WQ0004972_Final Permit_19960206

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
February 6, 1996
Mr. Thomas Johnson, Project Engineer
Thousand Trails Inc.
192 Thousand Trails Drive
Advance, NC 27006
A4
CDEHNF=1
Subject: Permit No. WQ0004972
Thousand Trails Inc.
Forest Lake
Wastewater Spray Irrigation
Davie County
Dear Mr. Johnson:
In accordance with your application received November 2, 1995, we are forwarding herewith
Permit No. WQ0004972, dated February 6,1996, to Thousand Trails Inc. for the continued operation of
the subject wastewater treaunent and spray irrigation facilities.
This permit shall be effective from the date of issuance until December 31, 2000, shall void Permit
No. WQ0004972 issued June 27, 1991, 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, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the
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.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contact Mr. Randy Kepler at [phone] extension 544.
Sincerely, n
A. Press- Howard, Jr., P.E. `
cc; Davie County Health Department
Winston-Salem Regional Office, Water Quality Section
Winston-Salem Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Training and Certification Unit, No Change in Rating
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 501% recycled/ 10% post -consumer paper

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
Thousand Trails, Inc.
Davie County
FOR THE
continued operation of a collection system serving 283 camp sites and 18 cabins consisting of nine grinder
pump stations with associated collection piping, 430 linear feet of three inch force main, 455 linear feet of
four inch force main, and 935 linear feet of six inch force main; and
the continued operation of a 45,000 GPD extended aeration wastewater treatment facility with effluent
storage lagoon and spray irrigation disposal facility consisting of a 14,800 gallon capacity aerated surge
tank with influent bar screen, dual 74 GPM submersible pumps, and high water alarms, a 45,000 gallon
capacity aeration tank, dual 285 CFM blowers, a 4,500 gallon sludge holding tank, a 7,500 gallon
clarifier, a 940 gallon baffled chlorine contact tank with hypochlorinator, a 0.408 MG capacity lagoon with
PVC liner for storage of treated effluent, and dual 142 GPM effluent dosing pumps discharging to a 9 acre
spray irrigation field with thirty sprinkler heads to serve Thousand Trails, Inc., with no discharge of
wastes to the surface waters, pursuant to the application received November 2, 1995, 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 December 31, 2000, shall void Permit
No. WQ0004972 issued June 27, 1991, and shall be subject to the following specified conditions and
limitations:
1. 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 assimilate the wastewater, the Permittee shall take immediate
corrective actions including those actions that may be required by the Division of
Environmental Management, such as the construction of additional or replacement
wastewater treatment and disposal facilities.
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 residuals generated from these treatment facilities must be disposed 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, and
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.
I . The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Certification Commission, the Perrnittee 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 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 application rate shall not exceed a cumulative loading of 46.8 inches over any twelve
(12) month period at an instantaneous application rate not to exceed 0.11 inches per hour.
2

8. No type of wastewater other than that from Thousand Trails, Inc. 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. Freeboard in the treated wastewater storage lagoon shall not be less than one foot at any
time.
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:
BOD5 TS S
Fecal Coliform pH
NH3 as N
4. Three (3) copies of all operation and disposal records (as specified in condition III 2) on
Form NDAR-1 shall be submitted on or before the last day of the following month. Three
(3) copies of all effluent monitoring data (as specified in condition 1113) on Fozm NDMR-1
shall be submitted on or before the last day of April, August, and December. All
information shall be submitted 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
number 910-771-4600, 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; or
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.
I f ►1 �: I, 'I III
1 :.0 .►
In all future correspondence, and on all future GW-59 monitoring forms, the monitor wells
previous referred to as MW-5, MW-6, and MW-7 will be referred to as MW-1, MW-2, and
MW-4 (see below):
For neName
New Name
MW-5
MW-1
MW-6
MW-2
MW-7
MW-4
2. Monitor wells MW-1 (formerly known as MW 5), MW-2 (formerly known at MW-6),
MW-3 and MW-4 (formerly known as MW-7) shall be sampled every March, July, and
November for the following parameters:
Chloride pH
Fecal Coliform TOC
NO3 Water Levels
Volatile Organic Compounds - In November only (by Method 1 below)
Method 1: Method 6230D (Capillary - Column), "Standard Methods For The
Examination of Water and Wastewater", 17th ed., 1989
The measurement of water levels must be made prior to sampling for the remaining
parameters. The depth to 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 the relative elevation of the measuring point for each monitoring well.
If TOC concentrations greater than 10 mg/l are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TOC concentration. If the TOC concentration as measured in
the background monitor well exceeds 10 mo, 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 the Winston-Salem Regional Office Groundwater Supervisor, telephone
number 910-771-4600, must be contacted immediately for further instructions regarding
any additional follow-up analyses required. The results of all initial and follow-up analyses
must be submitted simultaneously.
The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on Form. GW-59
[Compliance Monitoring Report Form] every April, August, and December.
3. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided. '
4. The COMPLIANCE_ BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is
for the disposal system constructed after December 31, 1983 is established at either (1) 250
feet from the waste disposal area, or (2) 50 feet within the property boundary, whichever is
closest to the waste disposal area. An exceedance of Groundwater Quality Standards at or
beyond the Compliance Boundary is subject to immediate remediation action in addition to
the penalty provisions applicable under General Statute 143-215.6A(a)(1).
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the
disposal systems midway between the Compliance Boundary and the perimeter of the
waste disposal area. Any exceedance of standards at the Review Boundary shall require
remediation action on the part of the permittee.
5. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled topographic map (scale no greater than 1":100') signed and
sealed by a state licensed land surveyor that indicates all of the following information:
a. the location and identity of each monitoring well (with new designations),
b. the location of the waste disposal system,
c . the location of all property boundaries,
d. the latitude and longitude of the established horizontal control monument,
e. the relative elevation of the top of the well casing (which shall be known as the
"measuring point"), and
f. the depth of water below the measuring point at the time the measuring point is
established.
The survey shall be conducted using approved practices outlined in North Carolina General
Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56.
The surveyor shall establish a horizontal control monument on the property of the waste
disposal system and determine the latitude and longitude of this horizontal control
monument to a horizontal positional accuracy of +/- 10 feet. All other features listed in a.
through e. above shall be surveyed relative to this horizontal control monument. The
positional accuracy of features listed in a, through e. above shall have a ratio of precision
not to exceed an error of closure of 1 foot per 10,000 feet of perimeter of the survey. Any
features located by the radial method will be located from a minimum of two points.
Horizontal control monument shall be installed in such a manner and made of such
materials that the monument will not be destroyed due to activities that may take place on
the property. The map shall also be surveyed using the North American Datum of 1983
coordinate system and shall indicate the datum on the map. All bearings or azimuths shall
be based on either the true or NAD 83 grid meridian. If a Global Positioning System
(GPS) is used to determine the latitude and longitude of the horizontal control monument, a
GPS receiver that has the capability to perform differential GPS shall be used and all data
collected by the GPS receiver will be differentially corrected.

The maps and any supporting documentation shall be sent to the Groundwater Section,
N.C. Division of Environmental Management P.O. Box 29578 Raleigh, N.C. 27626-
0578.
Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure properoperation of the subject facilities.
2. The Permitteeor 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 or facility at any reasonable time for the
purpose of determining compliance with this permit, may inspect or copy any records that
must be maintained under the terms and conditions of this permit, and may obtain samples
of groundwater, surface water, or leachate.
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and 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 143-215.6(a) to 143-215.6(c).
5. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, roles, 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 forthe life of the project.
7. The annual administering and compliance fee must be paid by the Permitwe, within thirty
(30) days after being billed by the Division. Failure to pay the fee accordingly may cause
the Division to initiate action to revoke this permit as specified by 15A 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.
Permit issued this the Sixth day of February, 1996
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston rird, Jr., P. ., Director
Division ofnmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0004972

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' NORTH CAROLINA
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r�R SCALE FOR CLASSIFICATION OF WATER POLLUTION! CONTROL SYSTEMS
Name of Facility:
Owner or Contact Person:
Mailing Address:
County: Telephone:-.1I 6
Present Classlflcaticn: C` ass New Faclllty Exlsting FaclHty K
NPDES Per, No. NC00 Nondisc. Per. No.WQ 000 4q-7-Z Health Dept.Per No.
Hated by: _ �. 1t", F--V .�/b�c.1 /1 Telephone: `k-771 Epp Date; /� // �—
Reviewed by; Health Dept. Telephone:
Regional Office
Central Office
O R C: (-Ru-fir•-- CILZ14 LLU G r d e:
Telephone: ?,o/ -- �16 o U
Telephone:
Telephone: 7�31-36-2- t; 8'
Check Class if]cation(s): F Subsurface Spray Irrigation Land Application
Wastewater Classification: (Circle One) I II III IVTotal Points:
i :\II ���� :►: i : I ! �LElhfa �a ru7►1 �l�l�:i :► ►11� i� � ►Ei A Iw: iAi�� 1�\ �4: ►f
�!w i i � \ :. EtR i Efu �\ w� s le � i ;�� �i � a..w 1 �\ l � � 1. : \:! N +111 ��.► i \. fa \', � J4 Gl'►
,119 1 11MMANTAIEl 1111: ♦.: K9. age ILI:i uJ aaLEu a.:I I o!
SUBSURFACE CIASSIF]CATtON
(check all
units that apply)
1,
septic lanks
2.
pump tanks
3,
siphon of pump -dosing systems
4.
sand filters
5,
;'Hasa Irap/interceptor
6. oil/water- separators
7. gravily subsurface Ireatment and disposal:
8. pressure subsurface Iroatmeni and disposal:
SPRAY Il R)SAT)CN CLASSIFICATION
(check all units that apply)
1, preliminary treatment (definition no. 32 )
2.__X_lagoons
3. septic tanks
4. pump tanks
5._Xpumps
6. sand filters
7- grease 1W/miercepior
8, oillwater separators
9. � 4 disinfection
10. chemical addition for nutrient/algae control
11.- >��spray irrigation of wastewater
Ina.. edditlon to the above classifications, pretreatment of wastewater In excess of these components shall
be rated using the point rating system and will require an operator with an appropriate dual certification.
LAND APPLICATION/RESIDUALS CLASS9FICATION (Applies only to permil holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATM ENT FACILITY CLASSiF)CATiON
The following systems shall be assigned a Class I cassilication, unless the flow is of a significant quantify or the technology is unusually
complex, to require consideration by the Commission on a case -by case basis: (Check H Appropriate)
1. Oil/waler Separator Systems crnsisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Fiher Systems consisting only of septic tanks, dosing apparatus, pumps,sand fihers, disinfection
and direct discharge;
3. Lagoon Systems consisting orgy of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and drect discharge;
4. Closed -loop Recycle Systems;
5. Groundwaler Remediation Systems consisting only of oii/waler separators, pumps, air -stripping, carbon adsorption, disinfection
and dispoF,'J;
&. Aquacullure operalicris wish dischargeto surface wafers;
7. Water Plant sludge handling and back -wash water treatment;
8. Seafood processing consisting of screening and disposal.
9. Single-family discharging systems, with the except -son of Aerobic Treatment units, will be classified if permitted after July 1,
1993 or if upon inspedion by 2e Division, it is found [hat the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, in writing.

scale is used for rating waslawaler treatment faci.iiiies, (circle appropriate poin,$)
GEM POINTS
(1 } Industrial Prelrsaimerx Unffs or Industrial Prelrealmenl Program (ses dMinhlon No,33)...................................................4
(2) DESIGN FLOW DF PLANT IN gpd (not applicabia to non cmntanrnaradcnaGng vrtlars, sludge handling lacil€tias for
water purification plants, totally closed cycle syslems(saa definition Na_ Ti3, anJ facilities mnsisling only of hem
(4)(d) or Items (4)(41) and (I1)(d)i
0 _ 20,000....... -...... ................ ............................. .... ».......................................... ........
.......................
.
20,001 - 50,000........................................... ........... _........... ............................... --....................
50.001 100,000......... --........................................ _.__............................................ .........................
100,001 250,000.......... ....... ......... ......................... ...... ......._........... ............................ ........................ 4
250.001 500,000 .................... ................................ --_...................... -..........................., , ............. ,... S
500,001 1,000.000 ......................... ........................ .............................. .................... I ......... ,.,,,..........
.8
1,000,001 2,000,000 ............... ...... ....... ................ __-................................... .,.,........ I ...............
......1 0
2,000,001 (and Up) MIN 1Ir4 a dlftnAl tar each 7150.00p gpd O acky up 10 a maximum of ,,,,,,,,,,,,,,,,,30
Dastgn Flow (gpd) IQ (3) PRELIMINARY UNn'SrPROCESSES (see definition No.32)
(a) Bar Screens ............................................
....................___..............._........ �...t J ..................
Or r
(b) Machanicaf Screens, Static Screens or Comminuting Dsvices..........................................................................2
(c) Go Removal .......................... ..................... ................--.-.........__......-................................................1
or
(d) W,echanlcal or Aerated Grit Removal ........................... -_--•-•_._......................................................... 2
eRowMeasurnppevice...................................................—......_.......................................-_....,......_...............1
or
(I} Instrumented Flow Measurement ................................. -......... ......... ......... --.......................... - ........ ., ._.2
(g} Preaaratlan................................................................. —._.................... ........... ................................
....
(h) 1nfluenl Flow Equailzatlon.... ............................ .............. _.......... ............................................................. 2
0) Grease or Oil Separators - Grav4y .......................:....._..................... ................. ....... ............................. 2
Mechanical-- ........ ................................................... -........... --- ............................ .............................
. a
Dl=s ved Air Fkmallon........................................ ......... ....__................................................................... --s
()} Prachforinatlon........................................................... T......................................................................
5
(4) PR]MARY TREATME? r LNfTSrPFK:)CESSES
(a) Septic Tank (see daffnition No. 43)-.............._....._..-.._.._.._......._............................................._...........2
(b) Imhoff Tank ............................................ ............. --- ..._........... :.._...................................................._...5
(c) Primary Clarillers..........................•...............---._........-__.....................__...-..._.........._....,.........I...........,...........5
(0) Settling Ponds or SeRIIng Tanks for Inorganic Non•toxlc Matsstafs (sfudge handling facitlties tar water
purification plants, sand, gravel, stone, and other miring apwationc except rocraalional aclivhias such as gem
orgold mining) ............................................... ........... -- • ..__.. .............2
(5) SECONDARY TREATTv1E3Yr LINn S/PROCESSES
(a) Carbonaceous Stage
(I) Aeratlon-High Puriry Oxygen Sysimm........... ................................................ *........... :......
DiffusedAir System........................_.................................................... 1:............ ..
Mechanical Air System (fixed. lloa. •n or rofor)....................-..................................I......5
SeparateSludge Reaarailon............. ..—_.............................................._...................
(Ir) TeUding Filter
HighRate ................................... ._ ____ ....................... .............................. ...7
StandardRate ............................... --- ... _............................................ ............ 5
PackedTower.................................................................................................... 5
(ill) Blologtcal Aerated Rhar or Aerated BSdogkal Fiter:...........................................................1 0
{Iv) Aerated Lagoons ............................ _.._._.......... ............................. ................................ 10
(v) Rolating Biological Confactors.............._-.-......___..__._......_............................................10
(vf) Sand Filters -intermittent biological ........... ............. ........... ...............................................
Recirculatingbiotaglcai........... ........ ..................... ........................ .......................................
{vll) Stabilization Lagoons .................. ._..._......._......... ._......................................................
(vili) Da%r........................................... .^-------------- .................. ............
......-.,.............t�
(Ix.) Singlo mngo symom for combined cartxtnncaous rornova€ of DOD and nilrogonous romaval by
nitrification (see deflnMon No. 12)(Poirastar this hem have to be In addition to hems
(5)(a)(1) through (5)(a)(viii), c..
utilizing the extended aeration process (sea definhloa No.32)..........................................2
ulIIIzing ocher than the extended aaragan process_...........................................................a
(x) Nutrient addrtions to enhance BODreaeovaF_..-----.................................... ........................5
(xl) Biological Culture ('Super Bugs')adition........................................... ..........................5
(b) Nitrogenous Stage
(1) Aeration - High Purhy Oxygen SystBw_.-...,._•..................................................................20
.
DiffusedAir System ........................... __...__.................................................................... 1 0
Mechanical Air System (fixed, f€oalin or rotor)..................................................................8
Separate Sludge Rsaeration....... .... ....__--........ .............................................................
(il) Trickling Flitar-High Rate ................. _..--------- ........ .......................... : .............................. 7
StandardRala................... ............. ----...... ...... ....................................................... 5
PackedTower ................................ _.-.......................................................................
(III) Blological Aerated Filter or Aerated Biefogical Ffter._.--.....................................................1 0
(Iv) Rotating Slologlca! Gonlaciors.........._.............. ................... - .............. ----.10
{v} Sand Filter _ Intermittent bfpbglcal._.._—...................................... ...._.............._.............2
Reclrculaling biological .................... _............................... ........................................... n
{vl} CEarifier......................................_.._._.._.......-._............................................................5
(6) TERTIARY OR ADVANCED TREATMENT LNI TSIPRCCESSES
{ a) Activated Carbon Beds -
whhout carbon regeneratlon................. ..__._._..__....... ..... ....... ............ .................. .............
withcarbon regeneration ...................... ... --.................................... ........................ ..._..1 5
(b) Powde red or Granular Act�ralad Carbon Food.
without carbon regeneration .................. .-...... ....... ........................................................
-wth carbon regeneration ...................... -•--- ............................................. ......................1 5
(c) Alr alripp€ng............................................................... .----
.--•..................
...................... .........
-,5
(d) Denhriflcation Pracass....................................................._..............._....................._................1 0
(0) Elocirodlalysls...................................................-..._.._....-..........._.._.....................................................5
(1) Foam Sep2ra0on....................................................... ............... --......... .........................................
(g) ]on Exchange ............ ............................. .......... ......... .._.,.._..... ....................................... ...................... .... 5
(h) Land Appticallon of Treated Effluert (sea detln€ilon No, 22b) (not applkable for sand, gravel, stniw
and other similar mining oparuions) by high rate Innarm[an---.__................. ..... -....... ....... .................. (2-
(1) Mieroscroens....................................._..........-r—..._..._.......-......._....................._......_...............5
(() Phosphorous Removal by 6€ologlral Processes {Sae datlniton No. 26)........................................................20
(k) Polishing Ponds - without Aeration ................ ........ ......__._r............................ __.................................. 2
withaeration ............................. —_._...__.._-...._.._........................_...........................

PostAeration - cascade .............................. ................................................... .......... ..... ................... :....,...0
diffused or machanlca€....... .
(m) Reverse Osmosis ....................................................
(n) Sand or Mixed-tv{edia Fihorsiowrain .........................rate.................................................'.,..............2
high rate.....-•-•----••-- • 5
(a)
.................
Trearmerrl processes for removaf of rneial or cyarade..-r...........................................................................15
'
(p)
treavrienl processes Tor removal of toxic material$ Other than metal or cyanide .......................................
......i 5
(7)
SLUCGETREATMENT
(a)
Sludge Digecllon Tank - Healed (anaerobic) ..... ...............................................................................
.......... $0
Aerobic ... ......... I .....................
Unhealed(anaaroblc).................. .............................................. ........ ........................ ___ .........................
3
(b)
Sludge StWIlzation (chemical or thermal) ...... ........................... .................. ...................... ................
,....... .
(o)
Sludge Drying Bede-arsvhy.......................................................................................................................2
VacuumAsslsted......................................................................................._....,................,.,,...,.................5
{d)
Sludge Eluldation.....................................................................»........__..................:.................................5
{e)
Sludge Conditioner (chemical or thermal)......................................................................................................5
( f )
Sludge Thickener (gravity)..........................................................................................................................5
(g)
Dissolved Air Flotation Unit (not applicable to a unh rated as(3}(i}]................................................ .............
a
(h)
(1)
Sludge Gu Utllizallon (Including gas slorags)................... .................... ...- ............... ..
Sludge Holding Tank - Aerated .............. ................. ........................ ........... ............................. ...................5
Non -aerated .................................................
(j}
Sludge Incinerator (not Including activated carbon regeneration)...............................................................to
(k)
Vacuum Filter, Cen€rfiuge, or Filter Press or other similar dawaiering devices...................................................10
(8)
RESIDUALS UTILITATiOWDISPOSAL (inducting incinerated ash)
(a)
Lagoons-- ................................................ ..................................... .....................................................
2
(b)
Land Application (surface and subsurface) (see delinition 22a)
by contracting Ic a land application operator or landfill operator who holds the land application permit
orlandfill permit ......... ................................... .................... ................. ................................. .......................
2
(c)
Dedicated Landfill(burial) by the permittee of the wastewater treatment facility.._...........................................5
(9)
DSSt4=ECTCN
(a)
Chlorination..........................................................................................................................................
(b)
Dechlorinalson............................................. _.._..__....._.............,........,......,........_.........,.......
.5
(c)
Ozone........................................................................-...........
5
(d)
Radiation ........ ..................... ....................... ............................ ......... ........................_......... _...................5
(1 0)
CHEMICAL ADDITION SYSTEM(S) ( see delinhlon No. 9) (rot applicable to chemical additions rated as tram (3)0),
(6)(b), (7)(b), (7)(9). (9a), (9)(b) or (9)(c) 5 paints each:
List
-
5
................... ......................... :......... ............---...__...............................................
.........................................................................................................................
5
(t 1)
................. ............ I ................... _.............••...._...................................., ...,
MISCB-L-AN E UNrTSrPR0CESSES
........, 5
(aJ
Hoidng Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Majeriais including wastes from mining
operations containing nitrogen or phosphorus compounds In amounts significantly greater than Is common
fordomestic wastewater .........................................................................................................................4
(b)
Effluent Flow Equalization (rat applicabta to storage basins which are inherent In land app"-allon systems)
...... 2
(C)
(d)
Stage Discharge (not applicable to storage basins inhorara In land application systems) .... ...........................
Pumps..........................................................................
3
(e)
Sland-By Power Supply............................................................................................................................
(I }
Thermal Pollution Control Device ....... ...................................... ---.................._...._.....................................3
TOTAL POINTS ...................... ...... ............ ........................ ...............
C(,ASSiFICA-DCN
Crass1...........................................................................................................5.25 Points
ClassIf ......................................... :........................................... - .................. 26.50 Points
ClassIll........................................................................................................ 51-65 Points
-------------------------------------------------------------
ClassN............................................................. ..... _................................... 66-Up Points
Facilities having a rating of one through four p3€rds, Inclusive, do not raqulre a cenified operator,
Facilities having an activated sludge process will be assigned a minimum classlficatlon of Crass If.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classlilrafion of Crass II.
FaCWICe6 having treatment procasse�-ror the biological removal of pho6phorus will be assigned a n:nimum cumsiriicatiufr of Class I!;.
.0004 DEFtNfTIONS
The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physical/chemical method for reducing soluble organic material from wastewater efiluerx; The column -type beds used In this
method will have a flow rat" varying (rum two to eight gallons per minute per square loot and may be eRher upfiow or downflow carbon beds. Carbon may or
may not be regenoraled on Iha wastewaiar irestmanl plant she;
(2) Aerated Lagoons. A basin in which all solids are rrWntalnod In suspension and by which biotaglcal oxidation or organic maner fs reduced through arlificially
accelerated transfer of oxygen on a flow -Through basis;
(3) Aeration. A process of bringing about Intimate comact between air or high purity oxygen In a liquid by spraying, aghatlon or ditfuslon;(3a) Extended
Aeration, An activated sludge process utilizing a minimum hydraulic detention tlms of IS hours.
(4) Agriculturally managed site. Any ehe on which a crop Is produced, managed, and harvested (Crop Includes grasses, grstm, trees, ale.);
(5) Air Stripping, A process by which the ammonium ;on is first converted to disco ved ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; or other slmllar processes which remove petroleum products such as benzene, toluene, and xyier*;
(6) Carbon Reganerallon. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize the
absorbed Impurrllee;
(7) Carbonaceous Stage. A swga of wastewater Irealmenl designed to achieve 'secondary' effluent limits;
(8) Centrifuge, A mechanleal device In which centrifugal force is used to separate solids from Ilqulds or to separate I(qulds of dfferenf densi;,,as;
(9) Chemical Addition Systems- The addition of chemlcal(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment,
alkallnhy control, etc.; the capability to experiment with dtjferam chemicals and different application points to achieve a specific resuft will be considered one
system; the capability to add chemical(s) to dual units will be rated as one system; capabiifty to add a chemk;O at a different zppiication poin% for different
purposac will resuh In the systems being rated as ceparaie systems;
(10) Chemical Sludge Conciftioning. The addition of a chemical compound such as time, fenic chloride, or a polymer to wet sludge to coalesce the mass prior to
its application to a dewafering device;
(11) Closed Cycie Syslems, Use of holding ponds or hokAng tanks for containment of wastewater containing Inorganic, non -toxic materials from sand, gravel,
crushed stores or other similar opsrailone. Such systems shall carry a maximum of two points regardless of pumping, lacilft3ss or any other appurtenances;
(12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nhrfficalbn- A single stage system required to achleve permit a`iluerx timlts on 300
and ammonia nitrogen within the same blologlcal reactor,
(13) Dechlorinallon. The partial or c*mpleie reduction of residual chlorine In a Iiquld by any chemical or physical process;
ri41 The mnvarx inn nr io,— .,n......... .^