Scottsdale is set to join class-action settlements over PFAS contamination of drinking water. PFAS are the long-lasting "forever chemicals" tied to firefighting foam, and the proposed settlements with Amerex, Archroma U.S., Carrier Global and Nation Ford Chemical total $4 million, $14 million, at least $129.2 million and $1.875 million. The city has until Dec. 22, 2026 to opt out, and staff recommend adopting Resolution No. 13813; the same day, the council meets privately to discuss buying water and the contracts tied to it in the Harquahala Valley.

Supply takes the spotlight elsewhere. Mesa's council gets a briefing on the city's water supplies — its water portfolio, Colorado River supplies and the Bureau of Reclamation's new record of decision and operating guidelines, plus future investments. In Flagstaff, the Water Commission reviews a draft ordinance for High-Volume Water Users, and both the City Council and the Planning & Zoning Commission discuss new zoning requirements for "resource intensive industrial" land uses such as data centers.

Chandler is deep in wastewater work: its council would approve a construction services agreement and a professional services agreement with Wilson Engineers, LLC for Phase 3 of the Water Reclamation Facility. Both were previewed at the Oct. 12 study session, where a companion engineering item also ran. The city would also extend odor and corrosion contracts — activated carbon from Carbon Activated Corp and iron salt treatment with US Peroxide — with the study session carrying its own carbon item.

Tempe's council handles a stack of utility contracts: wastewater sampling gear from Western Environmental Equipment, backflow parts from Arizona Water Works Supply, reservoir maintenance engineering from Carollo, Well 15 work at the South Tempe Water Treatment Plant with Felix Construction, and a five-year waste collection and transportation mutual aid agreement with seven nearby cities and the Salt River Pima-Maricopa Indian Community. Flagstaff also acts on drainage and land use, with a property acquisition for the Fanning Wash Culvert and a rezone of about 13.01 acres that adds the full Resource Protection Overlay. The through-line: this week is mostly about stretching and protecting the water the region already has — treating it, watching it, and writing rules for the heaviest users.

Stay Informed

Mesa City Council — October 08, 2026

  • Hear a presentation and discussion on Mesa’s Water Supplies including Mesa’s water portfolio, recent federal action (Bureau of Reclamation Record of Decision and Operating Guidelines), Colorado River supplies, and future investments. This presentation will start no earlier than 8:15am.: Mesa's council hears a rundown of where the city's water comes from, its Colorado River supply, and the federal Bureau of Reclamation's new record of decision and operating guidelines, plus planned investments. The talk starts no earlier than 8:15 a.m. View item

Chandler City Council — October 12, 2026

  • Construction Manager at Risk (CMAR) Construction Services Agreement for the Water Reclamation Facility Improvements Phase 3: Chandler's study session previews a construction services agreement for Phase 3 of the city's Water Reclamation Facility improvements — work at the plant that treats the city's wastewater. An agreement and a location map are attached to the item. View item
  • Professional Services Agreement for the Water Reclamation Facility Improvements Phase 3: Chandler also previews a professional services agreement with Wilson Engineers, LLC for construction management on Phase 3 of the Water Reclamation Facility. The draft runs for 1,159 calendar days after the notice to proceed and caps the consultant's fees for the full term. View item
  • Purchase of Activated Carbon for Wastewater Odor Control: Chandler would exercise the first one-year extension on its activated carbon contract with Carbon Activated Corp, covering Sept. 25, 2026 through Sept. 24, 2027, for odor control at wastewater facilities. View item

Flagstaff City Council — October 13, 2026

  • Discussion regarding Resource Intensive Industrial land use (previously Data Centers) zoning requirements and zoning code regulations.: Flagstaff's council discusses zoning requirements and zoning code regulations for "resource intensive industrial" land uses — the category the agenda notes was previously labeled data centers. View item

Flagstaff Planning and Zoning Commission — October 14, 2026

  • Discussion regarding Resource Intensive Industrial land use (previously Data Centers) zoning requirements and zoning code regulations.: The Planning & Zoning Commission takes up the same discussion of zoning requirements and code regulations for "resource intensive industrial" land uses, which the agenda notes were previously labeled data centers. View item

Flagstaff Water Commission — October 15, 2026

  • OLD BUSINESS: Flagstaff's Water Commission reviews a draft ordinance for High-Volume Water Users under old business. Erin Young presents. View item

Chandler City Council — October 15, 2026

  • Construction Manager at Risk (CMAR) Construction Services Agreement for the Water Reclamation Facility Improvements Phase 3: Chandler's council takes up the construction services agreement for Phase 3 of the Water Reclamation Facility improvements, the plant that treats the city's wastewater. View item
  • Professional Services Agreement for the Water Reclamation Facility Improvements Phase 3: The council would also act on the professional services agreement with Wilson Engineers, LLC for construction management on Water Reclamation Facility Phase 3, with a term of 1,159 calendar days after the notice to proceed. View item
  • Odor and Corrosion Control Agreement: Chandler would extend its iron-salt odor and corrosion control agreement with US Peroxide LLC, which does business as USP Technologies, for six months — Sept. 21, 2026 through March 20, 2027 — with payments capped at $350,000. View item
  • Purchase of Activated Carbon for Wastewater Odor Control: The council would extend Chandler's activated carbon purchase agreement with Carbon Activated Corp by one year, Sept. 25, 2026 through Sept. 24, 2027, to control odors at the city's wastewater facilities. View item

Tempe City Council — October 15, 2026

  • Award a one-year contract, with four one-year renewal options, to Western Environmental Equipment Company to provide wastewater sampling services and flow monitoring equipment.: Tempe would award Western Environmental Equipment Company a one-year contract, with four one-year renewal options, for wastewater sampling services and flow monitoring equipment. The first year is capped at $700,000, paid from the Water and Wastewater Fund. View item
  • Approve a one-year contract renewal with Arizona Water Works Supply for the purchase of FEBCO backflow parts and assemblies.: Tempe would renew its one-year contract with Arizona Water Works Supply for FEBCO backflow parts and assemblies. View item
  • Award a Professional Services contract to Carollo Engineering, Inc. for Project No. 3203026B - Asset Maintenance - Butte Reservoirs.: Tempe would award a professional services contract to Carollo Engineering, Inc. for asset maintenance at the Butte Reservoirs (Project No. 3203026B). View item
  • Award a pre-construction contract to Felix Construction Company for Project No. 3205025D – Well Improvements Phase II – South Tempe Water Treatment Plant - Well 15.: Tempe would award Felix Construction Company a pre-construction contract for Well Improvements Phase II — Well 15 at the South Tempe Water Treatment Plant (Project No. 3205025D). View item
  • Adopt a resolution authorizing the Mayor to execute a five-year Intergovernmental Agreement (IGA) between the City of Avondale, City of Glendale, Town of Gilbert, City of Mesa, City of Peoria, City of Phoenix, Town of Queen Creek, Salt River Pima-Maricopa: Tempe would adopt Resolution No. R2026.125, authorizing the mayor to execute a five-year intergovernmental agreement with Avondale, Glendale, Gilbert, Mesa, Peoria, Phoenix, Queen Creek and the Salt River Pima-Maricopa Indian Community. The resolution and IGA attached to the item describe a waste collection and transportation mutual aid agreement. View item

Scottsdale City Council — October 20, 2026

  • Request for Executive Session to:: Scottsdale's council meets privately to weigh the city's position on buying water and on contracts tied to that purchase — all involving water in the Harquahala Valley. The closed session follows a public vote and is not open to the public. View item

Scottsdale City Council — October 20, 2026

  • Participation in Proposed Class Action Settlements: Scottsdale would join class-action settlements with Amerex, Archroma U.S., Carrier Global and Nation Ford Chemical over PFAS contamination of public drinking water. The settlements total $4 million, $14 million, at least $129.2 million and $1.875 million; the city must opt out by Dec. 22, 2026, and staff recommend adopting Resolution No. 13813 so the city can file claims. View item

Flagstaff City Council — October 20, 2026

  • Consideration and Adoption of Ordinance No. 2026-22:: Flagstaff would acquire the real property interests necessary for the Fanning Wash Culvert at Steves Blvd Project, with delegation of authority and later council approvals, under Ordinance No. 2026-22. View item
  • Consideration and Adoption of Ordinance No. 2026-28:: Flagstaff would rezone approximately 13.01 acres from Rural Residential with a partial Resource Protection Overlay to Single-Family Residential with the full Resource Protection Overlay (Ordinance No. 2026-28). View item