​​​​​​​​​​​​​​​​​​​​​​​

 

 

Ozone1 True/oep/ozone1Air QualityOzone02
Organizational Chart (PDF)1 True/oepsite/Documents/OEP%20Org%20Chart%202020.pdf2About UsOrganizational Chart (PDF)11
Contact OEP1 True/oep/contact3About UsContact OEP01
Dust and Smoke1 True/oep/dust2Air QualityDust and Smoke02
2050 Sustainability Goal1 True/sustainability/air3Air Quality2050 Sustainability Goal02
About1 True/oep/brownfields-about1Brownfields Land Recycling ProgramAbout03
Projects1 True/oep/brownfields-projects2Brownfields Land Recycling ProgramProjects03
Brownfields to Healthfields Initiative1 True/oep/brownfields-and-healthfields3Brownfields Land Recycling ProgramBrownfields to Healthfields Initiative03
Rio Reimagined Project1 True/oep/rio-reimagined-project4Brownfields Land Recycling ProgramRio Reimagined Project03
Potential Redevelopment Opportunities Inventory1 True https://mapapps.phoenix.gov/BrownFieldsInventory/default.htm5Brownfields Land Recycling ProgramPotential Redevelopment Opportunities Inventory13
Climate Overview1 True/oep/climate1Climate ChangeClimate Overview04
About EQSC1 True/oep/EQSC1Environmental Quality and Sustainability CommissionAbout EQSC05
EQSC Meeting Details1 True/oep/EQSC/meeting-details2Environmental Quality and Sustainability CommissionEQSC Meeting Details05
Urban Heat Island/Tree & Shade Subcommittee1 True/oep/EQSC/UHI-tree-shade-subcommittee3Environmental Quality and Sustainability CommissionUrban Heat Island/Tree & Shade Subcommittee05
Food System Info1 True/oep/food-systems1Food SystemsFood System Info07
2025 Food Action Plan1 True/oep/food-systems/2025-phoenix-food-action-plan2Food Systems2025 Food Action Plan07
Phoenix Food Day & HealthFest1 True/oep/foodday3Food SystemsPhoenix Food Day & HealthFest07
Food Resources1 True/oep/food-systems/resources4Food SystemsFood Resources07
Environmental Site Assessment Records1 True/oep/environmental-site-assessment-records1Hazardous Materials, Waste and RemediationEnvironmental Site Assessment Records08
Related Links and Contacts1 True/oep/HAMWAR-links2Hazardous Materials, Waste and RemediationRelated Links and Contacts08
About SPP1 True/oep/SPP-about1Sustainable Purchasing ProgramAbout SPP09
2017 SPP (PDF)1 True/oepsite/Documents/Sustainable%20Purchasing%20Policy.pdf2Sustainable Purchasing Program2017 SPP (PDF)19
Stormwater1 True/oep/Stormwater1Surface WaterStormwater010
Section 4041 True/oep/Section-4042Surface WaterSection 404010
Related Links1 True/oep/wildlife-links2WildlifeRelated Links011
Farmland Preservation Program1 True/oep/farmland3Food Assistance and GrantsFarmland Preservation Program06
Backyard Garden Program1 True/oep/backyard-garden2Food Assistance and GrantsBackyard Garden Program06
Food Assistance1 True/oep/food-assistance4Food Assistance and GrantsFood Assistance06
Grants1 True/oep/food-grants5Food Assistance and GrantsGrants06
Training Programs1 True/oep/food-training6Food Assistance and GrantsTraining Programs06
GHG Inventories 1 True/oep/2018GHG3Climate ChangeGHG Inventories 04
Administrative Regulation 1.54 (PDF)1 True/oepsite/Documents/ar154.pdf1About UsAdministrative Regulation 1.54 (PDF)11
Climate Action Plan1 True/oep/cap4Climate ChangeClimate Action Plan04
Monarch Conservation​​1 True/oep/monarch1WildlifeMonarch Conservation​​011
Climate Resources1 True/oep/climate-resources2Climate ChangeClimate Resources04
Overview1 True/oep/food-overview1Food Assistance and GrantsOverview06

​​​Section 404​​

The Clean Water Act was designed to protect our nation’s waters (waters of the U.S.). The definition of Waters of the U.S. is determined by the Environmental Protection Agency and U.S. Army Corps of Engineers and is promulgated as federal rule. The most current definition of Waters of the U.S. can be found at the link below for the Navigable Waters Protection Rule. ​OEP provides guidance to internal city projects, facilities, and departments. Members of the public who wish to find the status of any water body/channel in Arizona as a water of the U.S. are encouraged to reach out to the U.S. Army Corps of Engineers Phoenix Regulatory Office at splregulatoryaz@usace.army.mil​ or at 602-230-6949.

river

A Clean Water Act Section 404 permit is required for activities that disturb the ground or add material in a water of the U.S. Seemingly routine activities such as adding riprap to stabilize the bank of a wash or constructing a road or trail across a wash, even temporarily, could trigger the need for a 404 permit. Other laws and federal and state agencies may also be involved in the 404 permitting process.​

dry river

The Office of Environ​mental Programs provides compliance guidance and policy updates on federal, state, and local surface water regulations, including stormwater and Clean Water Act Section 404, to city facilities, operations, and projects.


Related Links

United States Army Corps of Engineers​ on Arizona Section 401 Water Quality Certification ​

Arizona Department of Environmental Quality Section 401 Water Quality Certification 

United States Army Corps of Engineers​ LA District on Section 404 Permitting ​

USACE Nationwide Permit Information ​​ 

EPA Navigable Waters Protection Rule ​