DWQ-2023-200050

APPENDIX I.D - Storm Water Discharges Associated with Industrial Activity fromAsphalt Paving and Roofing Materials Manufacturers and Lubricant Manufacturers
Coverage of This Section.
Discharges Covered Under This Section. The requirements listed under this Part shall apply to storm water discharges from the following activities:
Table I.D.1 – Sector D: Asphalt Paving and Roofing Materials Manufacturers and Lubricant Manufacturers
SIC Code
Activity Represented
2951, 2952
Asphalt Paving and Roofing Materials
2992
Lubricating Oils and Greases
2999
Miscellaneous Products of Petroleum and Coal
Sector Specific Limitations on Coverage. In addition to the limitations on coverage listed in Part I.C, the following storm water discharges associated with industrial activity are not
authorized by this section of the permit:
Stormwater discharges from petroleum refining facilities, including those that manufacture asphalt or asphalt products that are classified as SIC Code 2911 and covered in Appendix I.I.
Stormwater discharges from oil recycling facilities, which are covered in Appendix I.N; and
Stormwater discharges associated with fats and oils rendering, which are covered in Appendix I.U.
Sector Specific Prohibition of Non-Stormwater Discharges. There are no additional prohibited nonstormwater discharges beyond those in Part I.D of this permit.
Sector Specific Control Measures and Effluent Limits.
There are no additional control measures and effluent limits beyond those in Part III of this permit.
Sector Specific Inspection Requirements.
There are no additional inspection requirements beyond those in Part IV.A of this permit.
Sector Specific Plan Requirements.
There are no additional Plan requirements beyond those in Part VII.D of this permit.
Monitoring Requirements.
Analytical Benchmark Monitoring. The following analytical benchmark monitoring parameters shall apply specifically to sector D facilities. Parameters found in this Part apply to both
primary industrial activities and any co-located industrial activities.
Table I.D.2 – Analytical BenchmarkMonitoring Parameters for Asphalt Paving and Roofing Materials (SIC 2951, 2952)
Parameter
Benchmark Monitoring Concentration
Total Suspended Solids1
100 mg/L
Sampling for total suspended solids is not required for stormwater discharges that are infiltrating to groundwater.
Numeric Effluent Limitation Monitoring. Numeric effluent limitation monitoring shall be required for sector D facilities conducting certain industrial activities. The concentration of
pollutants in stormwater discharges, independent of comingling, as discussed in Part V.C.2, shall not exceed the following effluent limitations at any time during the duration of permit
coverage.
Table I.D.3 – Numeric Effluent Limitation Monitoring Parameters
Industrial Activity
Parameter
Effluent Limitation
Discharges from asphalt emulsion facilities
Total Suspended Solids1
23 mg/L, daily maximum
15 mg/L, 30-day average2
pH
6.0 s.u. – 9.0 s.u.
Oil and Grease
15 mg/L, daily maximum
10 mg/L, 30-day average2
Sampling for total suspended solids is not required for stormwater discharges that are infiltrating to groundwater.
For averaging purposes, you may use a value of zero for any individual sample parameter which is determined to be less than the method detection limit. For sample values that fall between
the method detection limit and the quantitation limit (i.e., a confirmed detection but below the level that can be reliably quantified), use a value halfway between zero and the quantitation
limit.