Environmental Rules in Surprise, AZ (2026)
3 verified environmental rules for Surprise, Arizona, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Surprise bans discharging anything but storm water into its public storm drain system under City Code § 58-491, naming landscape irrigation runoff, draining pools and spas, and dirty vehicle-wash water as expressly prohibited sources. Certain flows like waterline flushing and fire hydrant tests are allowed only with city permission.
Surprise Stormwater Discharge Restrictions
Significant RestrictionsSurprise Municipal Code § 58-491
(a)Unless expressly identified in this chapter or authorized by the city, no person shall cause a discharge, either directly or indirectly, to the public storm water system containing any substance that is not composed entirely of storm water; or to cause a discharge composed entirely of storm water in such a volume or at such a rate as to cause damage to the public storm water system.(b)It sha...
Erosion Control
Surprise requires anyone conducting significant construction activity, defined as one acre or more of land disturbance, to keep erosion and sediment controls in place and maintained for the life of the project. The rule is enforced by the city engineer under the storm water ordinance, Chapter 58, Article VI.
Surprise Construction Erosion & Sediment Control
Some RestrictionsSurprise, AZ Municipal Code § 58-492(c)
Any person operating under a construction storm water permit issued by the EPA or ADEQ shall not cause or contribute to any condition that may result in a violation of any storm water permit issued by the city. Such person shall undertake any and all BMPs necessary to: minimize to the MEP the potential of any pollutant being discharged from the construction site; provide protection from acciden...
Flood Zones
Surprise did not set up its own floodplain program. The city adopts Maricopa County's Floodplain Regulations and Flood Insurance Study by reference, and the city engineer serves as the NFIP floodplain administrator coordinating with the county flood control district on any development in a special flood hazard area.
Surprise Floodplain Development Rules
Some RestrictionsSurprise, AZ Land Development Ordinance §§ 104-4.1–104-4.3
A.The city elects not to assume the responsibility of floodplain management from the flood control district of the county as provided for in A.R.S. §§ 48-3609 and 48-3610. The city engineer is designated as the NFIP [National Flood Insurance Program] floodplain administrator for the city, is responsible for coordinating with the county flood control district, and will serve as the community poi...
Looking for Maricopa County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Surprise city rules.
Environmental Rules in Maricopa County →