Water Quality

Adequate and quality water resources are essential to the environmental sustainability of the greater Tucson region. Pima Association of Governments helps to preserve and improve the valuable water resources within Pima County’s vast watersheds through regional collaboration and information sharing.

Water resources in the greater Tucson region include groundwater, Central Arizona Project water, surface water, reclaimed water (recycling treated effluent) and stormwater. The region depends on water to sustain residential, agricultural and industrial interests as well as natural habitat and public spaces.

PAG coordinates with local governments to discuss water quality concerns and integrated water issues. Under the federal Clean Water Act, Section 208, PAG is the designated water quality planning agency for the Pima County region, excluding tribal lands.

Areawide Water Quality Management Plan (208 Plan)

Pima Association of Governments maintains and updates an Areawide Water Quality Management Plan (208 Plan) for the region. PAG’s water quality management program provides guidance, technical assistance and coordination of regional water quality management efforts. The 208 Plan achieves effective water quality management through integrated planning of wastewater, stormwater, surface water, groundwater and solid waste. The current 208 Plan was adopted in 2006. Areawide Water Quality Management Plan (2006) View PAG’s 208 Wastewater Facility Inventory…

Wastewater Management

One aspect of PAG’s wastewater management process is water quality permit reviews, or consistency reviews for a regional approach to planning for the treatment of wastewater in Pima County. PAG’s 208 Plan provides policy and management direction for wastewater in Pima County. Regional wastewater planning is coordinated with the region’s three designated management agencies – Pima County, Town of Sahuarita and Town of Marana. The three agencies are responsible for ensuring that wastewater service is…

Stormwater Pollution Prevention

Pollution prevention coordination with PAG member jurisdictions, construction guidance and green infrastructure projects help to manage the quality of stormwater in our region and meet our planning goals under section 208 of the Clean Water Act. The Tucson region is a desert community with streets designed to convey stormwater. Like much of the West, storm sewers are separated from the sanitary sewer system, meaning the stormwater flows to washes without treatment of pollutants. When stormwater…

Water Reliability

Water quality and water reliability go hand in hand. Strong leadership among water providers, local governments and other stakeholders ensures reliable water for our desert community. Community interest in preserving and restoring riparian habitats, such as along Cienega Creek, remains strong. While the regulatory structure is in place to ensure that drinking water needs are met, the trade-off has been that groundwater depletion has seriously degraded the flow of natural streams in the region. Stormwater…