Pasco Water Department, WA
Lead detected, under the action levels
Latest 90th-percentile lead: 1.9 ppb (monitoring period 2021-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Pasco Water Department
Pasco Water Department serves about 115,102 people through 31,958 service connections, which makes it a very large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Franklin County, Washington. EPA system ID: WA5366400. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2020 (1.5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Pasco Water Department is 2 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 1.9 ppb |
| 2020 | 1.5 ppb |
| 2017 | 2 ppb |
Against other Washington systems
Of the 2,218 Washington systems with a lead result, the median latest reading is 1 ppb; 18 are over 15 ppb right now and 62 have gone over at some point. Pasco Water Department's 1.9 ppb sits at the 67th percentile in Washington and the 69th nationally (higher means more lead).
Nearby utilities
30 other systems share Franklin County; 2 of them have a higher latest lead result than Pasco Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Connell City Of | 5,150 | 1 ppb |
| Basin City Water Sewer District | 1,740 | 0 (not detected) |
| Mesa Water Department | 495 | 4.5 ppb |
| White Bluff Water Association | 386 | 0.2 ppb |
| Ringold Domestic Water Corp | 340 | 0 (not detected) |
| West Mesa Domestic Water Assn | 316 | 0 (not detected) |
| Kahlotus City Of | 262 | 0 (not detected) |
| Cypress Country Estates | 253 | 0 (not detected) |
| Clark Addition Water System | 189 | 0 (not detected) |
| West 15 Domestic Water Assn | 150 | 1.3 ppb |
Next steps for Pasco, WA
Test your own tap with a certified lab first-draw sample; Pasco, WA may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Pasco Water Department whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.