Tri-County Rural W And S District, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 1.9 ppb (monitoring period 2026-2026). 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.
Who runs the water here
Tri-County Rural W And S District serves about 3,000 people through 1,544 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Washington County, Ohio. EPA system ID: OH8403112; phone on file: 740-984-2348. They can tell you what your service line is made of and whether they pay to replace it.
Tri-County Rural W And S District's lead record
That is down 1.3 ppb from 3.2 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Tri-County Rural W And S District is 3.2 ppb across 10 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.9 ppb |
| 2025 | 3.2 ppb |
| 2024 | 0.8 ppb |
| 2023 | 2.7 ppb |
| 2022 | 2.4 ppb |
| 2021 | 3.2 ppb |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 3.2 ppb |
| 2017 | 0 (not detected) |
Against other Ohio systems
Of the 1,079 Ohio systems with a lead result, the median latest reading is 0.7 ppb; 1 are over 15 ppb right now and 27 have gone over at some point. Tri-County Rural W And S District's 1.9 ppb sits at the 75th percentile in Ohio and the 69th nationally (higher means more lead).
Other water systems in Washington County
14 other systems share Washington County; 4 of them have a higher latest lead result than Tri-County Rural W And S District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Marietta City Pws | 18,707 | 0.7 ppb |
| Little Hocking Water Association, Inc. | 9,892 | 3 ppb |
| Warren Comm W And S Assn 2 | 7,215 | 1.5 ppb |
| Belpre City Pws | 6,441 | 1.7 ppb |
| Highland Ridge W And S Association Inc | 3,022 | 1.9 ppb |
| Putnam Community Water Association Pws | 2,744 | 6.65 ppb |
| Reno Water And Sewer 1 | 2,189 | 0.5 ppb |
| Beverly Village Pws | 1,900 | 1.7 ppb |
| Newport Water/Sewer District Pws | 1,582 | 2.4 ppb |
| Reno Water And Sewer 2 | 1,520 | 0.6 ppb |
Next steps for Waterford, OH
Test your own tap with a certified lab first-draw sample; Waterford, OH 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 Tri-County Rural W And S 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.