd day
16
0.49
Every 2nd day
17
0.66
Every 3rd day
18
0.66
Every 3rd day
19
0.66
Every 3rd day
Should the system fail to operate at the increased Ioading rates, the Permittee shall
immediately reduce the application rates to the initial loading rates.
8. No type of wastewater other than that collected in the North Topsail Water and Sewer,
Incorporated sewerage collection system 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.
11. The surface of the irrigation areas shall be scarified as necessary to prevent the sealing of
the soil surface which may result in ponding.
12. There shall be no irrigation of the spray fields within 24 hours of a rainfall event greater
than or equal to 025 inch.
13. There shall be no irrigation of the spray fields when the ground is frozen or in a condition
which will likely result in ponding or runoff from the site.
14. The crop management plan developed by Mr. Ed Karnoski shall be followed in the
operation of this facility. The waterways bounding the spray fields shall be reshaped as
recommended by Mr. Karnoski's report using an 8 to 1 side slope at least 3 feet deep. Any
deviation from this plan must be approved by the Wilmington Regional Office.
4

15. A minimum of t»o feet of freeboard shall be maintained in all treatment and/or storage
lagoons.
III.MONITORING—AND RFPQRTING REQUIREMENTS
1. Any additional 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 Pernvttee tracking the amount of wastewater
disposed. The operator shall maintain a daily operations log containing, at a minimum, the
following information:
a) date of irrigation,
b) zones and/or fields irrigated,
c) metered volume of wastewater applied per zone,
d) pump run time per zone,
e) continuous weekly, monthly, and year-to-date hydraulic loadings (metered volume)
for each zone or field,
f) weather conditions,
g) maintenance on irrigation sites and cover crops for each zone (mowing, scarifying,
etc.),
h) any abnormalities noted for each zone (ponding, runoff, etc.),
i) collection of samples (wastewater and/or surface water) for laboratory analysis, and
j) maintenance on wastewater treatment/disposal facilities.
3. Samples shall be collected twice per month from the storage lagoon and analyzed by a
certified laboratory for the following parameters:
BOD5 TOC
Total Coliform pH
NH3 as N TKN
NO3
4. Samples shall be collected monthly from surface waters at the locations marked by "NT-1"
- "NT-5" on the attached figure (Surface Water Monitoring) and analyzed by a certified
laboratory for the following parameters:
TKN TOC
Total Coliform NH3 as N
NO3
5. Three copies of all operation and disposal records (as specified in condition III 2), all
effluent monitoring data (as specified in condition 1113), all surface water monitoring data
(as specified in condition lit 4), and any other data as may be required shall be submitted
on or before the last day of the month following sample collection to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
5

b. An Interim Report, prepared by a soils scientist or agronomist, shall be submitted for field
investigations and/or evaluations of the spray irrigation fields conducted during the months
of April, July, and October. The report shall include, but is not limited to, the following:
a) visual observations including irrigation patterns, land surface conditions (ponding, algae
buildup, etc.), and lagoon levels,
b) crop management recommendations,
c) vegetation (plant tissue) analysis collected during July,
— d) any recommendations for improving conditions at the spray irrigation fields during the
next quarter.
The Interim Report shall be submitted to the Wilmington Regional Office on or before the
last day of the month following the field investigation.
7. An Annual Report, prepared by soils scientist or agronomist, shall be submitted for field
investigations and/or evaluations of the spray irrigation fields, which summarizes the
Interim Reports and provides recommendations for the upcoming year. The report shall
include, but is not limited to, the following:
a) results of the past year's management strategy, including the effectiveness of changes
implemented due to the recommendations in the Interim Reports,
b) irrigation logs for the past twelve months. The logs should highlight the weekly
maximum loading rate for each month,
c) recommendation for the next year, including waterway management, micro -nutrient
additions, irrigation recommendations, and any necessary changes in crop management.
The Annual Report shall be submitted to the Wilmington Regional Office on or before
January 31, 1994, and annually thereafter prior to January 31st of each year.
8. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone
number [phone], as soon as possible, but in no case more than 24 hours or on the
next working day following the 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 renders 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.
0

IV. GRQIINDWATER REQUIREMENTS
1.
2.
3
At least two weeks prior to placing the new lagoons in operation, one downgradient
monitor well, screened in the "GA" zone, 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 Wilmington
Regional Office, from which a well construction permit must be obtained.
The new monitoring well must be sampled initially after construction, and all five monitor
wells (four existing and one new) must be sampled every March, July, and November for
the following parameters:
NO3 TDS
TOC pH
Total Ammonia Chlorides
Water Level Total Colifonm
Orthophosphate Total Suspended Solids
Volatile Organic Compounds - In November 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 backaround 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
April, August, and December.
Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
7

V . INSPECTIONS
i . 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.
V I. GENERAL CONDITIONS
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
or in the event of failure of the soils to adequately absorb the wastewater. Ponding of the
wastewater on the surface of an irrigation zone when the next irrigation cycle commences
shall be considered evidence of failure of the soils to adequately absorb the wastewater.
Additionally, such a failure shall be interpreted as a violation of this permit.
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. 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 15A NCAC 2H .0205 (c)(4).

7. The Permittee shall advise the Wilmington Regional Office in writing of the name of the
designated farm manager and alternate manager. Any change in these assignments shall be
reported within 14 days in writing to the Wilmington Regional Office.
8. The farm manager shall always be provided with a copy of the most current version of this
permit.
9. 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 5th day of January, 1993
TH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston How , J�al­5rnagementCornmission
PEA hector
Division of En vir
By Authority of the E
ermit Number WQ0005849
0

��
A
• R i •tiLi
VI
O I��
n
b
q �
a` 3 R a I 's
172
PPp PP R
pPP \
•♦ • 10
tP �a 5 ©•� � • ♦O•�M 1♦ © ?5✓
0 C II •
s R 25 b
10 ♦bb � t✓
R L dig
ppap P o
x33 b • s•
• _ � _ a N s ''�
C M
/ u I Grant (0) s s" 25 -
3
- R r
_ _ q
Oo _
�O N M1
� cs/s Pa
Z Ppa
♦ R • � P I B �-�• q.w
C b•bb M _
- bbb
2 P
V x33
P :L
6I6 p 3 II 1 $
N bI _ _ h ♦w. �i
p

° r
/ ♦f j � �y � IJJ ,�
72
A"
r�
Ham-- P)"32
N
\ , �.�
• i r�� xr'�O
/ Grant (C)o
p
f 3
It ° +
R t• - _ x���
[\ IF -
d n �.
SI 1t .` t•-.�
ip
43
it
ki
11 R p O
tti riq
Y' •• ,-.
25 � �*-' •- -- � "'� ALLIGATOR BAY
�.•. 2Jo v3, a- a + J �' i i fight
It
Oe baacon p c
1775 , PICER SAY) ''J 277 / u � F�c���7�t"� Oi�r'7vJ � � z79

a .
RATING SCALE FOR CLASSIFICATION OF FACILITIES
-Name of Plant:Z�,p,�j,,
Owner or .Contact Person:
Mailing Address:_ ZZ i C A3m b2(Ue �..�es.�s P l�C
�r7 - __.1_�......
County: V VSZo*—/ Telephone tcj - 328- ad-b
NPDES Permit No. NC00 Issue Date:
Expiration Date: / /
Water Quality Permit No.WQDOo.7g Issue Date:
Expiration Date:
Rated By: Abx,:Js Date: I Z 1JG'CL-� eat 159f
Reviewed By (Regional WWTPC):
Reviewed By (Frain & Cert): t
ORC:+ Grade:
Plant Class (circle one)
ITEM
(1) Industrial Pretreatment Units and/or
Industrial Pretreatment F_ogram
(See Definition No. 33)
(2) DESIGN FLOW OF PLANT IN G?b
(Not applicable to non -contaminated cooling
waters, sludge handling facilities for water
purification plants, totally closed cycle
stems (definition No. 11), and facilities
,listing only of item (,)(d) or
( ams (4)(d) and (11)(d).
POINTS
0 20,000............ ....... I .... ..-----..1
20,001 -- 50,000.................................2
50,001 -- 100,000.................................3
300,003 -- 250,000............ ....I ........ I ... ....4
250,001 -- 500,000 ..............................
500,001 -- 1,000,000................................ B
1,000,001 -- 2,000,000................................10
2,0G0,001 (and up) -- rate 1 point additional for each
20G,000 GPD capacity up to a
maximum of 30
I
QJ
Design Flow (GPD): &0+i 7 M6,0
(3) PRELIMINARY UNITS (See definition No. 32)
(a)
Bar Screens........................................I
or
(b)
Mechanical Screens, Static
Screens or
Comminuting Devices................................2
or
(c)
Grit Removal .............................
or
(d)
Mechanical or Aerated Grit
Remova).................2
(e)
Flow Measuring Device... ...........................
I
or
(f)
Instrumented Flow Measurement .....................�
(g)
Preaeration............. ..........................2
(h)
In€luent Flow Equalization
.........................2
(i)
Oil or Grease Separators --
Gravity................2
Mechanical.............3
DAF....................8
IMARY TREATMENT UNITS
s) Septic Tank (See definition No. 43)................2
(b) Imhoff Tank.......................................5
(c) Primary Clarifiers.................................5
(d) Settling Ponds or Settling Tanks for
Inorganic Nontoxic Materials (Sludge
handling facilities for water purification
plants, sand, gravel, stone, and other such
mining operations except recreational
activities such as gem or gold mining..............2
I (0 III 1-.-
(5) SECONDARY
7'=,_ATKENT U`=S
(a) Carbona__ous Stac_e
(i)
A.a_ation - High Purity Oxygen System, .......
20
Diffused Air System..............IO
Vechanical Air System (fixed,
floating, or rotor)..............8
Separate Sludge Reaeration........
3
(ii)
Trickling Filter - High Rate...........
Standard Rate.............5
Packed Tower..............5
(iif)
E'.logical=.erated Filter or Aerated
Siologlcal Filter.........
(iv)
A.:ated Lagoons........ ..........
10
(v)
R._ating Biological Contactors..............10
(vi)
SAnd Filter--- - Intermittent Biological .......
2
Recirculating Biological .....
.3
(vii)
Si=_bilizatio; Lagoons. .......................
5
(viii)
C:A-rifier....I... I .................
5
(ix)
5'7.21e stage system for combined
Cc_bonaceOu-s removal of HOD and
n'.rogenous removal by nitrification
(See definition No. 12) (Points for
tt's system are in addition to items
(= (a)(i) tcrough (5)(a)(viii)...............8
(x# ::_tr'_ent Additions To Enhance BOD Removal ....
5
(xi) _ic:.gical.Culture ("Super Hugs") addition
=4 enhance orc_anic compound removal.. .......
5
(b)
Nitrocelo_z Stage
{i) :.erccicn - High Purity Oxygen System.. ......
20
Diffused Aeration................10
Nechanical Air System (fixed,
floating, or rotor)..............8
Separate Sludge Reaeration........
3
(ii) .c..ling -filter - High Rate—, ......
Standard Rate.............5
Packed Tower..............5
(iii) _io__gical Aerated Filter or Aerated
Bit_ogical Filter.— .....................10
{iv) R:)ta_ing Biological Contactors..............10
(v) Sand Filter - Intermittent Biological ........
2
Recirculating Biological .......
3
(vi) Cla-ifter. ....................................5
(6) TERTIARY Or, A---;ANCE TREATMENT UNITS
(a)
Activated Zarbon Beds -
Without Carbon Regeneration..............5
With Carbon Regeneration................15
(b)
Powdered cr Granulated Activated Carbon Feed -
',�ithout Carbon Regeneration, , . . . . ........
5
With Carbon Regeneration., ........... ..15
(c)
Air Strip_ing...... ..............................5
(d)
Denitrification Process (Separate Process) ........
10
(e)
Electrcdia ysis................ ...........5
(f)
Foam Sewaracion............:.......................5
(g)
Ion Exchange.......................................5

;and Application of Treated Effluent
(111 MISCELLANEOUS UNITS
See Defir.'rion No. 22b) (Not Applicable For
(a) Holding Ponds, Holding Tanks, or Settling
sand, gra-:,1, stone, and other similar min'.n,
Ponds For Organic or Toxic Materials
operations.
Including Wastes From Mining Operations
(1) On h;riculturally Managed Sites (Ser.
Def'-.ition No. 4)..........................
10
Containing Nitrogen and/or Phosphorus
Compounds in Amounts Significantly Greater
(ii) By Y.'gh Rate Infiltration On Non-
Than Is Common for Domestic Wastewater).. ..........4
Agrirulturaliy Managed Sites (Include_
(b) Effluent Flow Equalization (Not Applicable
Rotary Distributors and Similar Purpcle
To Storage Basins Inherent To Land
Fixe-- Nozzle Systems). ..... ..............4
Application Systems)... .....•............._.....2
(iii) By 5�bsurface Disposal (Includes L.-a
(c) Stage Discharge (Not Applicable To storages
Pressure Pipe Systems and Gravity
Systems Except Plants Consisting Of
Basins Inherent To Land Application Syster..; .....;
(d) Pumps ............................................
Sep::c Tank and Nitrification Lines Only)
.... 4
(e) Standby Power Supply...............................3
(i) Microscreers.......................................5
(f) Thermal Pollution Control Device ................... 3
(j) Phosphorus Removal By Biological Process
(See DefSaition No. 26)..........................20
(k) Polishing -onds - Without Aeration.................2
TOTAL POINTS z9
With Aeration....................5
(1) Post Aera:'on - Cascade ............. ............0
Diffused or Mechanical.............5
(m) Reverse os-.psis.............................. __5
CLASSIFICATION
(n) Sand or N.'xed Media Filters - Low Rate.............2
High Rate ............
5
Class I ........................ 5 - 25 -tints
Class II ..................... �� ?pints
Class III ......................-SI = 65 -aints
(o) Treatment process For Removal of Metal
Class IV........................66 - up :Dints
or Cyanide .....................................
(p) Treatment Process For Removal Of Toxic
„15
Facilities- having a rating of one through :our points,
inclusive do not reOperator,
certified
ulre
Materials other Than Metal Or Cyanide.........•••15
all other facilities uirest a comparable grade operator in
q P g
responsible charge.
(7) SLUDGE TREATMENT
(a) Sludge Digestion Tank - Heated....................10
­5
Facilities ha•,'.ng an activated sludge process will be
Aerobic- ................
unheated...................3
assigned a minimum classification of Class II.
(b) Sludge Stabilization (Chemical or Thermal) ......
.•102
Facilities having treatment processes for the removal of
(c) Sludge Drying Beds - Gravity .............•••-•••
Vacuum Assisted ............
.•.5
metal or cyanide will be assigned a minimum class-fication of
Class II.
iri} Sludge Elutriation................I........1.......5
Sludge Conditioner (Chemical or Thermal) ...........
5
Facilities having treatment processes for ti._ biological
Sludge Thickener (Gravity)...,...I-. ...........••5
Dissolved Air Flotation Unit (Not Applicable
removal of phosphc.-us will he assigned a minimum c-assification
1
To A Unit Rated As (3)(1))....................
...8
of Class III -
(h) Sludge Gas Utilization (Including Gas Storag4
...... 2
(i) Sludge Holding Tank - Aerated ...................
2
Non -aerated ...... ............
- (j) Sludge Incinerator (Not Including Activated
10
Carbon Regeneration) ...........................
„
(k) vacuum Filter, Centrifuge, Filter Press or
l0
other similar dewatering devices...........
(9) SLUDGE DISPOSAL (Including Incinerated Ash) 2
(a) Lagoons ........................
(b) Land Application (Surface and Subsurface) (See
Definition No. 22a) licat
Where the facility holds the land app on„ 10
permit......................................
By contracting to a land application
operator who holds the land application 2
permit ..........................
Land application of sluoge by a contractor
who does not hold the permit for the
wastewater treatment facility where the sludge 10
is generated ........................... I..... 5
(c) Landfill (Burial) ..................................
(9) DISINFECTION
(a) Chlorination ......................... 5
(b) Dechlorination.................. .....................
5
(c) ozone .................................... .........5
(d) Radiation_ ..............................
(10) CHEMICAL ADDITION SYSTEM(S) (See Definition No. 9)
(Not Applicable to Chemical Additions Rated As Item
(5)(bor(9)(c)5 poin
)(x�)ts each. LIST')(e),
5
...................5