WQ0003090_Correction_20021127

`O�CF W A rF9 pG Michael F. Easley, Governor
y William G. Ross Jr., Secretary
>_ North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
November 27, 2002
MS. SANDRA DIXON, TOWN MANAGER
TOWN OF LIBERTY
POST OFFICE BOX 1006
LIBERTY, NC 27298
Subject: Correction to Permit No. WQ0003090
Town of Liberty
Wastewater Spray Irrigation Facility
Randolph County
Dear Ms. Dixon:
In accordance with a request received from the Division's Winston-Salem Regional Office, we are forwarding
herewith corrected pages 3 and 4 of Permit No. WQ0003090 for the subject wastewater spray irrigation facility.
The following corrections have been made to the permit:
1. The numbering of the items in Section III. Monitoring and Requirements has been corrected.
Condition 111.4 is corrected to be a continuation of Condition M.3, and Condition III.5 has been
corrected and is identified as MA
2. Item HI.7 (now III. ) has been corrected to reference conditions I11.3 and IHA, instead of only 111.3.
Please replace pages 3 and 4 with the corrected pages into Permit No. WQ0003090 issued July 31, 2000.
If you need any additional information concerning this matter, please contact Kristin E. Miguez at [phone]
extension 524.
Sincerd.
Z/�Z_d
for Aian W. Klimek, P.E.
cc: Randolph County Health Department
Winston-Salem Regional Office, Water Quality Section
Winston-Salem Regional Office, Groundwater Section
Groundwater Section, Central Office
Technical Assistance and Certification Unit
Central Files
NDPU Permit Files
Non -Discharge Permitting Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
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III. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed necessary by
the Division to insure surface and ground water protection will be established and an acceptable samplinf
reporting schedule shall be followed.
2. Adequate records shall be maintained by the Permittee tracking the amount of wastewater disposed. These
records shall include, but are not necessarily limited to, the following information:
a. date of irrigation,
b. volume of wastewater irrigated;
c. field irrigated,
d. length of time field is irrigated,
e. continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each field,
f. weather conditions, and
g. maintenance of cover crops.
3. Influent flow shall be continuously monitored and daily flow values shall be reported on Form NDMR.
The Permittee shall install an appropriate flow measurement device consistent with approved engineering
and scientific practices to ensure the accuracy and reliability of influent flow measurement. Flow
measurement devices selected shall be capable of measuring flows with a maximum deviation of less than
10 percent from true flow, accurately calibrated at a minimum of once per year, and maintained to ensure
that the accuracy of the measurements is consistent with the accepted capability of that type of device.
Records of flow measurement device calibration shall be kept on file by the Permittee for a period of at
least three years. At a minimum, data to be included in this documentation shall be:
a. date of flow measurement device calibration,
b. name of person performing calibration, and
c. percent from true flow.
Plans and specifications for the flow measuring device shall be prepared by a licensed Professional Engineer
and submitted to the appropriate regional office 30 days prior to installation. The flow -measuring device
shall be installed within 1 year of the date of this permit.
4. The effluent from the subject facilities shall be monitored by the Permittee at the point prior to irrigation
every March, July, and November for the following parameters:
BOD5 TSS
Fecal Coliform pH
NH3 as N
The effluent from the subject facilities shall be monitored annually by the Permittee at a point prior to
irrigation for the following parameters:
NO3 Boron Total Nitrogen
Phosphorus Copper Sodium
Nickel Magnesium Zinc
Calcium Lead SO4
Chlorine Potassium Cadmium
Chromium Mercury Arsenic
Conductivity Plant Available Nitrogen
Sodium Adsorption Ratio (SAR) by Calculation *
* The SAR value should be utilized as an indicator of potential problems with the spray irrigation fields which may
result from an excessive level of sodium ions in the soil. An SAR value greater than 10 may induce the need for
remediation of the spray irrigation fields using a soil conditioner such as gypsum, dolomitic lime or a magnesium salt.
Condition III.6 below provides more guidance on whether remediation is necessary.

5. A representative annual soils analysis (Standard Soil Fertility Analysis) shall be conducted for 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
If sodium levels in the soil are greater than 10% of the CEC, remediation of the spray irrigation fields should be
initiated using a soil conditioner such as gypsum, dolomitic lime or a magnesium salt.
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.
Cadmium Lead Nickel
6, Three (3) copies of all operation and disposal records (as specified in condition III 2) on Form NDAR-1
shall be submitted on or before the last day of the following month. Three (3) copies of all effluent
monitoring data (as specified in condition H1.3 and III.4) on Form NDMR-1 shall be submitted on or
before the last day of April, August, and December. All information shall be submitted to the following
address:
NC Division of Water Quality
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
7. Noncompliance Notification:
The Permittee shall report by telephone to the Winston-Salem Regional Office, telephone number (336)
771-4600, as soon as possible, but in no case more than 24 hours or on the next working day following the
occurrence or first knowledge of the occurrence of any of the following:
a. Any occurrence at the wastewater treatment facility which results in the treatment of significant
amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the
contents of a sludge digester; the known passage of a slug of hazardous substance through the facility;
or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of
adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators,
compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to
receiving waters without treatment of all or any portion of the influent to such station or facility.
d. Any time that self -monitoring information indicates that the facility has gone out of compliance with
its permit limitations.
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