WQ0001048_Final Permit_19940630

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
June 30, 1994
Mr. Gene Coley, District Manager
Contentnea Metropolitan Sewerage District
Post Office Box 477
Grifton, North Carolina 28530
lilww
[DEHNR
Subject: Permit No. WQ0001048
Contentnea Metropolitan Sewerage District
Land Application of Wastewater Residuals
Pitt County
Dear Mr. Coley:
In accordance with your application received on December 22, 1993, we are forwarding herewith
Permit No. WQ0001048, dated June 30, 1994, to Contentnea Metropolitan Sewerage District for the
continued operation of a wastewater residuals land application program.
This permit shall void Permit No. WQ0001048 issued March 19, 1993 and shall be effective from
the date of issuance until May 31, 1999, and shall be subject to the conditions and limitations as specified
therein. Please pay particular attention to the monitoring and reporting requirements contained 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 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.
If you need additional information concerning this matter, please contacfi: sM >- Bela Y. Griffin at
[phone].
Sincerely,
A. Press n Howard, Jr., P.E.
cc: Pitt County Health Department
Washington Regional Office, Water Quality Section
Washington Regional Office, Groundwater Section
Jack Floyd, Groundwater Section, Central Office
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29536, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 5011% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
RESIDUALS LAND APPLICATION 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
Contentnea Metropolitan Sewerage District
Pitt County
FOR THE
continued operation of a wastewater residuals land application program consisting of the application of
approximately 187 dry tons per year of residuals from the Contentnea Metropolitan Sewerage District
wastewater treatment facility to approximately 53 acres of land in Pitt County with no discharge of wastes
to the surface waters, pursuant to the application received on December 22, 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 void Permit No. WQ0001048 issued March 19, 1993 and shall be effective from
the date of issuance until May 31, 1999, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARD
1. This permit shall become voidable if the soils fail to adequately assimilate the wastes and
may be rescinded unless the sites are maintained and operated in a manner which will
protect the assigned water quality standards of the surface waters and ground waters.
2. The land application program shall be effectively maintained and operated as a non -
discharge system to prevent the discharge of any wastes resulting from the operation of this
program.
3. The issuance of this permit shall not relieve the Permitter, of the responsibility for damages
to surface or groundwaters resulting from the operation of this program.
4. In the event that the land application program is not operated satisfactorily, including the
creation of nuisance conditions, the Permitter shall cease applying residuals to the sites and
take any immediate corrective actions as may be required by the Division.

5. Some of the buffers specified below may not have been included in previous permits f
this land application operation. However, any sites or fields that are included in tr
permit, but were approved with different applicable buffers shall be reflagged to camp
with the below buffers. The following buffer zones shall be maintained:
a) 400 feet from residences or places of public assembly under separate ownership f
surface application method; however, the buffer zone requirement may be reduced t(
minimum of 100 feet upon written consent of the owner and approval from t
appropriate DEM regional office, (this buffer shall not be reduced),
b) 200 feet from residences or places of public assembly under separate ownership f
subsurface residual injection method; however, the buffer zone requirement may
reduced to a minimum of 100 feet upon written consent of the owner and t
appropriate DEM regional office, (this buffer shall not be reduced),
c) 100 feet from any public or private water supply source, waters classified as SA or S
and any Class I or Class II impounded reservoir used as a source of drinking water i
both methods,
d) 100 feet from any streams classified as WS or B, any other stream, canal, marsh
coastal waters and any other lake or impoundment for surface application,
e) 50 feet from any streams classified as WS or B, any other stream, canal, marsh
coastal waters and any other lake or impoundment for subsurface application,
f) 100 feet from property lines for both surface and subsurface application methods for
sites; however, this requirement may be reduced to 50 feet upon the applicants forr
request for a permit amendment and submittal of revised maps for each site reflect'
the revised buffer and acreage,
g) 50 feet from public right of ways for both application methods,
h) 10 feet from upslope interceptor drains and surface water diversions for b
application methods,
i) 25 feet from downslope interceptor drains, surface water diversions, groundw
drainage systems and surface drainage ditches for both application methods.
6. A copy of this permit shall be maintained at the land application site when residual
being applied during the life of this permit. A spill prevention and control plan sha
maintained in all residuals transport and application vehicles.
7. Specific residual application area boundaries shall be clearly marked on each site pr
and during application.
8. No residuals at any time shall be stored at any application site, unless approval has
requested and obtained from the Division of Environmental Management.
9. Maximum slope for residual application shall be 10% for surface application and if
�� subsurface applications.
E 10. When wastewater residuals are applied, the Class A pathogen requirements a]
restrictions in 40 CFR Part 503.32(a) or the Class B pathogen requirements a'
restrictions in 40 CFR Part 503.32(b), and one of vector attraction reduction requir
{ in 40 CFR Part 503.33 must be met. Additionally, an evaluation must be performer
demonstrates the residuals ability to comply with this requirement. Upon request.
of this evaluation must be submitted including all test results and calculations.
II. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities and application sites shall be properly maintained and operated at all t
FA

2. A suitable vegetative cover, as listed in condition 114, shall be maintained in accordance
with the crop management plan outlined by the local Extension Office of the Department of
Agriculture, or the Soil Conservation Service, or other agronomist, and approved by this
Division.
3. An acceptable pH must be maintained in the soil, residual and lime mixture, greater than
6.0, on all land application sites to insure optimum yield for the crop(s) specified below.
The agronomist shall provide information on the pH best suited for the specified crop and
the soil type.
4. The application rates shall not exceed the following for the specified crops:
Crop PAN 1 r r
Alfalfa
200
Bermuda Grass (Hay, Pasture)
220
Blue Grass
120
Corn (Grain)
160
Corn (Silage)
200
Cotton
70
Fescue
250
Forest (Hardwood & Softwood)
75
Milo
100
Small Grain (Wheat, barley, oats)
100
Sorghum, Sudex (Pasture)
180
Sorghum, Sudex (Silage)
220
Soybeans
2D0
Timothy, Orchard, & Rye Grass
200
5. No residuals other than the following are hereby approved for land application in
accordance with this permit:
Permit Estimated
Source County Number Volume d tonalyead
CMSD WWTF Pitt NCO032077 187
6. The metal loading rates shall not exceed the following Cumulative Pollutant loading rates:
Paramaers
Kilograms
per Hectare
Pounds
r Acre
Arsenic
41
36
Cadmium
39
34
Chromium
3,000
2,677
Copper
1,500
1,338
Lead
300
267
Mercury
17
15
Molybdenum
----
----
Nickel
420
374
Selenium
100
89
Zinc
2,800
2,498
3

7. The pollutant concentrations in the residuals which will be applied to the land shall not
exceed the following Ceiling Concentrations (Dry Weight Basis):
P_rame_ters
mg/ke
Arsenic
75
Cadmium
85
Chromium
3,000
Copper
4,300
Lead
840
Mercury
57
Molybdenum
75
Nickel
420
Selenium
100
Zinc
7,500
8. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified land application/residuals operator to be in responsible charge (ORC) of
the land application program. The operator must hold a certificate of the type classification
assigned to the land application program by the Certification Commission. The Permittee
must also employ a certified back-up operator of the appropriate type to comply with the
conditions of Title 15A NCAC 8A, .0202.
9. Adequate procedures shall be provided to prevent surface runoff from carrying any
disposed or stored residuals into any surface waters.
10. Surface applied residuals will be plowed or disced within twenty-four (24) hours after
application on lands with no cover crop established.
11. For areas that are prone to flooding or within the 100-year flood elevation., residuals may
be applied only during periods of dry weather. The residuals must be incorporated into the
soil within twenty-four (24) hours after application.
12. Appropriate measures must be taken to control public access to the land application sites
during active site use and for the 12-month period following the last residual application
event. Such controls may include the posting of signs indicating the activities being
conducted at each site.
13. Adequate provisions shall be taken to prevent wind erosion and surface runoff from
conveying pollutants from the residuals application area onto the adjacent property or into
any surface waters.
14. Residuals shall not be applied in inclement weather or until 24 hours following a rainfall
event of 1/2-inch or greater in 24 hours. Any emergency residuals disposal measures must
first be approved by the Division of Environmental Management.
15. Residuals shall not be applied to any Iand application site that is flooded, frozen or snow-
covered.
16. Residuals shall not be applied at rates greater than agronomic rates, unless authorized by
the Division.
17. Animals shall not be grazed on an application site for 30 days after residuals application.
Application sites that are to be used for grazing shall have fencing that will be used to
prevent access after each application.
4

18. Food crops, feed crops and fiber crops ftat do not come in contact with the residuals shall
not be harvested for 30 days after residuals application.
19. Food crops with harvested parts that touch the residual/soil mixture and are totally above
the land surface (ex. tobacco, melons, cucumbers, squash, etc.) shall not be harvested for
14 months after residuals application.
20. Food crops with harvested parts below the surface of the land (root crops such as potatoes,
carrots, radishes, etc.) shall not be harvested for 20 months after application of residuals
when the residuals remain on the land surface for four (4) months or longer prior to
incorporation into the soil.
21. Food crops with harvested parts below the surface of the land shall not be harvested for 38
months after application of residuals when the residuals remain on the land surface for less
than four (4) months prior to incorporation into the soil.
22. Turf shall not be harvested for 1 year after residuals application if the turf is to be placed on
land with a high potential for public exposure.
MONITORING AND, REPORTING REQIUIREMENTS
1. Any monitoring (including groundwater, surface water, residuals, soil, or plant tissue
analyses) deemed necessary by the Division of Environmental Management to insure
protection of the environment will be established and an acceptable sampling and reporting
schedule shall be followed.
2. Proper records shall be maintained by the Permittee tracking all application activities.
These records shall include, but are not necessarily limited to the following information:
a) source of residuals
b) date of residual application
c) location of residual application (site, field, or zone #)
d) method of application
e) weather conditions (sunny, cloudy, raining, etc.)
f) soil conditions
g) type of crop or crops to be grown on field
h) volume of residuals applied in gallons/acre, dry tons/acre or kilograms/hectare
i) annual and cumulative totals of dry tons/acre of residuals, annual and cumulative
pounds/acre of each heavy metal (which shall include, but not be limited to arsenic,
cadmium, chromium, copper, lead, mercury, molybdenum, nickel, selenium and zinc),
annual pounds/acre of plant available nitrogen (PAN), and annual pounds/acre of
phosphorus applied to each field.
3. A representative annual soils analysis (Standard Soil Fertility Analysis) shall be conducted
of each site receiving residuals in the respective calendar year and the results maintained on
file by the Permittee for a minimum of five years.
The Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the
following parameters:
Acidity
Calcium
Copper
Magnesium
Base Saturation (by calculation)
Cation Exchange Capacity
Manganese Potassium
Percent Humic Matter Sodium
PH Zinc
Phosphorus
5

The Standard Soil Fertility Analysis (see above) and an analysis for the following metals
shall be conducted once prior to permit renewal on soils from each site which has received
sludge during the permit cycle.
Arsenic
Cadmium
Chromium
Lead Nickel
Mercury Selenium
Molybdenum
4. A residuals analysis will be conducted annually from the date of permit issuance by the
Permittee and the results maintained on file by the Permittee for a minimum of five years.
If land application occurs at a frequency less than annually, a residuals analysis will be
required for each instance of land application.
The residuals analysis shall include but is not necessarily limited to the following
parameters:
Arsenic
Aluminum
Cadmium
Ammonia -Nitrogen
Chromium
Calcium
Copper
Nitrate -Nitrite Nitrogen
Lead
% Total Solids
Mercury
pH
Molybdenum
Phosphorus
Nickel
Plant Available Nitrogen (by calculation)
Selenium
Potassium
Zinc
Sodium
Magnesium
TKN
After the residuals have been monitored for two years at the above frequency, the Permittee
may submit a request to the Division for a permit modification for the reduction of the
frequency of monitoring for pollutant concentrations and for the pathogen density
requirements, but in no case shall the frequency of monitoring be less than once per year
when residuals are applied to the land.
5. A Toxicity Characteristics Leaching Procedure (TCLP) analysis shall be conducted by the
Permittee annually. The TCLP analysis shall include the following parameters (please note
the regulatory level in mg/L in parentheses):
Arsenic (5.0)
Benzene (0.5)
Carbon tetrachloride (0.5)
Chlorobenzene (100.0)
Chromium (5.0)
m-Cresol (200.0)
Cresol (200.0)
1,4-Dichlorobenzene (7.5)
1,1-Dichloroethylene (0.7)
Endrin (0,02)
Hexachlorobenzene (0.13)
Hexachloroethane (3.0)
Lindane (0.4)
Methoxychlor (10.0)
Nitrobenzene (2.0)
Pyridine (5.0)
Silver (5.0)
Toxaphene (0.5)
2,4,5-Trichlorophenol (400.0)
Barium (100.0)
Cadmium (1.0)
Chlordane (0.03)
Chloroform (6.0)
o-Cresol (200.0)
p-Cresol (200.0)
2,4-D (10.0)
1,2-Dichloroethane (0.5)
2,4-Dinitrotoluene (0.13)
Heptachlor (and its hydroxide) (0.008)
Hexachloro-1,3-butadiene (0.5)
Lead (5.0)
Mercury (0.2)
Methyl ethyl ketone (200.0)
Pentachlorophenol (100.0)
Selenium (1.0)
Tetrachloroethylene (0.7)
Trichloroethylene (0.5)
2,4,6-Trichlorophenol (2A)
Gal

2,4,5-TP (Silvex) (1.0) Vinyl chloride (0.2)
6. All residuals included in this permit must be monitored annually, from the date of permit
issuance, for compliance with condition 110 of this permit. Data to verify stabilization and
vector attraction reduction of the residuals must be maintained by the Permittee. The
required data is specific to the stabilization process utilized, but should be sufficient to
clearly demonstrate compliance the Class A pathogen requirements in 40 CFR Part
503.32(a) or with the Class B pathogen requirements and site restrictions in 40 CFR Part
503.32(b), and one of vector attraction reduction requirements in 40 CFR Part 503.33. In
addition, the EPA certification statements concerning compliance with pathogen
requirements, vector attraction reduction requirements and management practices must be
completed annually by the proper authority or authorities if more than one is involved,
either the person who prepares the residuals, the person who derives the material, or the
person who applies the residuals.
After the residuals have been monitored for two years at the above frequency, the Permittee
may request a permit modification for the reduction of the frequency of monitoring for
pollutant concentrations and for the pathogen density requirements, but in no case shall the
frequency of monitoring be less than once per year when residuals are applied to the land.
7. Three copies of all required monitoring and reporting requirements as specified in
conditions III 1, 1112, 1113, 1114, II15 and III 6 shall be submitted annually on or before
March 1 of the following year to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
8. Noncompliance Notification:
The Permittee shall report by telephone to the Washington 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 with the land application program which results in the land application
of significant amounts of wastes which are abnormal in quantity or characteristic.
b. Any failure of the land application program resulting in a release of material to receiving
waters.
c. Any time that self -monitoring information indicates that the facility has gone out of
compliance with the conditions and limitations of this permit or the parameters on
which the system was designed.
d. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate residual treatment.
e. Any spillage or discharge from a vehicle or piping system transporting residuals to the
application site.
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.
7

IV. GROUNDWATER REQUIREMENTS
1. Monitor wells MW-1, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7, and MW-8 shall be
sampled every February, June, and October for the following parameters:
NO3
Ammonia Nitrogen
TDS
TOC
pH
Water Level
Chromium
Fecal Coliforms
Copper
Volatile Organic Compounds - In October only (by Method 1 or 2 below)
Method 1: Method 6230D (Capillary - Column), "Standard Methods For The Examination
of Water and Wastewater", 17th ed., 1989
Method 2: Method 502.2 "Methods For The Determination Of Organic Compounds In
Drinking Water", U.S. EPA-600/4-88/039
2. 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.
3. 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 mg/1, this concentration will be taken to represent
the naturally occurring TOC concentration.
Any exceedances of this naturally occurring TOC concentration in the downgradient wells
shall be subject to the additional sampling and analysis as described above.
4. If any volatile organic compounds are detected by method 6230D, or the equivalent method
502.2, then EPA methods 604 and 611 must also be run to detect other organic compounds
which may be present. The results of all analyses specified in the monitoring requirements,
including 604 and 611 if required, must be submitted simultaneously.
5. The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29535 Raleigh, N.C. 27626-0535 on Form GW-59
[Compliance Monitoring Report Form] every March, July, and November.
6. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
7. No land application of waste activities shall be undertaken when the seasonal high water
table is less than three feet below land surface.
8. 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.
V. INSPECTIONS
The Permittee or his designee shall inspect the residuals storage, transport, and application
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 maintain 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 five years from the date of the inspection and shall be made available to the
Division of Environmental Management or other permitting authority, upon request.
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 application 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 kept under the terms and conditions of this permit; and may obtain samples of
groundwater, surface water, or Ieachate.
VI. GENERAL CONDITIONS
1. This permit shall become voidable unless the land application activities are carried out in
accordance with the conditions of this permit, the supporting materials, and in the manner
approved by this Division.
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 automatically transferable. In the event that there is a desire for the
facilities to change ownership or 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. The following are approved sites for residuals application (see attached map(s)):
Application Area [acres]
Site No. Owner/Lessee (excluding buffers)
A
CMSD
5.00
B
CMSD
25.00
C-I
CMSD
3.50
C-II
CMSD
16.37
C-III
CMSD
0.75
C-IV
CMSD
2.00
TOTAL AVAILABLE ACRES
52.62

5. 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).
6. The annual administering and compliance fee must be paid by the Permittee 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 15 NCAC 2H .0205
(c)(4).
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. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
9. This permit may be modified, or revoked and reissued to incorporate any conditions,
limitations and monitoring requirements the Division of Environmental Management deems
necessary in order to adequately protect the environment and public health.
10. A set of approved document for the subject project must be retained by the applicant for the
life of the permit.
Permit issued this the 30th day of June, 1994
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
O'L , '0.221C
� I /L
A. Preston *ward, Jr., P ., Director
Division of LInvi ronmental Management
By Authority of the Environmental Management Commission
Permit No. WQ0001048
10

- 1S2 t tR 31flP11. I-. 21
:!i'i�•-50 SITS
*WMARY S1TE
` a
tiHs� � 2 6 AC.
x sof !
M
o w a
t of k11 rgoLIS
ScnuL
:� waOeg.
EXISTING SLUDGE~
a APPLICATION SITE
:S
WCOCS
0-g11T11-h4,he-M /�)<rl
200
� xco .t�o
vrtf r. t' • 400,
I
ij
f= 0.0
.t
tI ❑ � 51TC A ' i If ,=
AC.
SECONJRY SITE"
O°O
fl 1 (1r
11 114 I
_EK_ISTINO BUFFER REQUIREMENTS
PROPERTY LINE - 100'---- `- --
NOrF• INFORMATION ON THIS MAP ROAD MORT-Or- WAY • 100' - - ---•�^ i
WA! TA$(EN FOCM PERMIT
NO. WOOOOI04e, DATED JULY WATER COURSE - 100'•--- ar'
13, 1909 TO CM50, HOUSE - 400' RAi)Il!9 - -- -- ----•+.i
I'EnIMETER OF COMPLIANCE ..............
MONITORING WELL -------• •-- •MW
E The Wooten Company I
CMSU-EXIST1Na
SLUDGE
APPLICATION S ITI;
(U51Tta F,X1311NO eurrtA nFOU4tEMiN75�1
nay C• 61f 4n?I MARCH I Im by,J. W i:.

PITT
I SERVICES
,01D9Pi Ll
ci
�
MW 6
`;',(upyaj )
R S TE
TRACT ME
d��l,l t4IiV' TRACT 2 , .. v •-^Iri?4' f�,"�'i i�'j'w r're'. �F• +.f*s 7ti',•'
WOOn •� ,�.�;.xs.;ri,+�\. f� .,_ r .{, x., r 1:.;'� ;• .7- '.,.
or
wi iY`r3�SSJ!l t( �• 1'•, jj'�.trt' y��'y}�' r� 1?�'S�=rLl 1S:r'•i.�ii•Y'f ' '\,
M."+•vV'•f! ?(; )� L.�� `7' �� �I��^,i �r•:. 37., )'.i•.. •. 31Ti T,�1,� `1 r:J'"�. ,�\ \\;:
;,Y�' fir• L J•\ i'�WOODS
WOODS
w000E ++�It �s r °�`\':; D9 y
M(oar-
r 4J P-l L
a CoC'nplico)G —Bou rld0.
• Yic-w 10+�ndarl
€XISTIN(3 SLUDGE
APPLICATION SITE
( aPAYIOL•tLY rVR-:*TV))
'xI�TiNO ISUFFER r{EQUIREMENTS
P.,,;PERTY LINE
ROAD nIGHT-Or-WAY - 50'------
DRAINAGE f,ITC4i - 1004 EACH SIDE- EE-
HOUSE
&ELC. --- - -- - -- �
scrtul
w
WOODS
C.M.SA. r
1 PLAN r SITE
t
SCALt r t- 400'
The Wpoten Cohipony

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility:
Owner or Contact
Mailing Address: —frU• IZnc-/x Al i'
County: 77PH Telephone: 24— J5564
Present Classification: New Facility Existing Facility
NPDES Per. No. NC00 Nondisc. Per. No.W00WIC4 Health Dept.Per No. _
Rated by: 1�- &'j „ _ ....,_—Telephone:OAD 733 Date:�?_JCly /y
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telephone:
Check Classification(s): Subsurface Spray Irrigation Land Application
Wastewater Classification: (Circle One) 1 II Ill IV Total Points:
IN�NT PROCESSES AND RESTED CONTROL EQUIPMENT WHICH ARE AN INTEGRAL PART OF INDUSTRIAL PRODUCTION SHALL
NOT BE CONS ID E RED WASTE TREATMENT FOR THE PURPOSE OF CLASSIFICATION.ALSO SEMQTANK SYSTEMS CONS;STING
ONLY OF SEPTIC 1SUE AND QBLA LUTRIFICATION LINES ARE EXEMPT FROM CLASSIFICATIOn
SUBSURFACE CLASSIFICATION
(check all units that apply)
1, septic tanks
2. pump tanks
3, siphon or pump -dosing systems
4— sand fillers
5. grease irapfinterceplor
6. oil/waler separalors
7. _gravity subsurface treatment and disposal:
9. pressure subsurface treatment and disposal:
SPRAY IRRIGATION CLASSIFICATION
(check all units that apply)
1.
preliminary treatment (definition no. 32 )
2.
lagoons
3,
septic tanks
4.
pump tanks
5,
pumps
6.
sand filters
7.
grease IrapTnlerceptor
8.
oillwaler separators
9.
disinfection
10.
chemical addition for nutrient/algae control
11.
spray irrigation of wastewater
In addition 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 CLASSIFICATION (Applies only to permit holder)
1_ Land app)icalion of biosoads, residuals or contaminated soils on a designated site.
-------------------------..-------------------..-.--------------------
WAST EWAT ER TREATMENT FACILITY CLASSI FICATION
The following systems shall be assigned a Class I classification, unless the flow is of a significant quantity or the technology is
unusually complex, to require consideration by the Commission on a case -by -case basis: (Check if Appropriale)
1. Qil/water Separator Systems consisting only of physical separation, pumps and disposal;
2, Septic Tank/Sand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand fillers, disinfection
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical
treatment for algae or nutrient control, and direct discharge;
4. Closed -loop Recycle Systems;
5. Groundwater Remediation Systems consisting only of pumps, air -stripping, carbon adsorption, disinfection and
disposal;
6. Aquaculture operations with discharge to surface waters;
7. water Plant sludge handling and back -wash water lrealmer%
8. Seafood processing consisting of screening and disposal.
S. Single-family discharging systems, v:i;h the exception of Aerobic Treatment Units, will be classified it permitted
alter July 1, 1993 or if upon inspection by the Division, it is found that the system is not being adequately operated
or maintained. Such systems will be notified of the classification or reclassilication by the Commission, in writing.

The following scale is used for rating wastewater 1*:eatment facilities: (circle appropriate
points) r
ITEM POINTS
( 1) Industrial
Pretrealment Units or Industrial Pretreatment Program (see definition No, 33)...................................................4
(2) DESIGN FLOW OF PLANT IN gpd [not applicable to non -contaminated cooling wafers, sludge handling
facilities for water purification plants, totally closed cycle systems(see definition No. 11). and facilities
consisting only of Item (4)(d) or Items (4)(d) and (11)(d)j
0 - 20,000...............................................................................................................................................1
20,001 50,000 ......................................................................................................................................2
50.001 100,00o.....................................................................................................................................3
100.001 250.000...................................................................................................................................4
250,001 - 500,000...................................................................................................................................5
500,001 - 1,000,000..........................................,.....................................................................................8
11000,001 - 2,000,000...........................................................................................................................10
2,000.001 (and up) rate 1 point additional for each 200.000 gpd capacity up to a
maximumof........................................................................30
Design Flow (gpd)
(3) PRELIMINARY UNFTS+PROCESSES (sea definition No.32)
(a)
Bar Screens..................................................................,.............................................................1
or
(b)
Mechanical Screens, Stal€c Screens or Comminuting Devices..........................................................................2
(c)
Grit Removal..............................................................................................................................................I
or
(d)
Mechanical orAeraied Grit Removal.........................................................................................................,...2
(a)
Flow Measuring Device................................................................................................................................1
or
(f)
Instrumented Flow Measurement.................................................................................................................2
MPreaeration
................................. ........................................................................................ ....................... 2
(h)
Influent Flow Equalization ................................. .................................................................................... ... 2
(I)
Grease or Oil Separators - Gravity.................................................................................................................2
Mechanical ............................ .............................................._.......,..........._.._._.............................. 3
DissolvedAir Flotation ..................... ............ ........................................................................................ .......a
())
Prechlorination.........................................................................................................................................b
(4) PRIMARY TREATMENT UNiTSIPROCESSES
(a)
Septic Tank (see definition No. 43)..................................................................................... :......................2
(b)
Imholi Tank................................................................................................_..,........................................,..5
(c)
Primary Clarifiers.,:.,., ....................... _ ......................... ............................................................................... 6
(d)
Setiling Ponds or Settling Tanks for Inorganic Non -toxic Materials (sludge handling facilities for
water pudlicalion plants, sand, gravel, stone, and other mining operations except recreational
activities such as gem or gold mining)........................................................................................................2
(5) SECONDARYTREATMENT t1NRSrPROCESSES
(a)
Carbonaceous Stage
(i} Aeration -High Purity Oxygen System...............................................................................20
DiffusedAir System.......................................................................................................10
Mechanical Air System (fixed, lfoating or rotor) ....................................................... „......... 8
SeparateSludge Reaeration.............................................................................................3
Trickling Filler
HighRate.....................................................................................................................:.7
Standard Rate................................................................................................................5
PackedTower........................_......................................................................_._...............5
(lit) Biological Aerated Filter or Aerated
Biological Fitter .................................................... .........10
(Iv) Aerated Lagoons........................................................................................................1.10
(v) Rotating Biological ConlacRors......................................................................................10
(vi) Sand Filters -intermittent biological..................................................................................2
Recirculating biological......................._.......................................................................__._..3
(vii} Stabilization Lagoons .................. ................J5
(v€ii) V.Aier.............................................................. :.......... .................................................. 5
(ix) Single stage system for combined carbonaceous removal of SOD and nitrogenous
removal by nitrification (see definition No. 12)(Paints for this item have to be in
addition to items (5)(a)(i) through
utilizing the extended aeration process (see definition No.3a)...........................................2
utilizing other than the omended aeration process ............................................ ................ 8
(x} Nutrient additions to enhance BOO removal......................................................................5
(XI) Biological Cutlure ('Super Bugs')addition........................................................................5
(b)
Nitrogenous Stage
(€) Aeration - High Purity Oxygen System.............................................................................20
DiffusedAir System.......................................................................................................1 0
Mechanical Air System (fixed• floating or rotor,..................................................................8
Separate Sludge Reaeration.............................................................................................3
(ii) Trickling Filter -High Rate...................................................................................................7
StandardRate...............................................................................................................4
PackedTower.................................................................................................................5
(iii) Biological Aerated Filler or Aerated Biological Filter.............................................................1 0
(€v) Rotating Biological Con,lactors......................................................................................10
(v) Sand Filter - intermittent biological...................................................................................2
Recirculating biological.....................................................................................................3
(VI) C Aier................ .......... ................................................................................................. 5
(6) TERTIARY OR ADVANCED TREATMENT UNfTSIPROCESSES
(a)
Activated Carbon Bads -
withoul carbon regeneration...................................................................................................5
withcarbon regenoration.......................................................................................................1 5
(b)
Powdered or Granular Activated Carbon Feed -
without canton regeneration..................................................................................................5
with carbon regeneration...........................................................................I..."I...................15
(c)
Air stripping..............................................................................................................................................5
(d)
Denitrfiication Process..............................................................................................................................10
(a)
Elecirodialysis............................................................................................................................................5
(1)
Foam Separation...... ............................................................... ; ..... ........ ................................................. 1.5

gravel, atone and other similar mining operations) by high rate Infillration......................................................4
(1)
Microscreens.............................................................................................................................................5
(j)
Phosphorous Removal by Biological Processes (See definitlon No. 26)............................. ........................20
(k)
Polishing Ponds - without aeration................................-....--.....................................................................2
with aeration.............................................................5
(1)
Post Aeration - cascade ............................. ---0
diffused or mechanical............................................................................................2
(m)
Reverse Osmosis ........................................... :.................................................. .......................................... 5
(n)
Sand or Mixed -Media Filters - low rate.........................................................................................................2
highrase......................................................................5
(0)
Treatment processes for removal of metal at cyanide...................................................................................1 5
(p)
treatment processes for removal of toxic materials other than metal of cianida..............................................15
(7)
SLUDGE TREATMEM
(a)
Sludge Digestion Tank • Healed (anaerobic)...............................................................................................10
Aerobic......... ............................................................... .... ............... ................................ I ... I ............. .5
Unhealed(anaerobic)................................................................................................................................3
(b)
Sludge Stabilization (chemical or thermal)...................................................................................................5
(c)
Sludge Drying Beds - Gravity......................................................................................................................2
Vacuum Assisted......................................................................-...--......::...............5
(d)
Sludge Elulriation.........................................................................................-...........................................5
(e)
Sludge Conditioner (chemical or thermal).....................................................................................................5
(1)
Sludge Thickener (gravity)..........................................................................................................................6
(g}
Dissolved Air Flotation Unit (not applicable to a unit rated as(3)(1)).............................................................a
(h)
Sludge Gas Utilization (including gas storage).............................................................................................2
(I)
Sludge Holding Tank - Aerated.................................................-....--................................................-..........5
Nor-aerated.............................................................................................................................................2
(J}
Sludge Incinerator (not Including activated carbon regeneration)................................................................10
(k)
Vacuum Filter, Centrifuge, or Filter Press or other similar dewatering devices...................................................1 0
(8)
RESIDUALS
UTILIZATION/DISPOSAL (including incinerated ash)
(a)
Lagoons ......................... ................. .................................................................................................--....2
.
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landllll operator who holds the land
application permit or landlili permit...............................................................................................................2
{c)
Dedicated Landfill(burial) by the permittee of the wastewater treatment facility..............................................5
(9)
DG NNFECT1CN
(a)
Chlorination..............................................................................................................................................5
(b)
Dechlorination..............................................-.............-.................-..............--............................5
(c)
Ozone......................................................-...............................................................................................5
(d)
Radiation.................................................................................................................................................5
(1 0)
CHEMICAL
ADDITION SYSTEM(S) ( see definition No. 9) (not applicable to chemical addi[io_ns rated as Item
(3)(j),
(5)(a)(xi), (6)(a), (6)(b), (7)(b), (7)(e), (9a), (9)(b) or (9)(c) 5 points each:
List.........
........................................................................ ........................................... I ...... ...5
....... ............................................................................................................................. Z
....................................................................................................................................5
.........................................................................................................................5
(1 1)
MISCELLANEOUS UNf751PPFOCESSES
(a)
Hulding Ponds, Holding Tanks or Settling Ponds for Organic or Taxlc Materials including wastes
from mining operations containing nitrogen or phosphorus compounds in amounts signilicantly
greater than is common for domestic wastewater.. .......... . ... . ...................................................................... 4
(b)
Eliluent Flow Equalization (not applicable to storage basins which are inherent In land application
syslems)..................................................................................................................................................
(c)
Stage Discharge (not applicable to storage basins Inherent In land application systems)..................................5
(d)
Pumps ................... .....................................-.............................................................................................3
(6)
Sland-By Power Supply.....................................................................................................................I.......3
(f }
Thermal Pollution Control Device.................................................................................................................3
TOTALPOINTS.................:........................................................
CLASSIFICATION
Class I ....................................... ....................................................................5-25 Points
ClassII.........................................................................................................26.50 Points
ClassIII........................................................................................................51-65 Points
Class IV .......................... ............................................................................. 66-up Points
-----------------------------------------------------
Facilities having a rating of one through lour points, inclusive, do not require a certified operator.
Facilities having an activated sludge process will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class III
.0004 DEFINITIONS
The iol3owing definitions shalt apply throughout this Subchap(w.
(1) Activated Carbon Beds. A physicallchemical method for reducing soluble organic material from wastewater elfiuent; The columntype beds used in this method will have
a Ilow Isla varying Irom two to eight gallons per minute per square loot and may be either upAow or downflow carbon beds. Carbon may or may not be regenerated on the
wastewater lrsatmanl plant site:
(2) Aerated Lagoons. A basin in which ali solids are maintained in suspension and by which biological oxidation or organic maller Is reduced through artificially acceleraled
transfer of oxygen on a flow•through basis;
(7) Aeration. A process of bringing about intimate contact between air or high purity oxygen in a liquid by spraying, agitation or diffusion;(3a) Extended Aeration. An
activated sludge process utilizing a minimum hydraulic detention time of Ill hours.
;a) AgricuiluraFly managed site. Any site on which a crop Is produced, managed. and harvested (Crop includes gasses, grains, trees, etc.);
5) Air Stripping- A process by which the ammonium ion is first convened to dssolvad arrvmon'sa (pH adjustment) with the ammonia than released to the atmosphere by
ahysicat means: or other sim:tar processes which remove petroleum products such as benzene, toruene, and xyiene;
;6) Car' Regeneration. The regeneration of exhausted carbon by fhe use of a lwnace to provide extremely high temperatures which volatilize and oxidize the absorbed
mpuri
'7) C: _eous Stage. A stage of wastewater treatment designed to achieve -secondary- elavent limits;
t1) Centriluge. A mechanical device in which centrifugal force is usod to separate solids from liquds or to separate liquids of different densities;
'9) Chemical Addlion systems- The add-tion of chemical(%) to wastewater at an applicwl Dn poirr( for purposes of improving solids removal, pH adjustment, alkalinity ccn! 01.
uc.; the capaWity 10 experiment with diilwent chonrcals and dilreranl application points to achieve a specific result will be Considered one system; the capability to add

chemical(s) to dual units will be rated as one system, capability to add a chemical at a dillerenb application points for different purposes wilt realt in the systems being
ralad as separate systems;
(to) Chemical Sludoe Conditioning. The addition of a chemical compound such as lima, ferric chloride, or a polymer to wel sludge to co0csce the mass prior to its
applicatian to a dewalering device;
(it) Gosed Cycle Syslems. Use of holding ponds or holding tanks for containment of wastewater containing Inorgaric, nontoxic materials from sand, gravel, crushed
stone or other similar operations. Such syslems shall carry a maximum of two points regardless of pumping lacilicos or any otter appurtenances;
(12) Combined Removal of Carbonacaau s 800 and Nitrogenous Removal by Nitrilicatiort- A single stage system required to achieve permit ofiluent limits on 80D and
ammonia nitrogen wilrlin the same biological reactor;
(13) Dechforination. The partal oc complete reduction of residual chlorine In a liquid by any chemical cr physical process;
(14) DeritriAcalion Process. The conversion of nitrale-nitrogen to nitrogen gas;
(15) Elecirodialysis. Process for removing Ionized salts from wafer through the use of Ion-selactive Ion -exchange membranes; '
(16) Filter Press. A process orsrated mechanically lor partially dewalering s!udga; -
(t7) Foam Separation, The plp vied frothing of wastewaler or wastewater effluent as a means of removing excesinve amouMs of defergard materials through the
introduction or air In the form of fine bubbles; also called loam fractionation;
(0) Grit Removat. The protest of removing grit and Other heavy mineral matter from wastewater;
(19) Iminon Tank. A deep two story waslerwalar tank consisting or an upper sedimentation chamber and a lower sludge digestion chamber.
(20) Insirumemcd Flow MeasuremenL A device which Indicates and records rate of 013w;
(21) ion Exchange. A chorrical process in which ions from two different molecules are exchanged;
(22) land appffcalion:
(a) Studga Disposal, A final sludge disposal method by which wet sludge may be applied to lard either by spraying on the surface or by subsurface Injection (i.e.,
chisot plow); (not applicabe for types of sludge described in (is) of this Rule);
(b) Treated Frfluer+L The process of spreylrg treated wastewater unto a tend area or other methods at application of Wastewater onto a tend era■ as a moans of fmat
disposal or treatment;
(23) Microscroen. A low speed, continuously beck -washed, rotating drum filler operating under gravity conditions as a polishing method for removing suspanded solids
from effluent;
(24) Nitrification Process. The biochemical conversion of unoxidized ritrogen (ammonia and ocgaric rilrogm) to oxidized nitrogen (usually nitrate);
(25) Nilrvgencus Stage. A separate stage of wastewater treatment designed lot the specil;c purpose of corerertfng ammonia ritrogen to nitrate nitrogen;
(26) Phosphate Removal, EiotogicaL The removal of phosphorus from wastewater by an oxiclarloxic process designed to enharsce luxury uptake of phosphorus by the
microorganisms;
(27) Pollk-'rig Pond. A holding pond following secondary treatment wi h sufficient detention time to allow smiting of finely suspended solids;
(28) Post Aeration. Aeration following conventcnal secondary roalmanl units to incraase altlusnt 0,0, or for any Other purpose;
(29) Post Aeration. (Cascade) A polishing method by wfich dissolved oxygen is added to the efnuent by a normecharical, gravity means of flowing down a series of
steps or works; 'The flow occurring across the steps or weirs moves In a fairly thin layer and the operation of the cascade requires no operator adyusiment: thus, zero
points are assigned even though this is an assontiat stop to mactdng the limits of the discharge permit;
(30) Powdered to Granular Activated Carbon Food. A biophysical carbon process that utilizes biological activity and organic absorption by using powdered or granular
activalod carbon; Virgin or regenerated carbon is load controlled into no system;
(31) Prmaeral on. A tarn constructed to provide aeration prior to primary trealnlen":
(32) Prolinilrhary Units. UM operations in the treatment process, such as screening and comminution, thhal prepare the liquor for subsequent major operations;
(33) Industrial Pretreatment.
(a) Pre-traa:nom Unit, Industries. The condlioring of a waste at Its source before discharge, to remove or to neutralize substances Injurious to sewers and treatment
processes or to eftact a partial reduction in load on the treatment process which Is operated by the same governing body as the wastewater treatment plant being
rated;
b) Pre-treatment Program, Industrial - must be a State or EPA required program to receive points on the rating sheet;
(34) Primary Garifiers. The first settling tanks through which wastewater Is passed in a treatment works for the purpose of removing settleable and suspended solids and
600 which is associated with the solids;
(35) Pumps. All inAuenl, effluent and in -plant pumps;
(36) Radiation. Disinfection or steriilzation process utilizing dsvices errtitting ultraviolet or gamma rays;
(37) Reverse Osmosis. A treatnent procass in which a heavy cantaminaled liquid is pressurized through a membrane forming nearly pure liquid tree from suspended solids;
(3E) Rotating Biological Contractors. A fixed biological growth process in which wastewater flows through tanks In which a series of partially submerged circular solaces
are rotated;
(39) Sand Fillers:
(a) Inlarmirert Biological. Fillration of effluent following septic tanks, lagoons, or some other treatment process in which IL-ther biodecampasNon Is expected to
produce desired ellluoms,, Hydraulic icadrig rates an theca litters are computed In gpolac and have a resulting low gpriVsl (less Ilan one);
b) Pecirctlaling biological - the same !ypa Of sand filler as defined in Subparagraph (39) (a) of this RL1e with the added capability to recycle alfluenl back through the
send Wier;
(40) Sand or Mixed -Media Filters. A polishing process by which effluent limits are achieved through a further reduction of suspended solids;
(a) lox rate -• T. ahity, hydraulically loaded lillor with loading rates In the one to three gpmisf range;
(b) high rase -- a pressum, hydrrufically loaded filter with loadirig rates in the live gprwsl range; At any rate, the reading rate will exceed throe gpmrsl;
(41) Secondary Clari5ers. A tar* which follows the biological unit at tfeatrnent plant and which has the purpose of removing sludges associated with to Nciogieal
troalmont units;
(42, Separate Studoa Reparation. A part of Via contact slabitizaEon process where the activated sludge is translarred to a tank and aerated before relurring it to the
contact basin;
(43) Ssptic Tank. A singlo-story settling tank In which serfed sludge is in contact with the wastewater flowing through the tank; shall not be applicable for septic lank
System-- serving single family rasldences having capacity of 2,000 gallons or less which discharge to a nitrification field;
(4-:) Sludge Digestion. The process by wich organic or volatile matter and sludge is gasified, liquefied, mineralized or converted into more stable organic matter through
no activity or living organisms, which includes aerated holding tanks;
(45) Sedge prying Beds. An area comprising natural or artificial layers of porous materials upon which digested sewage sludge is dried by drainage and evaporation;
(46) 5fudga Elunal;on. A process of sludge conditioring in which certain constituents are removed by successive washings with Iresh wafer or plant effluent;
(47) Sludge Gas Uliftation, The process or using sewage gas for the purpose Of heating buildings, driving engines, etc.;
(48) Sludge Holding Tank (Aerated and Nonaeraled). A tank utilized for small waslewaler treatment plants not containing a digester in Mich sludge may be kept fresh,
and su:pornatanl withdrawn prior to a drying method (i.e, sludge drying bads); This may be done by adding a smaE amount of air simply to keep the sludge Iresh, but not
necasswily an amount that would be required to achieve slabiilzalion of organic rnaher. A nonaaraled lank wood simply be used to decant sludge prior to dowalering and
would not allow long pori,ds (several days of detention) without resulting odor problems;
(49) cut-dcx trc;nerators, A krnace designed to bum sludge and to remove alil moisture and combu%libo materials and reduce the sludge to a sterile ash;
(50) Sludge Stabilization (Chemical or Th>omsei). A process to make treated sludge less odorous and putrescible, and to roducr t+e pathogenic orgarism content; This may
ba done by pH aqustment, chlorine dosing. or by heat treatment;
(51) Sludge Tlickmaer. A type of sedimenlation tank in which the sludge is permitted to settle and thicken through agitation and gravity;
(52) 5taNlizalion Lagoon. A type cl oxidation lagoon in which biological oxidation of orgaric matter is effected by natural transfer of oxygen to the water torn air (not a
polishing pe td):
(53) Slanxi-Ey Pewar Supply. On ilia or portable electrical generating equipment;
(64) Stack Seraphs, A stationary screen designed to remove solids, including non-biodegradabls parllarrate (noatable solids, suspended solids and BOD reduction) from
municipal and Industrial wastewater treatment systoms;
(55) Tertiary Tfeatmenl. A stage of treatment following secondary which Is primarily for the purpose of affluent potishi g-, A setting lagoon or sand or coal flier rsight be
,Pmpluyed tor this purpose;
(Sb) Thermal Pol4roon Conlrof Device, A device providing for the transfer of heat from a Auld flowing in tubes to another Tuid outside the tubes, or vice vars3; or other
means of rogUating liquid tamperatures;
(57) Ther-ral S!,Age Can3tioner. A canduioning process by which heat is added lot a protracted period of time to improve the dewatetability, of sludge by One solubilizing
and hydraurtizine of the smaller and more highly hydrated sludge panicles;
(58) Toxic Malerlals, Thnsa wastes or cornbiraiions of wastes. Including disaase-causing agents which after discharge and upon exposure, Ingestion, inhalation or
assimilation info any organism, eilhar directly from the envirarrnenl or indirectly by ingestion through food chains, will cause death, disease, behavioral abnormalities,
eancei, genetic mutations, physiological malfunctions (including rmaltunc6erts in reproduction) or physical daformaaons, in such organisms or their ollspring; Toxic materials
inciuda, by way of illustration and not [irritation: lead, cadmium, chromium, mercury, vana&um, arseric, zinc, ortre•rilro•chlerobenzono (ONCE), polychlorinaled biphenyls
(PCBs) and dichlorodiphonyl Irichlorosthano (DDT): and any other malerals that have of may hereafter be determined to have toxic properties;
(591 Trickiing Fdtar. A biological treatment unl consinmi; of a malarial such as broken stone or rock Over which waslewaler Ic distribuled: A high rule trickling tiller is ore
wNcn ope'atsd at bo.ween 10 and 30 mgd per acne. A'aw rate tickling filler is one which Is designed to operate a1 one to four rmgd per acre.
(b0) Trickling Filter (Packed Tcwor). A p;ug now type of operation in which wastewater flows down through successive layers of media or ri!trato material; Organic malarial
I' removed continually by the eetive biolo;+cal fixed growth in each successive layer, This mother, may produce 'secondary quality elnuenl, or may be adapted to
produce a NL''rliod affluent:
(611 Vacuum Filler, Centrifuges. or Fitter. Presses Devices which are designod to remove excess water from either digested or undigested sludge prior to disposal or
further Irealmorl.