Lead Pipe Map

Arizona · population 68,927

Lead pipes in Casa Grande, AZ

12,746 lines still unidentified

Most of Casa Grande (population 68,927) gets its water from Arizona Water Co - Pinal Valley. It reported no confirmed lead service lines, but 12,746 of 40,711 lines are still listed as unknown material, so lead hasn't been ruled out.

0% of Arizona Water Co - Pinal Valley's service lines are lead or galvanized requiring replacement, lower than the Arizona average (0.1%) and lower than the national average (3.1%).

0Lead
0Galvanized, replace
12,746Unknown material
27,965Non-lead

Latest lead test for Arizona Water Co - Pinal Valley (Jan 2023–Dec 2025): not detected at the 90th percentile, against a 15 ppb federal action level. Full test history.

Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for Arizona Water Co - Pinal Valley.

Water systems serving Casa Grande

Water systemLeadGalv.Unknown% lead
Arizona Water Co - Pinal ValleyMain system0012,7460%
Picacho Water CompanyAlso serves parts of the city0000%
Arizona Water Co - Tierra GrandeAlso serves parts of the city002770%
Awc - Casa Grande West Water CompanyAlso serves parts of the city001150%
Arizona Water Co - StanfieldAlso serves parts of the city001560%
Awc - Casa Grande South Water CompanyAlso serves parts of the city00630%

Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.

Check your address in Casa Grande

The counts above cover the whole water system. To see whether your line is lead, look up your address on Arizona Water Co - Pinal Valley's official inventory. Utilities had to make these public by October 16, 2024.

Find the official inventory mapArizona Water Co - Pinal Valley details

No map yet? Do the 2-minute scratch and magnet test.

Protect your drinking water

If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.

Pitcher filtersCheapest start. Pick one certified to NSF/ANSI 53 for lead, such as Brita Elite, PUR Plus or ZeroWater.See pitchers Faucet-mount filtersFilters straight from the tap. Look for NSF/ANSI 53 lead reduction on the box.See faucet filters Under-sink systemsBest for families. Carbon block (NSF 53) or reverse osmosis (NSF 58) units rated for lead.See under-sink

Choosing a lead-certified filter · Testing your water · Replacement cost

Nearby cities

Check another water system

Questions

Does Casa Grande, AZ have lead pipes?

None are confirmed, but Arizona Water Co - Pinal Valley still lists 12,746 service lines as unknown material.

Who supplies water to Casa Grande?

EPA's service area maps place most of Casa Grande in Arizona Water Co - Pinal Valley's service area (PWSID AZ0411009). Picacho Water Company, Arizona Water Co - Tierra Grande, Awc - Casa Grande West Water Company, Arizona Water Co - Stanfield, Awc - Casa Grande South Water Company also serve parts of the city or nearby areas.

How do I check whether my Casa Grande home has a lead service line?

Search your address on Arizona Water Co - Pinal Valley's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.

When will lead pipes in Casa Grande be replaced?

EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Arizona Water Co - Pinal Valley whether your street is scheduled and whether it covers the private side.