HomeMy WebLinkAboutWQ0000506_Final Permit_19950131State 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 31, 1995
Mr. Wallace Woodall, President
Wallace Woodall Vacuum Pumping, Inc.
Post Office Box 5066
Cary, North Carolina 27512
4••
I DEHNF=1
Subject: Permit No. WQ0000506
Wallace Woodall Vacuum Pumping, Inc.
Land Application of Wastewater Residuals
Wake and Chatham Counties
Dear Mr. Woodall:
In accordance with your amendment request received October 26, 1994, we are`forwardina
herewith Permit No. WQ0000506 as amended, dated January 31, 1995, to Wallace Woodall Vacuum
Pumping, Inc. for the continued operation of a land application of sludge program. This permit is being
amended to allow the construction and operation of a 1,000,000 gallon lagoon which will be used for the
storage of wastewater residuals from Miles Laboratories, a 400,000 gallon lagoon which will be used for
the storage of domestic package system wastewater residuals when weather prohibits land application, and
a 300,000 gallon lagoon which will be used for the lime stabilization of- the wastewater residuals from
Miles Laboratories.
Please be advised, the stabilization requirements must be met prior to the land application of the
wastewater residuals. If the wastewater residuals are stabilized prior to going into the storage lagoons, the
residuals must be retested to verify that no pathogen regrowth has occurred or be restabilized.
In addition, upon a detailed site soil investigation by Mr. Karl Shaffer, the seasonal restrictions on
the Wallace Woodall sites, Site Nos. 801, 502, 803. and 804, has been removed. However, these sites
will still be restricted by Condition No. IV 4 which states, no land application of waste activities shall be
undertaken when the seasonal high water table is less than three feet below land surface.
This permit shall be effective from the date of issuance until September 30, 1997, shall void Permit
No. WQ0000506 issued November 9, 1994, 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.
P,O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper
If you need additional information concerning this matter, please contact Mr. Michael D. Allen at
(919) 733-5083.
Sincerely,
A. Prest Howard, Jr., P.E.
cc: Wake County Health Department
Chatham County Health Department
Agri -Waste Technology
Raleigh Regional Office, Water Quality Section
Raleigh Regional Office, Groundwater Section
Jack Floyd, Groundwater Section Central Office
Training and Certification Unit
Facilities Assessment Unit
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
Wallace Woodall Vacuum Pumping, Inc.
Wake and Chatham Counties
FOR THE
construction and operation of a 1,000,000 gallon lagoon which will be used for the storage of wastewater
residuals from Miles Laboratories, a 400,000 gallon lagoon which will be used for the storage of domestic
package system wastewater residuals when weather prohibits land application, and a 300,000 gallon
lagoon which will be used for the lime stabilization of the wastewater residuals from Miles Laboratories,
and the continued operation of a wastewater residuals land application program consisting of the
application of approximately 8,164,000 gallons per year of residuals from the facilities listed in Condition
No. 11 4, to approximately 440.78 acres of land in Wake and Chatham Counties with no discharge of
wastes to the surface waters, pursuant to the amendment request received on October 26, 1994, 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 September 30, 1997, shall void Permit
No. WQ0000506 issued November 9, 1994, and shall be subject to the following specified conditions and
limitations -
PERFORMANCE STANDARDS
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, the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
29535, Raleigh, NC 27626-0535.
2. The Raleigh Regional Office, telephone number (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 Raleigh Regional Office, telephone number (919) 571-4700, and the appropriate local
governmental official (county manager/city manager) shall be notified at least twenty-four
(24) hours prior to the initial application of the residuals to a site so that an inspection can
be made of the application sites and application method. Such notification to the regional
supervisor shall be made during the normal office hours from 8:04 a.m. until 5:00 p.m. on
Monday through Friday, excluding State Holidays. In addition, the Chatham and/or Wake
County Manager's office must be notified prior to the initial application so that they will be
aware that the operation has commenced.
4. 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.
5. 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.
6. 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 program.
7. In the event that the land application program is not operated satisfactorily, including the
creation of nuisance conditions, the Permitte&'§hall cease applying residuals to the sites and
take any immediate corrective actions as may be required by the Division.
8. Some of the buffers specified below may not have been included in previous permits for
this land application operation. However, any sites or fields that are included in this
permit, but were approved with different applicable buffers shall be reflagged to comply
with the below. buffers. The following buffer zones shall be maintained:
a) 400 feet from residences or places of public assembly under separate ownership for
surface application method; however, the buffer zone requirement may be reduced to a
minimum of 100 feet upon written consent of the owner and approval from the
appropriate DEM regional office,
b) 200 feet from residences or places of public assembly under separate ownership for
subsurface residual injection method; however, the buffer zone requirement may be
reduced to a minimum of 100 feet upon written consent of the owner and the
appropriate DEM regional office,
c) 100 feet from any public or private water supply source, waters classified as SA or SB,
and any Class I or Class II impounded reservoir used as a source of drinking water for
both methods,
d) 100 feet from any streams classified as WS or B, any other stream, canal, marsh or
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 or
coastal waters and any other lake or impoundment for subsurface application,
f) 100 feet from property lines for both surface and subsurface application methods;
g) 50 feet from public right of ways for both application methods,
h) 10 feet from upslope interceptor drains and surface water diversions for both
application methods,
i) 25 feet from downslope interceptor drains, surface water diversions, groundwater
drainage systems and surface drainage ditches for both application methods.
9. A copy of this permit shall be maintained at the land application site when residuals are
being applied during the life of this permit. A spill prevention and control plan shall be
maintained in all residuals transport and application vehicles.
10. Specific residual application area boundaries shall be clearly marked on each site prior to
and during application.
2
II.
11. No residuals at any time shall be stored at any application site except for the wastewater
residuals from Miles Laboratories in the 1,000,000 gallon lagoon and the domestic package
system wastewater residuals in the 400,000 gallon lagoon, unless approval has been
requested and obtained from the Division of Environmental Management.
12. Maximum slope for residual application shall be 10% for surface application and 18% for
subsurface applications.
13. When wastewater residuals are applied, the Class A pathogen requirements and site
restrictions in 40 CFR Part 503.32(a) or 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 must be met. Additionally, an evaluation must be performed which
demonstrates the residuals ability to comply with this requirement. Upon request, a copy
of this evaluation must be submitted including all test results and calculations.
Please be advised, the stabilization requirements must be met prior to the land application of
the wastewater residuals. If the wastewater residuals are stabilized prior to going into the
storage lagoons, the residuals must be retested to verify that no pathogen regrowth has
occurred or be restabilized.
OPERATION AND MAINTENANCE _REQUIREMENTS
1. The facilities and application sites shall be properly maintained and operated at all times.
2. A suitable vegetative cover, as listed in condition II 4, 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 (lb./acre/`Yr.)
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
200
Timothy, Orchard, & Rye Grass
200
3
5. No sludges other than the following are hereby approved for land application in accordance
with this permit:
Estimated Volume Required
Source County (gallonslyear)Acreage (acres)
1.
Town of Wendell
Wake
300,000
8.71
2.
Town of Pittsboro
Chatham
208,000
28.52
WWTP and WTPb
3.
Cole Park Plaza WWTP
Chatham
48,000
0.35
4.
Five Oaks Subdivision WWTP
Durham
125,000
2.71
5.
Nature Trails MHP as
Chatham
32,000
1.23
6.
Hudson Hills Subdivision
Chatham
4,000
0.24
7.
Country Lake Estates
Wake
12,000
0.04
8.
Town of Morrisville -
Perimeter Park WWTP as
Wake
25,000
0.12
9.
Town of Morrisville -
Aviation Pkwy. WWTP as
Wake
25,000
0.11
10.
Lake Royale Resort as
Franklin
4,000
0.08
11.
Days Inn WWTP as
Durham
8,000
0.06
12.
Cedar Village Apartments
Chatham
8,000
0.42
13.
Carolina Meadows
Chatham
24,000
0.76
14.
Pope Industrial Park
Wake
12,000
0.17
15.
Plantation Inn WWTP
Wake
18,000
3.90
16.
River Mills Subdivision
Wake
36,000
1.40
17.
Carolina Trace Subdivision
Lee
30,000
0.61
18.
Bristol Myers Inc.
Wake
40,000
0.25
19.
Tradewinds Subdivision
Wake
25,000
0.78
20.
Riverwalk Subdivision
Wake
40,000
0.23
21.
Wildwood Green Subdivision
Wake
1,000
0.01
22.
Hawthorne Subdivision
Wake
50,000
0.79
23.
Beachwood Subdivision
Wake
10,000
0.27
24.
Indian Creek Subdivision
Wake
12,000
0.23
25,
Cottonwood Subdivision
Wake
20,000
1.10
26.
Deerchase Subdivision
Wake
5,000
0.15
27.
Mill Run Subdivision
Wake
30,000
0.74
28.
Wake Technical College
Wake
25,000
0.19
29.
Briarwood Farms Subdivision
Wake
20,000
0.40
30,
Mallards Crossing Subdivision
Wake
25,000
0.28
31.
Kings Grant Subdivision
Wake
12,000
0.13
32.
Ashley Hills Subdivision
Wake
20,000
0.20
33.
Willowbrook Subdivision
Wake
12,000
0.27
34.
White Oak Subdivision
Wake
8,000
0.13
35.
Riverview
Wake
82,000
1.39
36.
Town of Holly Springs
Wake
20,000
0.37
37.
Shearon Harris WWTP
Wake
20,000
0.73
38.
Creekside MHP as
Wake
9,000
0.15
39.
Forty Niners Club
Wake
6,000
0.09
40.
Countryside MHP
Plant A as
Wake
9,000
0.04
41.
Countryside MHP
Plant B as
Wake
9,000
0.02
42_
Whippoorwill Valley
Wake
5,000
0.30
43,
Barclay Downs $
Wake
100,000
1.94
44.
Town of Clayton
Johnston
50,000
0.48
45.
Cross Creek Subdivision a
Wake
20,000
0.31
46.
Knightdale Estates Subdivision
Wake
12,000
0.72
4
11
Estimated Volume Required
Source County l n l ar Acre cr
47.
Trails Subdivision a
Wake
12,000
0.28
48,
Amherst Subdivision
Wake
4,000
0.02
49.
East Wake High School
Wake
12,000
0.52
50.
Gaylord
Wake
16,000
0.07
51.
Town of Enfield
Halifax
140,000
13.31
52.
River Landing
Wake
12,000
0.11
53,
River Bend, Lakeside
Wake
12,000
0.07
54.
Neuse Crossing
Wake
12,000
0.11
55.
Fuquay Varina WWTPc
Wake
900,000
28.18
56,
Miles, Inc. WWTPa
Johnston
5,200,000
36.65
TOTALS
8,164,000
143.16
Denotes sludges that shall be applied to lands which are to be covered with grass or
corn crops ONLY, otherwise additional acreage will be necessary to accommodate
other cover crops.
as Denotes sludges that shall be applied to lands which are to be covered with coastal
bermuda grass ONLY, otherwise additibnal acreage will be necessary to accommodate
other cover crops.
b The alum sludge from the Pittsboro WTP shall be mixed with domestic sludge at a ratio
between 1:5 and 1:10, alum sludge:domestic sludge. A pH between 6.0 and 7.5 shall
be maintained on the fields which receive the alum/domestc sludge mixture. A 10.5
acre tract shall be identified which will receive the alum sludge.
To meet the vector attraction requirement, this residual must be injected unless
documentation can be provided that supports another alternative.
d A specific area of land (minimum of 36.65 acres) will be dedicated to receive
wastewater residuals from Miles, Inc. WWTP.
The metal loading rates shall not exceed the following Cumulative Pollutant loading rates:
Kilograms Pounds
Parameters Der Hectare Der 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
5
7. The pollutant concentrations in the residuals which will be applied to the land shall not
exceed the following Ceiling Concentrations (Dry Weight Basis):
Parameters mglkg
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 112 -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 land 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.
R
18. Food crops, feed crops and fiber crops that don t 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 pans 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.
23. Freeboard in the wastewater residual lagoons shall not be less than two (2) feet at any time.
24. No wastewater residuals shall remain in the lagoons for a period greater than two (2) years.
If residuals remain in the lagoons for longer than two (2) years without being land applied,
this facility shall then'be considered "surface disposal" as established in 40 CFR Part 503
and the appropriate permit for "surface disposal" must be obtained from the Division.
III. MNITORING AND REPORTING REQUIREMENTS
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 and
kept on file for a minimum of five years. These records shall include, but are not
necessarily limited to the following information:
a) source of residuals
b) date of residual application
e) 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.
j) source, date, indication as to whether or not the residuals were stabilized prior to going
into the lagoons, and the quantity of wastewater residuals placed in the two storage
lagoons (1,000,000 gallon and 400,000 gallon) and the proper identification of the
receiving wastewater residual lagoon
k) date, indication as to whether or not the residuals were stabilized or retested for
pathogen reduction, and the quantity of wastewater residuals removed from the two
storage lagoons (1,000,000 gallon and 400,000 gallon) and the proper identification of
the wastewater residual lagoon
7
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
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 lead Nickel
Cadmium Mercury Selenium
Chromium Molybdenum
4. A�residuals analysis will be conducted annually on each residual listed in Condition H 4,
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
5. A Toxicity Characteristics Leaching Procedure (TCLP) analysis shall be conducted by the
Permittee annually on the following residuals:
Town of Fuquay Varina
Town of Wendell
Town of Clayton
Miles, Inc.
The TCLP analysis shall include the following parameters (please note the regulatory level
in mg/L in parentheses):
Arsenic (5.0)
Barium (100.0)
Benzene (0.5)
Cadmium (1.0)
Carbon tetrachloride (0.5)
Chlordane (0.03)
Chlorobenzene (100.0)
Chloroform (6.0)
Chromium (5.0)
o -Cresol (200.0)
m -Cresol (200.0)
p -Cresol (200.0)
Cresol (200.0)
1,4 -Dichlorobenzene (7.5)
1, 1 -Dichloroethylenc (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)
2,4,5 -TP (Silvex) (1.0)
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 (2.0)
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 113 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(x) or with the Class B pathogen requirements and site restrictions in 40 CFR Part
503.32(b) and'the 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.
7. Three copies of all required monitoring and reporting requirements as specified in
conditions 1111, 111 2, 1113, 1114, III 5 and 1116 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
Noncompliance Notification:
The Permittee shall report by telephone to the Raleigh Regional Office, telephone number
(919) 571-4700, as soon as possible, but in no case more than 24 hours or on the next
working day following the occurrence or first knowledge of the occurrence of any of the
following:
a. Any occurrence 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
L1
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.
IV. GROUNDWATER REQUIREMENTS
1, The interior surfaces of the lagoon shall be completely lined with a 30 -mil (minimum) thick
liner. Following installation and inspection of the lagoon liner, and prior to waste disposal
operations, certification of the liner's compliance with approved construction specifications
and the liner's integrity must be provided to the Division of Environmental Management,
Groundwater Section, by the project engineer.
2. The three (3) existing monitoring wells, MW -1, MW -2 and MW -3 located at the Charles
B ouldin site in Chatham County (as depicted on Attachment A) shall be sampled every
February, lune and October for the following parameters:
NOs SO4
NO2 pH
Total Ammonia TOC
Total Dissolved Solids Lead
Fecal Coliforms Total Suspended Solids
Cadmium Chloride
Water Level
Volatile Organic Compounds - In October only (by Method 1 or Method 2 below)
Method 1: Method 6230D (Capillary - Column), "Standard Methods for the Examination
of Water and Wastewater", 17th edition, 1989
Method 2: Method 502.2 "Methods for the Determination of Organic Compounds in
Drinking Water", United States Environmental Protection Agency - 600/4-
88/039.
The measurement of water level must be made prior to sampling for the remaining
parameters. The depth of water in each well shall be measured from the surveyed point on
the top of the casing.
The measuring points (top of well casing) of all monitoring wells shall be surveyed to
provide relative elevations of the measuring point for each monitoring well.
If TQC concentrations greater than 10 mg/1 are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TOC concentration. If the TOC concentration as measured in
the k r nd monitor well exceeds 10 mg/l, this concentration will be taken to represent
the naturally occurring TOC concentration. Any exceedances of this naturally occurring
TOC concentration in the downgradient wells shall be subject to the additional sampling
and analysis as described above.
If any volatile organic compounds are detected by method 6230D, or the equivalent method
502.2, then EPA methods 604 and 611 must also be run to detect other organic compounds
which may be present. The results of all analysis specified in the monitoring requirements,
including 604 and 611 if required, must be submitted simultaneously.
10
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management P. a. Box 29535 Raleigh, N.C. 27626-0535 on Form GW -59
(Compliance Monitoring Report Form) every March, July and November.
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.
4. Any groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
5. No land application of waste activities shall be undertaken when the seasonal high water
table is lest than three feet below land surface.
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 leachate.
VI. GENERAL CONDITIONS
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.
11
ki
The following are approved sites for residuals application (see attached map[s]):
Application Area [acres]
OwnerlLessee Site No. County (excludingfbu fern
Charles Bouldin 1
Chatham
5.5
2
Chatham
18.9
3
Chatham
5.9
6
Chatham
3.7
7
Chatham
2.9
8
Chatham
3.0
9
Chatham
10.0
10
Chatham
5.9
11
Chatham
9.7
12
Chatham
1.9
13
Chatham
4.2
14
Chatham
5.2
15
Chatham
22.3
16
Chatham
7.3
17
Chatham
17.6
18
Chatham
1.2
19
Chatham
3.8
21
Chatham
4.9
22
Chatham
2.6
23
Chatham
7.4
24
Chatham
2.2
25
Chatham
6.8
Berney Griffies 200
Chatham
5.3
201
Chatham
3.8
202
Chatham
13.7
203
Chatham
8.7
M.A. Perry
Bobby Murray
Wallace Woodall e
601a Chatham
65.0
701c
Wake
6.52
702b, c
Wake
9.0
703b, c
Wake
4.46
704b, c
Wake
12.6
706c
Wake
1.8
801d
Chatham
51.7
8024
Chatham
51.3
8034
Chatham
34.0
8044
Chatham
20.0
Total Acreage
440.78
a Please be advised that the land lying south of the unnamed tributary to Shaddox Creek
(approximately 33.0 acres) is unsuitable for the land application of sludge due to
floodplain, slope, and soil concerns; therefore, only 55.0 acres of the originally
requested 98.0 acres is suitable for the land application of sludge.
b The cross -hatched areas of these fields shown on the attached map shall not be used for
sludge application due to shallow depth to bedrock (<12 inches) and sandy soils.
12
The fields that are not cross -hatched shall be limited to sludge application only during
the months of April through October, inclusive.
d Sludges may not be applied to the areas of these fields that have soils designated as
"1C" and "4" due to streams, shallow soils, steep slopes, and shallow depth to
bedrock.
e 'Mese fields have been calculated using 50 feet to property lines. All other fields are
based on 100 feet to property lines.
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. This permit shall become voidable unless the agreements between the Permittee and the
landowners/lessees are in full force and effect. The land owner agreements are considered
expired concurrent with the expiration date of the permit and must be renewed at the same
time the permit is renewed.
Permit issued this the thirty-first day of January, 1995
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston H4vard, Jr., P.E.,)Director
Division of E ironmental Management
By Authority of the Environmental Managemnt Commission
Permit No. WQ0000506
13
Permit No. WQ0000506
January 31, 1995
•
T, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project,
Project Name
Location
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 this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
14
Registration No.
'94 10:09AN P.3.4
�jl 1
Its
irn
MERRY OAKS, N. C. (; } `r = �.A;1z
U
1 (FORMCI;LY NEW HOPE DAM)
N3537.5—W7900/7,5 ;.
. � ��`t 1 1969 \ `� �✓ `— �� � V f
PHOTOREVISE13 1981 `� f
% _ -bm d `
AMA 5155 11 NE-82R1E5 V842/ ! , N �'' I \ % 1/ ten- I go"
. I � j-••` \� % {�-...rill')/ d i1✓� !'. "� ~�� 1 .�Q ^-. /\ l i �l
ter- t SI `� J !r/} f I`r � ✓�•
666 � I
X11.
TD i
:�._ sem'.• ,
14
Tract 2
MAORANGLE LOCATION
C) MONCURE, N. C. j
✓. rvY:g -,' c r �-- ` N3530 --W7900/715
1970 t`
OREVISED 1981 QT
�..
OMA 5155 13 SE --SERIFS V847 \ �
Map 2. Topographical Map of Site W9
SCALE 1; 24 WO t�
Z Y 0
[MILE
. i
1D00 0 1000 2000 3000 40p0 5000 60W 7000 FEET
1 KILOMETER
r0t>ITniik1 INTi7RVA1 T!1 FFFT
•r'4 14f 1 i� c Y 4
i
` I
J�
L ✓ � i
� fI} 11 ll C
U/ � ] � p
Lr
E \
• is
IC
n
l E G F N
v LCn /�• r �V d-�il. it
�_..�.-.--- InC.rn�t CS •nt Y�Y�C-Tv rKsv D^c��y ! '1" ` �4 iN / �� �`-9' Oi.
NlgnV.Y I . 1
u,fC-09
Houk. or :uitding
o
cr..ury i 1
W4.01 Lin.
4C
I � I
I.rrcv •r.. 1 1 1
• Ceod.d SDi Approx . Scale
610,
Map 5 - Soils Map of Field 804
to include buffer's
LEtgoon SILe Location
Wallace Woodall l� field 802
116
® ® I
r-
® 1 I
field 801
i }
! 'S
------------------
GRAPHIC SCALL
]]0 0 03 J30 Geo 1.270
;H FEE7
1 inch = Soo !t
r -----------------------------i
1
1 � 4
i G
I � I
I Lentl PrerlanalY dealtnel•d I
! e dlcolal enmpeelbiA I
.Il. ..d kll oLnn .nol• 1 1
. nppllcntlan dl•, I
U- ,•11
lot olhnr .t
{� •Prll•-Roo of —14-1, t
I
I �
I 1 �
� 1
- - Rudd
----
Proper -Ly bine
---- l-airld Oordcr
- Drainage way
® Residoi>re
o Well
illaS s:
Lagoon SiLe Location _
Title z:
Field 802 - Lagoon Site _
Location: Unit.: $rnlr
Chatham C luetielal i
Co.,I an ]— -�_- !-
UPnarn by; T
AV"Agri—Weate Technology, !na y
35oA Sloan Court Eheck.:d by: 1'
Ura -Ing Ilurnhrl;
WW-S1a
0- 5 1LU
-.------- -.- - -- .- .
,PING SCALE - FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
�
Name of Facility: A :rQ 6J�,aL ICgr 0�C�Z
Owner or Contact Pers
Mailing Address:9-C V Alf -
County. Telepho e: D
Present Classification: &. New Facility Eyisting FacilitVVy
-NPDES Per, a. N90,P_Nondisc. Per. ND.WQ Health Dept.Per No.
Rated by: _ �`� _ Telephone: 521-1200 Dale:19V-11/l/
Reviewed by: Health Dept. Te:sphone:
Regional Office Te'aphone:
Central Office Te°ephone.
ORC: Grade: TE:epha
Check Classification(s): Subsu e Spray IrrigationLand Application
Wastewater Classification: (CircleOne 1 fl III IV Total Points: Is
It�LFLA,NT PRQQFS.SFS ANf) RFI ATFD QXWTRO ECA JIPMELE WNK�H ARF AN IdjE: FkAj PART OF INDI �iAL PROD_ L� i� I l TRF
QD�LSIPEREQWASIETRELT—MENIFOR TPE PURPOSE OF 1FY_'ATlCNP 7 YS Y 1 YOFS TABIC
AND GRAVITY NITRIFCAMON LINF,S ARE_Q�EMPT FROM Ql ASSEOATKx7
SUBSURFACE CLASS! FICATK]N
(check all units that apply)
1. seplic tanks
2. pump tanks
3. siphon or pump -dosing systems
4. sand filters
5. grease trapfinfercepior
6, oil/waler separators
7. gravity subsurface teealmenl and disposal:
8, pressure subsurface treatment and disposal-,
-----------------
SPRAY IRRIGAT)ON CLASSJfiCATY.'td
(check all unils that apply)
1.
preliminary Irealmeni (dsfWtion no. 32 }
2.
lagoons
3.
septic tanks
4,
pump tanks
5.
pumps
6.
sand fillers
7.
grease trap(nlerceplo(
8,
oil/waler separators
9.
disinfection
14.
chemical addition for nutrient/algae conical
11.
spray irrigation of wastewater
In addition to the above —classifications, pretreatment of wastewater In excess of these components .shal
be rated usin the point rating system and will require an operator with an appropriate dual certification
LAND APP ATIOMIRESIDUALS CLASSIFICATION (Applies only to permit hofder)
i. and application of biosolids, residuals or contaminated soils on a designated site.
WASTEWA TER TREATMENT FACILITY CLASSIFICAT)ON
The following systems shall be assigned a Class I classilicalion, lirila&5 the flow is of a sign;licant q,=_nlily or the technc __9y is unusually
complex, to require consideration by the Commission on a case-by-case basis: (Check if Appropriai.)
i. Oil/waler 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, 4jisinfsz6on
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical I:eztmenl [or
algae or nutrient control, and direct discharge;
4. Closed-loop Recycle Systems;
5, Groundwater Remediation Systems consisting only of oillwaler separators, pumps, air -stripping, carbon adscrpliDn, disinfection
and dispo s. -J;
6. Aquaculture operations with discharge to surface waters;
7. Wa!er Plant sludge handling and back -wash water treatment;
S. Seafood processing consisting of screening and disposal -
9. Single-family discharging systems, with lite exception of Aerobic Treatment Units, will be classified t! permiila-i aaer July t,
1493 or if upon inspection by the Division, it is found that the system is not baing adequately operaled or maintained. Sudi
systems will be notified of the classification or reclassification by the Commission, in wrii'ng..
............................................................................................-...
Class11.........................................................................................................26.50 Points
CtassIV............................................ ............................................................ 51-65 Points
C.iasz N ..... ............................................. ...................... :...... ........................ 6s -Up Points
Faciiiiiss having a rating of one Through four points. Inclusive, do no; require a certilled operator.
Facilities having an activated sludge process Will be assigned a minimum classification of Class It.
Facilities having treatment processes for the rBmoval of metal or cyan::;- will be assigned a minimum classification of Class R.
Facdiiies having Imatmarrl procosses for the biological removal of phosphorus will be assigned a rnlnimum tlass rasion of Class 111.
-------------------------------------------------------------
.0004 DERNFIQNS
The lotiowing definitions shall apply throughout Ihls Subchapler.
(1) ACivatad Carbon Beds. A physicavchomical rne!rrsd for reducirc soluble organic material from wasiewa:er effluent; The column -type beds used in INS
mathad call[ have a flow rate varying from two to eight gallons per r..'-nute per square fool and may be either vpflow or downflow carbon beds. Carbon mai' :
may not be reganera[ed an the wastewater treatment plant site;
(2) Aerated Lagoons. A basin in which all solids vs maintained in suspension and by which biological oxida:un or organic mater is reduced through aaiiici�
acce�arled transfer of oxygen or a flow•1hrough basis;
(3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen in a liquid by spraying, agnalion or diffusion:(�a) Ex;endcd
Aarmion- An activated sludge process utilizing a rnarnum hydraulic detention time of 16 hours.
(4) AQ -'i Rurally managed site. Any site on which a crop is produciu,, managed, and harvested (Crop includes grasses, grains, IreeS, e(c.);
(5) Ai-, Stripping. A process by which the ammoniun ion is first converted to dissolved ammonia (pH adjusirzent) with the ammonia then ralaased lc 1h9
aims ,bene by physical means; or other similar processes which rerncve petroleum products such as benzene, toluene, and xylerva;
(6) cZ-bon RBganeratlon_ The regerlerallon of exhausted carbon by the use of a lunate to provide extreme.; high temperdures which volati.Ze and oxidize
abso.�_-d impuri',ies;
(7) Cz.•bonaceo s Stage. A stage of wastewater irealmen[ designed to ichieve ,'secondary' efts lent limits;
(E) Ca-xrduge. A mechanical device in which centrifugal force is used to separate solids from liquids or to separale liquids of dilloron: d`3nsk'Os;
(9) Clxracal A.ddtifon Sysloms- The addition of the^lcal(s) to waste•vrater at an application print for purposfs of Improving solids removal, pH adjustment.
all-a!'r4 conlroL etc.; the capability to ezperimanl with different chemicals and crdlorent applicalion points to a_hieve a Specific result will bo considemd one
sys:e.-_� the cacability to add chemical(s) to dual units vrill be rated as orv- system; capability to add a chemic;[ at a different application points for dit18mill
pure -*s %,% res.A in the sysloms being rated as separate systens;
(16) Cwiriical Stage Conditioning. Tho addition of a chemical compound such as ilme, lotric chloride, or a iriyner to wet sludge to coalesce IFa mass pr'sor
its i'>,7-.7.!tion 10 a dewatering dovice;
(15) &&_sed Cyda Systems. Uso ul holding ponds or holding tanks for contalnmont of wastex•alar conraining inorganic, cion -toxic materials Irom sznd,
cr,:.Rd stone or otFar zimilar operations. Such systens shall carry : maximum of Ivro points regardless of purnping facilitias or any other appurtonarces;
(17) Ccr..anad R-1—al of Carboracaous 500 and Nitrogenous Rcroval by Nitrification. A sirr„ta stago systo m roouired to achisvo permit ati[uont [i its on 134'
and a=,i,-*a:ia &-oven within the same biological reac or,
aorra-src The parrial or complcto roduCior: of tosidual Oko re in a liquid by any chorcal or pli"iczl process;
(tt) n2r,}�:iii Process. The conversion of niirare-nitrogen to dreogon gas;
................................... ................ ..............................
dMusod r r.)-chanlcat..............................................2
(m)
Reverse 0sr"OSIS............ " `-' ...............................5
(n)
Sand or Mixod-Modia Fiile:s - low rate ................. .." 2
...........................................................5
high rate_.' ....................................................................
(o)
for of l ld..1 5
Treatmant procossosor romometal or cyana......................
.
(p)
ireatmant processes for rornoval at toxic materials other than mola.l or cyanldo...............---.....15
(7)
SWMETREATMENC
(a)
Sludga 0€geslfon Tank - Healed (anaerobic) ................................... ........................................................... 10
Aerobic ....... .................................... ....................... .............................. ...5
.......................................
!
(-b)
Unheated(anaeroblc)...........................................................:...................................................................A
.-Sludge Stabilization (chemicalorthermal) ............... ..................... ..... .................................................. .........
(c)
Sludge Drying Bads=Gravity....................................................................................... :..2
.........................
tVacuum
Assistod.............................................................................................................---......................5
(d)
Sludge Elvidallon..................
(o)
Sludge Condhloner (chemical or thermal) ................... ___ ........ E`......................,t
t
(I)
................................
Sludge Thickener (gravity).........................................................................•............ .,5
(g }
Dissolved Air Flotation Unit (not applicable to a unit rated as(3)(i))...........:.................................................9
h
Slud a Gas Utilize'lion (inductingas storage
(1)
Sludge Holding Tank Aerated ........................ ........................ ....... .......,..........-................................. .
Nor>-aeraled......................
i
(J}
Sludge Incimralor (not lnduding activated carbon regeneration)................................................................to
(k)
Vacuum Fher, Centrifuge, or Filer Press or other similar dewatering devices ....... ............................................ t o
(8)
RESIDUALS LMLIZATION USPOSAL Cinduring Incinerated ash)
(a)
Lagoons .................. .................................................................................................... .... 2
(b)
Land Appk'calien (suriace and subsurface) (see dallnition 22a)
by contracting to a land app; zmion operator or landfill operator who Fotds the land appiicalian permit
orlandiid perrdl.............................................................................................................I——....................2
(c)
Dedicated Landfill(burial) by the permi;tae of the waslewaler Ireavreni facility...............................................5
(a)
Chlorination............................................_...................................-....._.........5
(b)
Dechlorinalion................................................................................................................_..........-.........•---5
(c)
Ozone................................................................................................................5
{d}
Fiadlation................................ ............................ ....................................... __........................................ ..5
(10}
CHEMICAL ADDITION SYSTEM(S) ( see delinhion No. 9) [not applicable to chemical addlltom rated as hem (3)0).
(6)(:j). (6)(b), (7)(b), {7)(e), (9a), (9)(b) or (9)(c) 5 points each:
......................................................................................... 5
.. 5
....................................................................................... .......
-w
j (5 1)
MLSC81 ANECUS UNITSrrrFOCESSES
(a)
Holding Ponzs, Holding Tanks or Settling Ponds for Organic or Toric 1.1jladals Including wastes Irom r'ning
operations containing nitrogen of phosphorus compounds In amounts signilicantly greater than Is common
fordomestic wastewaler..................... .................. __.................................................................... ............. 4
(h)
Eliluont Row Equalization (ncl applicable to storage basins which are inherent In land appiicalion systens)...... 2
(c)
Stage Disch:rga (not applicable to storage baslrs Inherent In land a;9lic2Con systems)..................................5
(d)
Pumps................................--...............................................................7
(e)
Stxnd•By Powar Supply.............................................................................................................................3
(I)
Thermal Pollvlon Comm[ Nv;ca...............................................
TOTALPOINTS ............ .............. ........................................ I......
ClASSF)CATCq
............................................................................................-...
Class11.........................................................................................................26.50 Points
CtassIV............................................ ............................................................ 51-65 Points
C.iasz N ..... ............................................. ...................... :...... ........................ 6s -Up Points
Faciiiiiss having a rating of one Through four points. Inclusive, do no; require a certilled operator.
Facilities having an activated sludge process Will be assigned a minimum classification of Class It.
Facilities having treatment processes for the rBmoval of metal or cyan::;- will be assigned a minimum classification of Class R.
Facdiiies having Imatmarrl procosses for the biological removal of phosphorus will be assigned a rnlnimum tlass rasion of Class 111.
-------------------------------------------------------------
.0004 DERNFIQNS
The lotiowing definitions shall apply throughout Ihls Subchapler.
(1) ACivatad Carbon Beds. A physicavchomical rne!rrsd for reducirc soluble organic material from wasiewa:er effluent; The column -type beds used in INS
mathad call[ have a flow rate varying from two to eight gallons per r..'-nute per square fool and may be either vpflow or downflow carbon beds. Carbon mai' :
may not be reganera[ed an the wastewater treatment plant site;
(2) Aerated Lagoons. A basin in which all solids vs maintained in suspension and by which biological oxida:un or organic mater is reduced through aaiiici�
acce�arled transfer of oxygen or a flow•1hrough basis;
(3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen in a liquid by spraying, agnalion or diffusion:(�a) Ex;endcd
Aarmion- An activated sludge process utilizing a rnarnum hydraulic detention time of 16 hours.
(4) AQ -'i Rurally managed site. Any site on which a crop is produciu,, managed, and harvested (Crop includes grasses, grains, IreeS, e(c.);
(5) Ai-, Stripping. A process by which the ammoniun ion is first converted to dissolved ammonia (pH adjusirzent) with the ammonia then ralaased lc 1h9
aims ,bene by physical means; or other similar processes which rerncve petroleum products such as benzene, toluene, and xylerva;
(6) cZ-bon RBganeratlon_ The regerlerallon of exhausted carbon by the use of a lunate to provide extreme.; high temperdures which volati.Ze and oxidize
abso.�_-d impuri',ies;
(7) Cz.•bonaceo s Stage. A stage of wastewater irealmen[ designed to ichieve ,'secondary' efts lent limits;
(E) Ca-xrduge. A mechanical device in which centrifugal force is used to separate solids from liquids or to separale liquids of dilloron: d`3nsk'Os;
(9) Clxracal A.ddtifon Sysloms- The addition of the^lcal(s) to waste•vrater at an application print for purposfs of Improving solids removal, pH adjustment.
all-a!'r4 conlroL etc.; the capability to ezperimanl with different chemicals and crdlorent applicalion points to a_hieve a Specific result will bo considemd one
sys:e.-_� the cacability to add chemical(s) to dual units vrill be rated as orv- system; capability to add a chemic;[ at a different application points for dit18mill
pure -*s %,% res.A in the sysloms being rated as separate systens;
(16) Cwiriical Stage Conditioning. Tho addition of a chemical compound such as ilme, lotric chloride, or a iriyner to wet sludge to coalesce IFa mass pr'sor
its i'>,7-.7.!tion 10 a dewatering dovice;
(15) &&_sed Cyda Systems. Uso ul holding ponds or holding tanks for contalnmont of wastex•alar conraining inorganic, cion -toxic materials Irom sznd,
cr,:.Rd stone or otFar zimilar operations. Such systens shall carry : maximum of Ivro points regardless of purnping facilitias or any other appurtonarces;
(17) Ccr..anad R-1—al of Carboracaous 500 and Nitrogenous Rcroval by Nitrification. A sirr„ta stago systo m roouired to achisvo permit ati[uont [i its on 134'
and a=,i,-*a:ia &-oven within the same biological reac or,
aorra-src The parrial or complcto roduCior: of tosidual Oko re in a liquid by any chorcal or pli"iczl process;
(tt) n2r,}�:iii Process. The conversion of niirare-nitrogen to dreogon gas;