Stormwater Pollution Prevention Plan - Phoenix Sky Harbor ...

8. Uncontaminated groundwater or spring water;
9. Foundation or footing drains where flows are not contaminated with process
materials such as solvents;
10. Hydrostatic testing of new pipes, tanks or vessels using potable water, surface
water, or uncontaminated groundwater; and
11. Discharges of water associated with drilling, rehabilitation and maintenance of
potable or non-potable water wells and piezometers, or water supply or water
quality evaluations including:
a. Discharges from any borehole not fully developed;
b. Well purging;
c. Well/aquifer pump tests not associated with groundwater remediation
activities;
d. Backflushing of injection wells provided the discharge meets applicable
water quality standards
All other non-stormwater discharges are considered unauthorized.
There are several allowable non-stormwater discharges at PHX. Testing and
maintenance of the fire pumps for the fire suppression systems occur at:
• US Airways facility
• COP Fire Stations
• City of Phoenix Buildings, including Terminal 2, Terminal 3, and Terminal 4
• Arizona Air National Guard facility
• Cutter Aviation
• Swift Aviation Services, Inc.
• Southwest Airlines
Pesticides and herbicides are used in limited quantities at PHX in areas subject to
landscape watering.
Parts of the storm drain system at PHX are a continuation of COP MS4 components
located along 24 th , 32 nd , 40 th , and 44 th Streets. There is a potential for unauthorized nonstormwater
discharges to enter the PHX storm drain system through these drainage
ways.
If an unauthorized non-stormwater discharge is identified, COPAD will follow
reporting requirements in Section 6.5 for Corrective Action.
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