Stormwater Pollution Prevention Plan - Phoenix Sky Harbor ...

Non-mining MSGP 2010 General Permit
monitoring. The quarterly routine facility inspections are reduced to one routine facility
inspection and one CFI each calendar year. These inspections shall be conducted in the
opposing wet seasons and at least three months apart. The permittee shall also inspect the site
whenever there is a reasonable expectation that severe weather or natural disasters may have
damaged control measures or increased discharges.
8.D.4 Sector-Specific Benchmarks.
Table 8.D-1 identifies benchmarks that apply to the specific subsectors of Sector D. These benchmarks
apply to both the facility’s primary industrial activity and any co-located industrial activities, which describe
the site’s activities.
Subsector
(Facility discharges may be subject to
requirements for more than one
sector/subsector)
Subsector D1. Asphalt Paving and Roofing
Materials (SIC 2951, 2952)
Table 8.D-1
Parameter
Total Suspended Solids
(TSS)
Benchmark Monitoring
Concentration
Reserved
8.D.5 Effluent Limitations Based on Effluent Limitations Guidelines (See also Part 6.2.2.1).
Table 8.D-2 identifies effluent limits that apply to the industrial activities described below. Compliance with
these effluent limits is to be determined based on discharges from these industrial activities independent
of commingling with any other wastestreams that may be covered under this permit.
Table 8.D-2 1
Industrial Activity Parameter Effluent Limitation
Discharges from asphalt emulsion facilities.
Total Suspended Solids
23.0 mg/L,
daily maximum
(TSS)
15.0 mg/L,
30-day avg.
pH
Oil and Grease
6.0 – 9.0 s.u.
15 mg/L,
daily maximum
10 mg/L,
30-day avg.
1 Monitor annually.
Stormwater Discharges Associated with Industrial Activity – Sector D 42