Lead Pipe Map

California · 9 community water systems

Lead pipes in Contra Costa County, CA

9 community water systems serving Contra Costa County reported 0 lead and 0 galvanized-requiring-replacement service lines, plus 38 of unknown material.

0% of these systems' lines are lead or galvanized requiring replacement, lower than the California average (0.1%) and lower than the national average (3.1%).

0Lead
0Galvanized, replace
38Unknown
171,079Non-lead

Water systems serving Contra Costa County

Water systemLeadGalv.Unknown% leadPeople
Bella Vista Water SysContra Costa County00380%93
Contra Costa Water DistrictContra Costa County0000%210,500
City of AntiochAntioch0000%116,781
BrentwoodBrentwood0000%64,513
City of PittsburgPittsburg0000%62,500
Diablo Water DistrictContra Costa County0000%47,158
City of MartinezMartinez0000%31,015
Golden State Water Company - Bay PointContra Costa County0000%23,765
Town of Discovery BayContra Costa County0000%16,790

Systems that also serve other counties are counted in full. Your water bill names your utility.

What to do if your line is lead or unknown

  1. Check the pipe where water enters your home.
  2. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking.
  3. Test your water, often free through the utility.
  4. Ask your utility about free or discounted replacement; most lines must be replaced by December 31, 2037.

Check another water system

Questions

Does Contra Costa County have lead pipes?

No confirmed lead lines were reported, but 38 service lines are still of unknown material.

How do I check my home in Contra Costa County?

Find the water system named on your water bill in the table above, open its page and use its address-level inventory. You can also scratch-test the pipe where it enters your home.