Kingston Water District, RI
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2024-2026). 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 Kingston Water District
Kingston Water District serves about 3,968 people through 1,092 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Washington County, Rhode Island. EPA system ID: RI1858421; phone on file: 401-783-5494. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Kingston Water District's lead record
That is down 1.9 ppb from 2.9 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Kingston Water District is 2.9 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1 ppb |
| 2023 | 2.9 ppb |
| 2020 | 1.8 ppb |
| 2019 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 1.7 ppb |
How Kingston Water District compares
Of the 78 Rhode Island systems with a lead result, the median latest reading is 1.1 ppb; 6 are over 15 ppb right now and 17 have gone over at some point. Kingston Water District's 1 ppb sits at the 47th percentile in Rhode Island and the 54th nationally (higher means more lead).
Neighbouring systems
32 other systems share Washington County; 17 of them have a higher latest lead result than Kingston Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Westerly Water Department | 35,298 | 3.6 ppb |
| North Kingstown Town Of | 27,732 | 1.3 ppb |
| Veolia Water Wakefield Rhode Island Inc | 21,225 | 3.2 ppb |
| University Of Rhode Island | 19,354 | 6.4 ppb |
| Block Island Water Company | 9,999 | 0 (not detected) |
| Narragansett Water System-Point Judith | 8,210 | 4.1 ppb |
| South Kingstown-South Shore | 6,170 | 1 ppb |
| Narragansett Water Dept-North End | 4,432 | 1.2 ppb |
| Richmond, Town Of | 2,671 | 0.3 ppb |
| South Kingstown-Middlebridge | 694 | 1 ppb |
Next steps for West Kingston, RI
Test your own tap with a certified lab first-draw sample; West Kingston, RI 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 Kingston Water District 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.