WQ0008034_Final Permit_19940118

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
January 18, 1994
Mr. Allen D. Aldridge, Partner
Ridgefield Partners
4 Hastings
Durham, North Carolina 27707-3643
i4
Am
I DEHNR
Subject: Permit No. WQ0008034
Ridgefield Lot 6A
Single Family Residence
Spray Irrigation Facilities
Person County
Dear Mr. Aldridge:
In accordance with your application received June 15, 1993, we are forwarding herewith Permit
No. WQ0008034 dated January 18, 1994, to Mr. Allen D. Aldridge, Ridgefield Partners for the
construction and operation of the subject three bedroom single family residence spray irrigation wastewater
treatment and disposal facilities. Please note condition no. V.3 of this permit shows this permit is not
transferrable and requires that a name change or change of ownership shall require submittal of a formal
permit request to the Division.
This permit shall be effective from the date of issuance until November 30, 1998, and shall be
subject to the conditions and limitations as specified therein. Please pay particular attention to the
monitoring requirements in this permit. Failure to establish an adequate system for collecting and
maintaining the required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable to you, you have
the right to request an adjudicatory 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, PO. 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 NftWin-Seymour at 919/ 733-5083.
Sincerely, n
A. Presto i Howard, Ir.,I
P.E.
cc: Person County Health Department
Raleigh Regional Office
Facilities Assessment Unit
John A. Edwards & Company
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SINGLE FAMILY SPRAY IRRIGATION PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amender
and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Mr. Allen D. Aldridge
Person County
10
construction and operation of a 360 GPD spray irrigation wastewater treatment and disposal system
consisting of a 1,000 gallon septic tank, a 1,000 gallon pump tank with a 12 gpm pump, a 141 ft2
pressure dosed surface sand filter with cover (dual 70.5 ft2 tanks in parallel), an in pipe tablet chlorinator,
a 2,000 gallon combination chlorine contact and 5 day storage pump tank with 17.5 gpm capacity pump, a
12,400 ft2 spray irrigation area (minimum required area) with five 3.5 gpm sprinklers, and all associated
piping, valves, controls and appurtenances to serve the Ridgefield Lot 6A Residence, with no discharge of
wastes to the surface waters, pursuant to the application received June 15, 1993, 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, 1998, and shall be
subject to the following specified conditions and limitations:
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, PO. Box 29535,
Raleigh, NC 27626-0535.
2. The Raleigh Regional Office, phone no. 919/ 571-4700 shall be notified at least forty-eight
(48) hours in advance of operation of the installed facilities so that an in -place inspection
can be made. Such notification to the regional supervisor shall be made during the normal
office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.

3. The spray irrigation facilities shall be effectively maintained and operated at all 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 immediate
corrective action to correct the problem, including those as may be required by the Division
of Environmental Management.
4. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
5. The sand media of the pressure loaded surface sand filter must comply with the Division's
specifications. The engineer's certification will serve as proof of compliance with this
condition.
6. A leakage test shall be performed on the septic tank and dosing tank to insure that any
exfiltration occurs at a rate which does not exceed twenty (20) gallons per twenty-four (24)
hours per 1,000 gallons of tank capacity. The engineer's certification will serve as proof of
compliance with this condition.
7. If excavation into bedrock for the septic tank or sand filter installation is required, the pit
shall be lined with a 10 mU synthetic liner.
8. 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.
9. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
10. A protective support shall be installed for each sprinkler riser pipe.
11. The following buffers shall be maintained:
a) 400 feet between wetted area and any residence or places of public assembly under
separate ownership,
b) 100 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 treatment/storage units and any wells,
g) 50 feet between treatment units and property lines.
* Please be advised that the property line buffer has been reduced from 150 feet,
by a waiver granted from the Division. At least 100 feet of property line buffer must
be maintained a
1. The facilities shall be properly maintained and operated at all times.
2. A suitable vegetative cover of the spray area shall be maintained.
3. Irrigation shall not be performed during inclement weather or when the ground is in a
condition that will cause runoff.
12

4. Adequate measures shall be taken to prevent wastewater runoff from the spray field.
5. The average annual weekly application rate shall not exceed .326 inches at an instantaneous
application rate not to exceed .105 inches per hour.
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. No type of wastewater other than that from the three bedroom Ridgefield Lot 6A Residence
shall be sprayed onto the irrigation area.
8. In the event that the sprinkler heads fail to achieve the design diameter of 64 feet due to
obstructions, the obstructions shall be removed or the sprinkler heads shall be raised and
supported to such height that the design diameter is achieved.
9. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
10. The Permittee is responsible for the operation and maintenance of the entire treatment and
disposal system including, but not limited to, the following items:
a. The septic tank shall be checked annually and pumped out as needed.
b. The tablet chlorinator shall be checked every week. Tablets shall be added so as to
provide proper chlorination.
C. The storage, pump, and alarm systems shall be inspected weekly. The scum layer
shall be removed at the same interval as the septic tank is cleaned out.
d. The spray system shall be inspected weekly to make certain of the sprayers proper
operation, that the vegetative growth allows proper spray pattern, that the soil is
absorbing the disposed treated wastewater with no surface runoff, and that no
objectionable odors are being generated
1. Any monitoring 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. The Permittee shall maintain records of all maintenance performed on the system and
irrigation area as required in Condition 11.10 for a minimum of five years. This
information shall be provided to the Division of Environmental Management upon request.
3. 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 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, spray heads, etc.
13

b. Any failure of a pumping station 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.
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.
WEBROW Btu I 111OL9
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
2. 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.
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans, specifications, and other supporting data.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit request must be
submitted to the Division of Environmental Management accompanied by an application
fee, documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of this request will be considered on its merits and may or may
not be approved.
4. Upon the availability of a municipal or regional sewerage collection system, the subject
wastewater treatment facilities shall be abandoned and all wastewater discharged into the
municipal or regional sewerage system.
5. The spray irrigation field shall be fenced with at least a two strand wire fence.
6. 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.
7. 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.
8. This permit may be revoked if the Permittee fails to abide by the conditions of the operation
and maintenance agreement previously signed by the Pernttee.
9. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of the project.
14

10. 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 18th day of January, 1994
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston dvironmental
ward, Jr., P.E. Director
Division of Management
By Authority of the Environmental Management Commission
Permit Number WQ0008034
15

Permit No. WQ0008034
January 18, 1994
I & 0a� 'ram i ,10M
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, fuU time) the construction of the
project,
Project Name
for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of the approved plans and specifications.
Signature
Date
V
Registration No.

OPERATION AND MAINTENANCE AGREEMENT FOR THE
DIVISION OF ENVIRONMENTAL MANAGEMENT
S-r _f,3
DATE
Ridgefield Partners
4 Hastings
Durham NC 27707-3643
Single Family Residence
Wastewater Treatment System
Final Disposal by Spray Irrigation , Lot 6A Ridgefield Subdivision
Person County
I agree to operate and maintain the wastewater treatment system as follows:
1. The Permittee is responsible for the operation and maintenance of the entire treatment and
disposal system including, but not limited to, the following items:
f
a. The septic tank shall be checked every six (6) months and pumped out as required.
b. The tablet chlorinator shall be checked every week until the actual usage rate is
established and thence on a monthly basis. Tablets shall be added so as to provide
proper chlorination.
C. The storage system, pump system, and alarm system shall be inspected monthly.
The scum layer shall be removed at the same interval as the septic
tank is cleaned out.
d. The spray system shall be inspected monthly to make certain of the sprayers proper
operation, that the vegetative growth allows proper spray patterns, that the soil is
absorbing the disposed treated wastewater with no surface runoff, and that no
objectionable odors are being generated.
2. FaiIure of the Permittee to properly operate this system is subject to a penalty up to $10,000
per day.
3. Failure to meet permit conditions or violation of the State's surface or groundwater
regulations will require cessation of occupancy of the residence.
I understand that failure to comply with these conditions along with the permit conditions may
result in voiding the permit.
Si n4ture of t an
For Ridgefield P ers
Notary Seal and 'Signature

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1 SCALE 1:24 000
* 1 0 1 MILE
wµ 100D 0 1000 200D 3000 40DO 5000 6000 7000 FEET
e jJla,4 ` 1 .5 0 1 KILOMETER
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i� MILS 1.13' ;nd";d� r�� r� CONTOUR INTERVAL 10 FEET
22 MILS NATIONAL GEODETIC VERTICAL DATUM OF 1929
AND 1981 MAGNETIC NORTH -
TlON AT CENTER OF SHEET
THIS MAP COMPLIES WITH NATIONAL MAP ACCURACY STANDARDS
FOR SALE BY U. S. GEOLOGICAL SURVEY, RESTON, VIRGINIA 22092
A FOLDER DESCRIBING TOPOGRAPHIC MAPS AND SYMBOLS IS AVAILABLE ON REQUEST

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
f Name of Facility: 9 i r&5 : f. r z fd 5 k% riL>L}b� Lot CA S %� S►bt
Owner or Contact Person: My% A llt�t
Mailing Address: a01 72 D
N, County: p Prra+7 _ _ __ Telephone:
Present Classification: New Facility jGExisting Facility
NPDES Per. No. NC00 Nondisc, Per. No. jV o -Fc-?9Health 'Dept. Per. No
Rated by: X, f±1, ot,► Telephone: Date:
Reviewed by: T Health Dept. Telephone:
-Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telephone
Check Classification Is): Subsurface )I/ Spray Irrigation LandApplication
Wastewater Classification: (Circle One) 0 11 111 1V Total Points: i z,
-;• r - r • -• • • r -•r •
►� ti a► a / .."ill . lu 1 a•.i 1� ia� • �► 1. :►!� i'� Wit,. i ►�.
SUBSURFACE CLASSIFICATION
(check all units that apply)
1. seplic tanks
2. pump tanks
3. siphon or pump -dosing systems
4. sand fillers
5. grease traplinlerceplor
6. oil/walef separators
7- subsurface treatment and disposal:
oravily
❑ressure
SPRAY IRRIGATION CLASSIFICATION
(check all units that apply)
1. preliminary treatment (definition no- 32 )
2. lagoons
3.V_septic tanks
4. ✓ pump tanks
5. i/ pumps
6. ✓ sand fillers
7. grease trapknterceptor
8- oil/water separators
9disinfection
1 D. chemical addition for
nutrient/algae control
11,_je!�_spray irrigation of wastewater
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 CLASSIRCATION (Applies only to permit holder)
1- Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY CIASSIF)CATICN
The following systems shall be assigned a Class 1 classification, unless the flow is of a significant quantity of the technology is
unusually complex, to require consideration by the Commission on a case -by -case basis: (Check if Appropriate)
1 Oillwaler Separalor Systems consisting only of physical separation, pumps and disposal;
2- Seplic Tank/Sand Filler Systems consisting only of septic tanks, dosing apparatus, pumps,sand lifters, disinfection
and direct discharge;
3. Lagoon Syslems consisting only of preliminary trealmenl, lagoons, pumps, disinfection, necessary chemical
treatment for algae or nutrient control, and direct discharge;
4. Closeddoop Recycle Syslems;
5. Groundwater Remedialion Syslems consisting only of pumps, air -stripping, carbon adsorption, disinfection and
disposal;
G. Fish larms with discharge to surface waters;
7. Wafer Plant sludge handling and back -wash water lrealmenl;
8. Sealood processing consisting of screening and disposal.
9. Single-family discharging systems with the exception of Aerobic Trealmenl Units, will be classified if permitted alter
July 1, 1993 or if upon inspection by the Division, it is found Thal the system is not being adequately operated or
maintained. Such systems will be notified of the classification or reclassification by the Commission, in writing.
4

The following scale is Used for rating wastewater treatment €aciliiies: (circle appropriate
points)
ITEM
POINTS
(1 ) Industrial Pretreatment Units or Industrial Pretreatment Program (see dallnition No. 33)...................................................4
(2) DF,;GN FLOW OF PLANT IN gpd (not applicable to non -contaminated cooling waters, studga handling '
faciRies for water purification plants, totally closed cycle sysiams(see definition No. 11). and laciliiies
consisting only of item (4)(d) or Items (4)(d) and (11)(d))
0 - 20,000................................................................................................................................................1
20,001 - 50,000........ ......... .......... ....... ...... ............................... ................... :.................... ......................2
5 0, 001 100,000............................................................... .........................:........................................I...3
100,001 - 250,000............... ................................................................................................................... A
250.001 - 500,000........................................................................................................ .5 ..........................
500,001 - 1.000.000........................,............................................................................I..........................8
1,000.001 - 2,000,000...........................................................................................................................10
2,000,001 (and up) rate 1 point additional for each 200,000 gpd capacity up to a
Design Flow (gpd) Jiro maximum of........................................................................30
(3 } PRELIMINARY UNITS/PROCESSES (see definition No.32)
(a) Bar Screens...............................................................................................................................................1
or
(b) Mechanical Screens, Static Screens or Comminuting Devices...-,, ........... . .... .................................
(c) GrIl Removal .............................. :..................................................... ...........................................................1
or .
(d) Mechanical or As rated Grh Removal .............................................................................................................2
(e) Flow Measuring Device................................................................................................................................1
or
(I)
instrumented Flow Measurement.................................................................................,...............................2
(g)
Proaerallon...............................................................................................................................................2
(h)
Influent Flow Equalization..........................................................................................................................2
(1)
Grease or Oil Separators - Gravity...........„ ......... ................................ .......................... .............................. 2
Mechanical.................................................................................................................................................3
Dissolved Air Flotation................................................................................................................................8
(�)
Prechlorinatlon........................................................ .......................... ............................................... .........5
(4) PR1MARYTREA7MENT LJNITSrPAOCESSFS
(a)
Septic Tank (see dolinition No. 43)................... ....................................................................................... ..�
(b)
Imhoff Tank...............................................................................................................................................5
(c)
Primary Clarifiers ..........................................................................................................................................5
(d)
Selliing Ponds or Settling Tanks for Inorganic Non -toxic Materials (sludge handling lacil}iles for
wale( purification plants, sand, gravel, stone, and other mining operations except racrealional
activities such as gem or gold mining)........................................................................................................2
(5) SECONDARY TREATMENTUNI STPOCESSES
(a)
Carbonaceous Stage
(€) Aerallon-High Purity Oxygen System...............................................................................20
DiliusedAir System...............................................................................................:.......1 0
Mechanical Air System (Iliad. floating or rotor)................................................-.................8
SeparateSludge Reaeralion.............................................................................................3
(fi) Trickling Filter
HighRate.. ..................................................................................................................... 7
StandardRate................................................................................................................5
PackedTower.................................................................................................................5
(ill) Biological Aerated Filter or Aerated
Biological Filter..................................................:..........................................................1 0
(IV) Aerated Lagoons ........... .................... ,...................... ................................ .................... 10
(v) Rotating Biological Contamrs......................................................................................10
(vi) Sand Fillers -Intermittent biological .......................... .„.................................................. 0
Recirculating biological.....................................................................................................3
(vii) Stabilization lagoons ........................ ..................................................... .:. .................... S
(VIR) Clafdier...........................................................................................................................5
(lx) Single stage system for combined carbonaceous removal of BOD and nitrogenous
removal by n€Irif€carron (Soo deiinil€on No. 12)(Polms for this horn have to be In
addition to [isms (5)(a)(i) through (5)(a)(v€il),
utilizing the extended aeration process (see definition No.3a)...........................................2
Utilizing other than the exlanded aerallon process.....:......................................................a
(x) Nuiriam additions to enhance BOD removal......................................................................5
(XI) Biological Culture (-Super Bugs`)addition........................................................................5
(b)
Nitrogenous Stags
(i) Aeration - High Purity Oxygen System.............................................................................20
DiffusedAir System ................................... ............................ ........................... I ............. 1 0
Mechanical Alt System (fixed, floating or rotor) .......... ................ ....................................... a
Separate Sludge Reaeral€on.............................................................................................3
([i) Trickling Filler -High Rate...................................................................................................7
StandardRve................................................................................................................5
PackedTower..............................................................................................................5
Filter
(iii) Biological Aerated or Aerated Biological Fitter...................v.................................. .10
(iv) Rotating Biological Conlactors.................................................................L...................10
(v) Sand Filter- intermittent biological...................................................................................2
RecirculatingNOIDOIcal....................................................................................................3
(vi) Claritier.........................................................................................................I................5
(6) TERTIARY OR ADVANCED TREATMENTLNITSPAOCESSES '
(a)
Activated Carbon Beds - -,
without carbon regensration....................................................................................................5
withcarbon regeneration.......................................................................................................15
(b)
Powdered or Granular Activated Carton Food- •
without carbon reganeration..................................................... .............................................. 5
with carbon regenoralion........................ ...... ............. ............... ................ I ................ I ........... 15
(c)
Air stripping ................................................ .................... ......... ........................................................ ............ 5
(d)
Deni;riiicarron Procoss...........:'. 4................ ............................................... ......... ........................... .......... 10

(a) Electrodialysls ....... 5
(h) Larxi App;;calion of 'Treated Effluent (see definition No. 22b) (not applicable (or sand,
^—(V Post A"mllon'curicude........................................................ ; .—' --'------..'~—.-----o
~~ diffused o,mechanical ....................................................................................... .2
(in) Reverse Osmosis ---'------'.--'—_________----'_—_—____—_____�
(n) Sandmuu"�u"murm"m' m° rate ............. ......................... —.......................... —o
highrate .... ................................................................. o
rmmm"mprocess ^o(or removal of metal onvoau ----.---_--'--------.—~--.--''15
h4 treatment processes for mmvnuoftoxic materials other manmo* or .................,^—xn
<n mLUcwsTnsxnwmNT
<u> Sludge Digestion Tank Heated ............................................................................ ..........................xn
^o=om o
u"xoaloo o
(o) Sludge a'abm,*m`o(m`mn/muor thermal) ..................... ............................................................. ..............
.s
<c) Gravity.............. ........ .............. ..................................... ....... "...................
�--'�
—Vacuum ---.........................................................................................................
......................
---`---`—
����^.~..~�����
(u) RESIDUALS UrILIZATIOWDISPOSAIL (inu"mngIncinerated ash) '
(a) . 2
(b) Land Application (surface and subsurface) (see defiriiIion 22a)
by contracting to a land application operator or landfill operator who holds the larill
(s> um°�
Chlorination....................... ....................................................................... '.......................................... s'
oou,*oomwo.................................................... ...................... ..................................... ...................... s
Ozone......................... ......................... .......... .............. -----................. ............. ....... ---....... 5
(6) n^uz10on.................................... ... .................... ....................... .........................................................
�
<`v> CHEMICAL AomITmwunSTsw umman No. admwns rated v»xwn
(4(1).(5)(a)(xV'{6)(a)'(6)(b]'(/)(b).(/)(9).<9a>. (9)tb)»'(9)omspoints each:
m^ ----'--'--'—'—_----_--_—_------'_--_----�
--.......... ...... .................................... ....... ...... ...... --.................... ...............
..................................... ........................... --`--................... .............................
............................................. ....... '—......... ................................... .........................
(11) woCsuLA«soUSuwnSIrnonsaaES �
(a) Holding P"5, Holding Tanks or Settling Ponds for Organic or Toxic Malefials Inclu ding wastes
from mining operations containing nitrogen or phosphorus compounds In amounts fi�gniflcanlly
(x) Effluent Flow Equalization (not applicable to storage basins whicare Inherent wland upplicullon
W Stage Discharge (not applicable to storage basins Inherent. In land application systems) .............. I I ... I ....... 5
``, Pumps
(/) Thermal Pollution Control Device ............................ ........... ............ ..................................... .............. ... 'x
TOTAL POINTS ............................. .............................. ............
��_
CLASSIFICATION
.......... ............. ................................................... s-2s pmms
— c��n----.~_---------.---'-----.----'—_uuau pomw
cussIII ...... ....................................... ...................... ... .............. _—....... s1'so r"m`n
Classw..................................... —....... .............. ...................... ................ a6-uv pmma
Facilities o*wiw*ra/mnmone through four pviril".Inclusive, opnot require awmo"owmpu*r.
�
Facilities having vnacw^"usludge process Wig uvassl»neuuminimum classmca/ioomClass n.
Facilities having treatment pr0C^SSosfor the mmvnuo/Metal = cyanide will »" assigned "m/ymomau,uncaowmClass u
Facilities having treatment processes for the biological removal "/n�ovpm`m""�no°assigned a,m"/momuao^nicado"o/Class fit.
�
.CON DEFINITIONS
The following dao*vshall applythroughout nix Sk4w. /
(1) Activale d Carbw 13ods. A physic alkhonlkal method lot rtdut;ng 59ILWO organic M21[V; 01 IT� VV4 stuwstor of6y font; Tho columtype bacls used in H. matho<l will h-4
a flo, rate varying from two to eight gallons per rrimtte Pot SqU3rQ foui and may W althoc uplfow ff doymAaw carbon
Carbon may or may 1101 be (09000f2fed on the
°"m°°^w,^,,�"m�""/m.: �
pvs�"/wL"voo°. ^ basin inwhich all solids are ""/"."*sd*suspension and ^,vehic^biological oxidation or organic mallet Isreduced wough"m^.^tly"ccm""m^
lianslor of oxygon on a flow -through basis:
J3) Aoraijon. A pro�oss *I Ixtr4ng sboiri Intimsio comisci bolwoon air or high purity oxygen In P lisfuld by spraying, agitation w dill�ionj3s) E�ionclocf Awa6cn. An
(4) AgriciAILXally Managed silt. My silt on which a crop is prod�ad, w�nagod, and harvesiod (C4op Irmloclas grasses. grains, "as. Ole.);
(5) Air Shipping, A process by which no amnnonl� Ion is &W cwworied to dsso?yod ammonia (pH idiusbronQ with the ammorqs then ?6192sod to the atrnosphwi by
physical means: or other sirr0° which re""ve
(o) Carbon Regeneration. Tho isganoraiion of exhausted carbon by V" 14p of a lixnace ic provide extremely high lem9walves which volaVize and oxidize tho atwbod
(7) Cirbanacootis Stage. A stage of waslawaiii Vestment, closignod to Reticles 'secondary& obtiant rialils:
(0) Centrifuge, A mechanical d9vica, In wKch centrifugal torso is usad to separate solids from gods at to sopar - ate licidds of 0 latent donsitiati
(9) Chemical Addition Systems- The addition of chamical(s) to w2stvwatai at an application point for p�xposes a, impeming solid, pH
wc,: the �apabZlily W 4xp0timcini win dififoronI chemicals and dl;stenl application points W achi@Y4 a spocifie'rosult will to co,�sidOfld onu sy,4"�iho cipaUlity to adil
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utsnn a,us� ,.. ­ ­­ -- ­­ -- ...n -r-r_�...f _. _. - _.. ory..�. _r�.,rI h...� — .•�nrsvr r pvrpos as wen su reu un azw syssvms oerng
rated as sapsrati• syslems; - , ..,
(10) Ckw Cries; St.adge Conditioring, The addicvn of a chemical compound weh as lime, lerfie ehloide, or a polymer to wet Audgv to coalesce the mass prior to Its
application to a lkwalering dovice: '
(11) Closed Cycle Syslorns- Use of holdng ponds or ho€rfr,g lark% Ior corrfainmanl of wastewater comairing Irtorgaric, non -lox: r. ntarlals from rand, gravel, crushed
stone or�odher slmlar operations. Such systems shall carry a tmaximum of two points regardless of pumping lacilitias or any otter appunenances�
(l2) Gombinad flemovaf of Carbonaceous BOO and Nitrogenous Romoval by N€vification- A single stage system required to acHwe permll eKlvanl limits on BOD and
ammonia tilra,goyn witHn no same halo€ogical reactor;
(13) Dochtorinallon. The partial cc complete red;xlion of residual cloninw In a liquid by any chardcaf or physical process;
(tt) Deritrification Process, The conversion of nitralo-nitrogen to rilrog4<i gas;
(t5) Elocitodalysfs. Process fc-r removing Ionized salts from water through the use of lon-salectivo Ion-oxchango Moorbranes; '
(16) Flue{ Press. A process operated moctsarically for partially dewataring sludga;
'7) Foam Separation. The planned fmtling of wastewater or wastewater ehtvank as a means of r9mooAng excess€ver amounts of datorgard materials through no
'rodudion of air In the form of fine bubbles; also callod foam fractionation;
.16) Grit Remtwal. The process of removing grit and other heavy rrirwral matter from wastewater; -
(19) Imhoff Tank. A deep tvia story wastewater tank consisting of an upper so6mwrriation chamiber and a loww sludga digastion chamber,
(20) lrxtrurnemted Row Meavxomon4 A device which indcatas and records raly aI riow;
(21) Son Exchange. A cherrical process in which Ions from two diriwont molocsyes are exchanged;
(22) land •app€icalion:
(a) Sludge Disposal. A final sludge disposal method by which wal sludge may use applied to land either by spraying on the surface or by subsurSace Injection (i.e..
cHsDl plow): Inol appliciNo for types of sludge described In (1 i) of this Rile]: -
(b) Trealed Effluent- The process of spraying trawled waslawaler unto a find area or olhar nwthods of application of wastewater onto a land area at a means of final
disposal or treatment; -
(23) Microsra'sen. A low stead, congnuovsfy back -washed, ratating dram filler -operating under gravity condtions as a polishing method for removing W"rsded solids
from effluent;
(24) Ffrrtrification Process. The biochemical conversion of Unoxidkzad nitrogen (ammonia and organic ri lrogon) to oxidized nitrogen (usually nitrate):
(25) Nitrogenous Stage. A separate stage of waslewaiar treatrnenl designed to( the specific purpose of converting amrnoria nitrogen to nitrate.n€trogen•
(26) Phosphate Remrval, 0ological- The removal of phosphorus from wastewater by an oxicianoxic process designed to enhance luxury uptake of phosphorus by the
micoorganlsrns•
(27) Pdi[sNng Fond. A holding pond lolioorirg secondary Vearnord with sulliicienl delontion lima so allow settling of finely suspended solids;
(29) Post Aeration. Aeration following conventioml saconda✓y treatment urifis to increase aHluont D.O. or for any othar purpose;
(29) Post MraBon. (Cascada) A polisHng method by wHch dissolved oxygen Is added to the Wuoni by a norrmc harieal, gravity means of flowing down a series of
,steps or weirs; The floe acchrring across the steps or weirs rrnves Ina fairly tin layer and the operation of the cascade roq.fues no operator adiustrrsonl: thus, zero
point& are ass grsed even though tHs is an azsensaf slap to rneotng the linils of the discharge permit;
(30) Powdered to Granular Activaled;Carbon Feed. A biophysical carbon process that utilizes. biologcal activity and organic absorption by using powdered or grarxrlar
ac5v2led carbon; Virgn or regenerated carbon Is lead controlled Into tha system;
(20 Preaeratim. A lank construcled to provide aeration prior to primary vealrngnt;
(32) Preliminary Urils• Unit operations in the trealrnonl process, such as scrowirg and comminution, that piopato gat liquor for subsequent major operations:
(33) Industrial PrevealrnarA.
(a) Pre•treatrnenl Unit. Industrial. The condlioring of a waste at its source bgfare discharga, to rempva ar to rhatrtrailze substances Injurious to sewers and treatment
pfacwsses or to ellecl a partial feduction In load on the traatrme(A process which Is operated by the same govarring laody as the wastewater treatment plant being
rated;
b) Pre-treatment Program• Induskial - must be a Stale or EPA requred program to receive points on the rating shoot;
(34) Primary C409rs. TI1e first settling €arks through which waslewalar is passed in a treatment works for the purpose of tomoving selsleabie and suspended solids and
SOD which Is associated with the solids;
(35) Pumps. All Inhubm. elfiuenl and Irrplant; pumps;
(36) RadaSon. Disinfection or slerilizalion process utilizing devices enirfng u1travV9( or gamma rays;
(37) Reverse Osmosis. A lreatrnonl process in which a heavy contaminated liquid Is pressurized 0yough a membrane farming nearly pure liquid free from suspended solids;
(38) notating Bialogicai _Canlractors- A fixed biolog€cal growth process in which waslawaler flows thrccrgh tanks in which a series of partially submerged choicer Srfaces
are rotated: _
(39) Sand Allars:
(a) inlernitlent Biological. Fillration of orflursnt fallowing septic Larks, lagoons, or soma other trealmgni process in which hxi4or biodecomposltion is expected to
produce deslred alftuonls; Hydraulic loading ralas on these fillers are computed in gpdtac and have a resulting low 9pnV41 (loss than one):
b) Rocireziating bldDgical - the 'same type or sand filter as defined in Subparagraph (39) (a) of this Rule with 1Yhe added capability to recycle affluent back through tho
sand filter;
NO) Sand or Wxod-Media Filters. A polishing process by wHch etfluenl 11111ls are achieved through a further reduction of suspended solids-,
•ye) IcW rate •• gravity, hydraulically loaded filler vrilh loading rates In she one to three gprrilst range;
(b) Ngh rake •• a pressuxe, hydraulicafiy loaded liher 6iuh loading tales in the five gpmJsl range; At any rate, the loading rate will exceed Woo gpmfs(:
r1) Secondary Ci JAKs. A tank which lollows the biological lrtil of vealment plant and wNch has the purpose of removing sfudgas associated with the biological
Irealrnenl units;
(42) Separato Sludge Reaeraticn. A part of the contact stabilization process wta to the ad$valad sludge is transferred to a lank and aerated before rehiring ii to the
contact basin' -
(43) Sepllc Tank, A single -story settling tank in which settled sludge Is in conuacl with the wastewater flowing through the lank; shall not be applicable for septic tank
syslem,s serving single Zanily residences having capacity of 2.000 gallons or less which discharge to a ril66capon field;
(44) S)udge Digestion. The process by wHch orgaric or volatile matter and sludge is gasified, liquefied, mineralized of canvaned into more stable organic matter through
!he activity of living crgadsmts, which includes aerated holding tanks;
(i5) Sludge Drying Bads. An area corrprising natural or artificial fayors of porous materials upon Which digested sewage sludge is dried by drainage and evaporation;
(<6) Sludge Elutialion. A process of sludge cond6aning In which certain constituents ors farnoved by wccessiva washings with trash water or plant eflluonl-
(57) Sludge Gas Utilization, The process or using sewage gas for the purpcsv of heating buildings, driving engines, etc.;
(46) Sludge }Folding Tznl (Aerated and Norueralad). A tank utilized far small waslawaler treatment plank not conlairing a dges(or-in wNch sludge may be kept fresh,
and wpernalanl with}'awn prior to a drying metilod (i,e- sJudge drying beds); Tiffs may be done by adding a small ammxl4 of air simply to keep the sludge fresh, but not
necessarily an amount that would be required to acHave slabilization of organc natter, A nonaorafed lank would simply be used to docent sludge prior ko dewxtering arad
would not allow long peflods (several days of detontion) wilhhoLd rosining Ddor probtems;
(49) Sludge Incinarala's, A hxnace designed to bum sludge and to remove all masture and combustible materials and reduce Ina sludge to a sterile ash;
(50) Sludge Stabilization (Chemical or Thermal). A process to make treated sludge less odorous and putreseibie• and to to -duce the pathogenic orgarism eontont• This may
be dorw by pH adlustrnent, eHorino dosing• or by Not treatment; -
(51) Sludge THckonw. A type of sedimentation tank In which the sludge is pe;n=ined to sehlo and thicken through agitation and gravity;
(52) Stabliization Lagoon. A typa of oxidation Lagoon in wNch biologinf oxidation of organc matter is elfecled by natural transfer of oxygen lD the water from air (not a
polishing pond):
(53) Stand -fay Power Supply. On site a phrtablo electrical ganwating ogdpm:n:: '
(u) Slatic Screens, A stationary screen designed to fotnove solids, inducing non•biodagadable particUate (fioalablo solids, suspended solids and BOO reductim) from
municipal and industrial waslawaler treatment systems:
(55) Tertiary TrazSmr✓i. A stage of treatment [allowing secondary wHch is primarily la the purpose of effluent polisHitg; A settling lagoon or sand or coal filler m°ght ba .
amf�,oyed for this purpose; - -
(56) Thermal Po€lurdon Control Device, ' A device providing for Ina vanslor at h:at horn a wid flowing in lobes to another fluid oulsidg the lvbos, a, vice vorsa: kr other
rraans of rogutating liquid lomporaturvs;
(57) Thermal Sludge Corh61tid ot. A condlionirhg process by which heal is adds, for a protracted period of lima to improve the do-Hatarxbility, of sludge by the stabilizing
and hydrmdizing of the smallor and marts highly hydrated sludge particles,
(50) Toxic fdalwials- Those wastes or cornbina Dons of waslas, ir> lvding dlsessa-causing agents which aflor cischatgo and upon exposure, lrggslion. Inhalation or
assimilation Into any agar;sm• either direc0y Irorn the orreifonmeni a indrectly by ingestion through food chains, will iause death, disease• behavioral abn Drmaiiligs,
cancer, gnnn;ic muia:ions, physidogical malhmclions (including mailuncpons in reproduction) or physical deformations. In such organisms or Choir offspring: Toxic maloriats
include, by way of illustration and not linilalion: lead• cadmium chromium, rnwcury, vanadum arseric, zinc, or�ho-rifro-cNorobamono (ONCO), poiychlorinated biphenyls
(PCBs) and dchtvodphanyl trichloroethxne (DOT): and any other materials that have a may hefoallor be deleirrined to have toxic pmper0as;
(59) Trickling Filler. A. bofogical treatment uril consisting of a'matwial such as tcdcgn siona or rock, over which waslowalor is dstribulod; A. Ngh :a!o irickling' Ide ler is on
which oporattsd at bo:.wtsan so and 30 mgd par acre. A low rate trickling fitter is one which is designed to oporatn at one to four rngd par acre;
([tit) Trickling Finer [Packed Tower). P, t" flow typo of oporalion in wh'ch wastewater taws down through snrcossivo layofs of made or filvalo maivriof: Grgarlc malorizl
is temovod confirxrally by IIO active bio.'ogical fixod growth in' each successive Isyor. Ttrs method may produce 'socon0ry- quality offiuwd• or mrjy bo adzplec to
psedu[o a ritrilied omumit;
'51) Vadv-ahi Filter. Cez:�iluges• or Fdlor Precsws_ DO,4cos which are dasignec a tonnovo axcuss water from oilhef dgOtnd Dr undgo5103 studg'ui-0. or to cisoraal eC
'her Irvaun9-IL -