WQ0000425_Final Permit_19900817

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor
William W. Cobey, Jr., Secretary
W. J. Michael Moore, City Manager
City of Thomasville
Post Office Box 368
Thomasville, North Carolina 27360
Dear Mr. Moore:
George T. Everett, Ph.D.
Director
August 17, 1990
Subject: Permit No. WQ0000425
City of Thomasville
City of Thomasville Water Treatment Plant
Alum Sludge Disposal Lagoon
Davidson County
In accordance with an error brought to our attention concerning the groundwater
monitoring requirements in the July 30, 1990 permit, we are forwarding herewith Permit No.
WQ0000425 as amended to included updated groundwater conditions, dated August 17, 1990, to
the City of Thomasville for the continued operation of an alum sludge disposal lagoon.
This permit shall be effective thirty (30) days from the date of issuance until June 30,
1995, and shall supersede Permit No. WQ0000425 issued July 30, 1990, and shall be subject to
the conditions and limitations as specified therein, Please pay particular attention to the monitoring
requirements in this permit. Failure to establish an adequate system for collecting and maintaining
the required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable to you,
you have the right to request an adjudicatory hearing upon written request within 30 days
following receipt of this permit. This request must be in the form of a written petition, conforming
to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative
Hearings, P.O. Box 11666, Raleigh, NC 27604. Unless such demands are made this permit shall
be final and binding.
If you need additional information concerning this matter, please contact Mr- Mark Hawes
at 919/ 733-5083.
4George
y, ,
. Eve tt
cc: Davidson County Health Department q j t—
Winston-Salem Regional Office�1ry>
Groundwater Section
t
Pollution Prevention Pays��
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone] �Q
An Equal Opportunity Affirmative Action Employer%'�]

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SLUDGE LAGOON 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
CITY OF THOMASVILLE
Davidson County
FOR THE
continued operation of a Alum Sludge Lagoon consisting of a 350 GPM pump station with
approximately 14,000 lineal feet of 8 inch force main, a sludge receiving station with a sloped
concrete pad and 6 inch gravity flow sewer pipe to discharge into a 2.1 acre sludge settling lagoon,
a decanting structure with height adjustable telescoping valves, a rip -rap effluent discharge channel
to discharge supernatant into a 4.3 acre lagoon with no discharge of wastes to the surface waters,
pursuant to the application received April 25, 1990 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 thirty (30) days from the date of issuance until June 30, 1995,
and shall void Permit No. WQ0000425 issued July 30, 1990, and shall be subject to the following
specified conditions and limitations:
I. PERFORMANCE STANDARDS
This permit shall become voidable if the site are maintained and operated in a manner
which will protect the assigned water quality standards of the surface waters and ground
waters.
2. The alum sludge lagoons 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 Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
4. In the event that the alum sludge lagoons are not operated satisfactorily, including the
creation of nuisance conditions, the Permittee shall cease applying sludge to the alum
sludge lagoons and take any immediate corrective actions, including t op tr-i &
ET
additional or replacement wastewater treatment or disposal facilities. C`
5. The followingbuffers zones shall be maintained: +� � 2Q U9
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a) 400 feet from residences 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.
b) 100 feet from "SA and SB" classified waters and public surface water
supplies for both methods,
c) 50 feet from "WS" classified waters and other streams, creeks, lakes, rivers, and
surface water drainage ways for injection method.
d) 100 feet from "WS" classified waters and other streams, creeks, lakes,
rivers and surface water drainage ways for surface application
method,
e) 100 feet from property lines,
f) 50 feet from public right of ways for surface application methods,
g) 10 feet from upslope interceptor drains and surface water diversions,
h) 25 feet from downslope interceptor drains, surface water diversions,
groundwater drainage systems and surface drainage ditches.=
6. A copy of this permit shall be kept at the alum sludge lagoons' site when sludge is being
applied during the life of this permit. A spill prevention and control plan shall be kept
in all sludge transport and application vehicles.
1. The facilities and disposal sites shall be properly maintained and operated at all
times.
2. No sludges other than the following are hereby approved for disposal in accordance with
this permit:
Sourc County Estimated Volume
Thomasville WTP Davidson 6,500 gallons/week
3. The Permittee shall employ a certified wastewater treatment plant operator to be in
responsible charge of the alum sludge lagoon operation. The operator must hold a
certificate of the grade at least equivalent to the classification assigned to the land
application program by the Certification Commission.
4. Adequate procedures shall be provided to prevent surface runoff from carrying any
disposed or stored sludge material into any surface waters.
5. Appropriate measures must be taken to control public access to the alum sludge lagoons
during active site use and for the 12 -month period following the last sludge application
event. Such controls may include the posting of signs indicating the activities being
conducted at each site.
6. Adequate provisions shall be taken to prevent wind erosion and surface runoff
from conveying pollutants from the alum sludge lagoon area onto the adjacent property or
into the surface waters.
AUG 20

III.MQNITORING AND REPORTING REQUIREMENTS
1. Any monitoring (including groundwater, surface water, sludge, 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. If monitoring data indicates
minimal or no concern to the Division, reduction of monitoring requirements may be
pursued after two annual reporting periods.
2. Proper records shall be maintained by the Permittee tracking all disposal activities.
These records shall include, but are not necessarily limited to the following
information:
a) source of sludge
b) date of sludge transportation
c) method of transportation
d) weather conditions
e) volume of sludge in gallons
f) annual and cumulative totals of dry tons of sludge disposaed of, annual and
cumulative pounds of each heavy metal (which shall include, but not
be limited to Iead,nickel, cadmium, copper and zinc).
3. An annual sludge analysis and annual EP Toxicity analysis shall be conducted by
the Permittee and the results maintained on file by the Permittee for a minimum of five
years. The sludge analysis shall include but is not necessarily limited to the following
parameters:
% total solids Magnesium
Chlorides
Sulfate
Phosphorus
Potassium
Lead
Zinc
Copper
Nickel
Cadmium
Chromium
Sodium
Calcium
Total Nitrogen
Ammonia Nitrogen
Nitrate/Nitrite Nitrogen
pH
The EP Toxicity analysis shall include the following parameters:
Arsenic
Barium
Cadmium
Chromium
Lead
Mercury
Selenium
Silver
Endrin
Lindane
Methoxychlor
Toxaphene
2,4-D
2,4,5 -TP Silvex
4. Three copies of all monitoring and reporting requirements as specified in conditions
Ill 1, 1I1 2, and 11I 3 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 SW ;
Facility Assessment Unity r -
PO Box 276$7 )RIA,
V
Raleigh, NC 27611-7687 AUO 20 igg
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5. Noncompliance Notification:
The Permittee shall report by telephone to the Winston-Salem, Regional Office
telephone no. [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 alum sludge lagoon program which results in the
alum sludge of significant amounts of wastes which are abnormal in
quantity or characteristic.
b. Any failure of the alum sludge lagoon program resulting in a release of
alum sludge 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 sludge treatment.
e. Any spillage or discharge from a vehicle or piping system transporting
sludge 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.
I. The three (3) existing monitor wells must be sampled initially after construction (and
prior to waste disposal operations) and thereafter every March, July, and November
for the following parameters:
TDS (500.0) TOC
pH ( 6.5-8.5 standard units) Water Level
Chromium (0.05) Lead (0.05)
Volatile Organic Compounds - In November only (by Method 1 or Method 2 below)
Method 1: Method 6230D ( Capillary - Column), "Standard Methods for
the Examination of Water and Wastewater", 17th edition, 1989
Method 2: Method 502.2 " Methods for the Determination of Organic
Compounds in Drinking Water", United States Environmental
Protection Agency - 600/4-88/039
The measurement of water level must be made prior to sampling for the remaining
parameters. M
The measuring points (top of well casing) of all monitoring wells shall be
surveyed relative to mean sea level (M.S.L.). The depth of t yvApe"i , ala well
shall be measured from the surveyed point on the top of the 9� jib 'h � t '
elevations shall then be determined relative to M.S.L. A3� °
aur, 20 1990 D

The numbers in parentheses represent the maximum allowable concentrations in
groundwater for the various analytical parameters, as specified in 15 NCAC 2L
[Groundwater Classifications and Standards]. Unless otherwise noted, the
concentrations are given in parts per million.
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/l, this
concentration will be taken to represent the naturally occurring TOC concentration.
Any exceedances of this naturally occurring TOC concentration in the downgradient
wells shall be subject to the additional sampling and analysis as described above.
If any volatile organic compounds are detected by method 6230D, or the equivalent
method 502.2, then EPA methods 604 and 611 must also be run to detect other
organic compounds which may be present. The results of all analysis specified in
the monitoring requirements, including 604 and 611 if required, must be submitted
simultaneously
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management on Form GW -59 (Compliance Monitoring Report Form)
every April, August, and December.
2. The Compliange Boundary is specified by regulations in 15 NCAC 2L,
Classifications and Water Quality Standards applicable to the groundwater of North
Carolina. An exceedance of Groundwater Quality Standards beyond the Compliance
Boundary is subject to penalty provisions applicable under General Statute
143-215.6(1)a. The sale of property, by the Permittee, which is within or contiguous
to the disposal system site may alter location of the Compliance Boundary.
For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the perimeter of the lagoon, or 50 feet within
the property boundary.
If the title to any property which may affect the location of the Compliance Boundary
is changed, the permittee shall notify the Division Director within 14 days. The
Director shall then establish a modified Compliance Boundary which will be done as a
modification to the Permit.
The REVIEW BOUNDARY for the disposal system is specified by regulations in 15
NCAC 2L, Groundwater Classifications and Standards. A REVIEW
BOUNDARY is established around disposal systems midway between the
Compliance Boundary and the perimeter of the waste disposal area. When the
concentration of any substance equals or exceeds the maximum allowable
concentration of that substance at the _REVIEW BOUNDARY, as determined by
monitoring, the permittee shall either (i) demonstrate, through predictive calculations
or modeling, that natural site conditions, facility design and operational controls will
prevent a violation of standards at the Compliance Boundary; or, (ii) submit a plan
for the alteration of existing site conditions, facility design or operational controls
that will prevent a violation of standards at the Compliance Boundary, and
implement that plan upon its approval by the Director.
3. Any groundwater quality monitoring as deemed necessary by the Division of
Environmental Management shall be provided.
AUG 20 i9go
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ONEWROUWdyff M
1. The Permittee or his designee shall inspect the alum sludge storage, transport, and
disposal facilities to prevent malfunctions and deterioration, operator errors and
discharges which may cause or lead to the release of wastes to the environment, a
threat to human health, or a nuisance. The Permittee shall keep an inspection log
or summary including at least the date and time of inspection, observations made,
and any maintenance, repairs, or corrective actions taken by the Permittee. This
log of inspections shall be maintained by the Permittee for a period of three years
from the date of the inspection and shall be made available upon request by the
Division of Environmental Management or other permitting authority.
2. Any duly authorized officer, employee, or representative of the Division of
Environmental Management may, upon presentation of credentials, enter and
inspect any property, premises or place on or related to the disposal site and
facility at any reasonable time for the purpose of determining compliance with this
permit; may inspect or copy any records that must be kept under the terms and
conditions of this permit; or may obtain samples of groundwater, surface water,
or leachate.
1. This permit shall become voidable unless the alum sludge lagoon activities are
carried out in accordance with the conditions of this permit 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 transferable. In the event 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. Prior to any transfer of this Iand, a notice shall be given to the new owner that
gives full details of the materials applied or incorporated at this site.
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.
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. A set of approved documents for the subject project must be retained,b�y;e�plicant
for the Iife of the permit. hh � f • ' A
AUG 20
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9. The Permittee, at least six (6) months prior to the expiration of this permit, shall
request its extension, Upon receipt of the request, the Commission will review
the adequacy of the facilities described therein, and if warranted, will extend the
permit for such period of time and under such conditions and limitations as it may
deem appropriate.
10. 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.
Permit issued this the 17th day of August, 1990
CAROLINA ENAIRONMENTAL MANAGEMENT COMMISSION
George T. Evere irec o
Division of Enviro en agement
By Authority of the nvlronmental Management Commission
Permit No. WQ0000425
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