Sec. 32C-103. Prohibited and permitted practices.
A. A person may not use, store, treat or dispose of stormwater, pollutants, or significant materials in a manner that creates a public nuisance as defined in Section 32C-102.
B. A person may not release to a publicly owned right-of-way, retention or detention basin, or public storm drain system any substance that is not composed entirely of stormwater, except for the following:
1. Releases pursuant to a NPDES/AZPDES permit;
2. Releases resulting from emergency firefighting activities;
3. Releases of materials as provided in subsection F, G or H of this section.
C. A person may not install or use a direct connection to the public storm drain system without written permission of the City Manager.
D. A person shall maintain best management practices and post-construction stormwater controls, including but not limited to stormwater retention and detention basins, drywells, and storage structures. Maintaining post-construction stormwater controls and BMPs means achieving and maintaining the original design intent for detention, retention, and treatment. The person shall keep written records and documentation of all inspections, cleaning, repair, calibration, and maintenance required demonstrating compliance with this subsection. The owner shall keep the records for a minimum of five years from the date the record is created and shall make the records available to the City upon request.
E. A person may not interfere with or prohibit any City employee from conducting any activities in furtherance of the requirements of this chapter, including conducting inspections and collecting samples.
F. This section does not prohibit releases of stormwater from stormwater retention or detention basins if a permit or approval is first obtained from the City Manager. A person seeking such a permit or approval shall demonstrate that the release is not reasonably expected to contain pollutants or cause or contribute to a public nuisance as defined in this chapter.
G. This section does not prohibit releases from the following sources, provided those releases are not a significant source of pollutants and are discharged in a manner that does not create a public nuisance as defined in this chapter:
1. Water line flushing.
2. Landscape irrigation.
3. Diverted stream flows.
4. Rising ground waters.
5. Uncontaminated groundwater infiltration (as defined at 40 CFR 35.2005(b)(20)) to separate storm sewers.
6. Uncontaminated pumped groundwater.
7. Discharges from potable water sources.
8. Foundation drains.
9. Air conditioning condensation.
10. Irrigation water.
11. Springs.
12. Water from crawl space pumps.
13. Footing drains.
14. Lawn watering.
15. Individual residential car washing.
16. Flows from riparian habitats and wetlands.
17. Dechlorinated swimming pool discharges.
18. Street wash water.
19. Discharges or flows from emergency firefighting activities.
H. This section does not prohibit releases to the public storm drain system that are authorized pursuant to a NPDES/AZPDES permit; provided, that all conditions of that permit are met and the City has been provided a copy of the applicable authorization to discharge or other written proof of permit coverage. Examples of this include releases authorized under the NPDES/AZPDES general permits for de minimis discharges or stormwater discharges associated with industrial activity. An authorization under a separate NPDES/AZPDES permit, however, does not exempt a person from preparing a stormwater management plan and submitting it to the City, if required under Section 32C-104. (Ord. No. G-3589, § 1; Ord. No. G-5707, 2012; Ord. No. G-7116, § 3, 2023)