NPDES Permit Number AL0025852 - Alabama Department of ...

NPDES Pennit Number AL0025852
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PART IV SPECIFIC REQUIREMENTS, CONDITIONS, AND LIMITATIONS
A. SLUDGE MANAGEMENT PRACTICES
I. Applicability
a. Provisions of Provision IV.A. apply to a sewage sludge generated or treated in treatment works that is applied to
agricultural and non-agricultural land, or that is otherwise distributed, marketed, incinerated, or disposed in landfills
or surface disposal sites.
b. Provisions of Provision IV.A. do not apply to:
(I) Sewage sludge generated or treated in a privately owned treatment works operated in conjunction with industrial
manufacturing and processing facilities and which receive no domestic wastewater.
(2) Sewage sludge that is stored in surface impoundments located at the treatment works prior to ultimate disposal.
2. Submitting Information
a. If applicable, the Permittee must submit annually with its Municipal Water Pollution Prevention (MWPP) report the
following:
(I) Type of sludge stabilization/digestion method;
(2) Daily or annual sludge production (dry weight basis);
(3) Ultimate sludge disposal practice(s).
b. The Permittee shall provide sludge inventory data to the Director as requested. These data may include, but are not
limited to, sludge quantity and quality reported in Provision IV.A.2.a as well as other specific analyses required to
comply with State and Federal laws regarding solid and hazardous waste disposal.
c. The Permittee shall give prior notice to the Director of at least 30 days of any change planned in the Permittee's
sludge disposal practices.
3. Reopener or Modification
a. Upon review of information provided by the Permittee as required by Provision IY.A.2. or, based on the results of an
on-site inspection, the permit shall be subject to modification to incorporate appropriate requirements.
b. Ifan applicable "acceptable management practice" or if a numerical limitation for a pollutant in sewage sludge
promulgated under Section 405 of FWPCA is more stringent than the sludge pollutant limit or acceptable
management practice in this permit. This permit shall be modified or revoked or reissued to conform to requirements
promulgated under Section 405. The Permittee shall comply With the limitations no later than the compliance
deadline specified in applicable regulations as required by Section 405 of FWPCA.
B. EFFLUENT TOXICITY LIMITATIONS AND BIOMONITORING REQUIREMENTS FOR CHRONIC TOXICITY ­
OUTFALL 0011 AND OUTFALL 0031
I. Chronic Toxicity Test
a. The permittee shall perform short-term chronic toxicity tests on the wastewater at Outfall DOlI and Outfall 0031.
b. The samples shall be diluted using appropriate control water to the Instream Waste Concentration (lWC) which is
100 percent effluent. The IWC is the actual concentration of effluent, after mixing, in the receiving stream during a
7-day, 10-year low flow period.
c. Any test result that shows a statistically significant reduction in survival, growth, or reproduction between the control
and test samples at the 95% confidence level indicates chronic toxicity and shall constitute noncompliance with this
permit.
2. General Test Requirements
a. A minimum of three (3) 24-hour composite samples shall be obtained for use in the above biomonitoring tests.
Samples shall be collected every other day so that the laboratory receives water samples on the first, third, and fifth
day of the seven-day test period. The holding time for each composite sample shall not exceed 36 hours. The control
water shall be a water prepared in the laboratory in accordance with the EPA procedure described in EPA 821-R-02­
013 (most current edition) or another control water selected by the Permittee and approved by the Department.
b. Test results shall be deemed unacceptable and the Permittee shall rerun the tests as soon as practical within the
monitoring period for the following: