Niles City Pws, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 1.01 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.
Niles City Pws at a glance
Niles City Pws serves about 21,961 people through 9,710 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Trumbull County, Ohio. EPA system ID: OH7802403; phone on file: 330-544-9000. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2025 (0.76 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Niles City Pws is 4 ppb across 11 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.01 ppb |
| 2025 | 0.76 ppb |
| 2025 | 1.01 ppb |
| 2024 | 0 (not detected) |
| 2024 | 0.38 ppb |
| 2023 | 1 ppb |
| 2023 | 1.23 ppb |
| 2022 | 1.49 ppb |
| 2022 | 4 ppb |
| 2020 | 0.58 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. Niles City Pws's 1.01 ppb sits at the 58th percentile in Ohio and the 56th nationally (higher means more lead).
Nearby utilities
24 other systems share Trumbull County; 4 of them have a higher latest lead result than Niles City Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Warren City Pws | 49,130 | 3.7 ppb |
| Girard City | 13,263 | 0 (not detected) |
| Trumbull Co. - Southeast Pws | 9,931 | 0 (not detected) |
| Hubbard City Pws | 8,362 | 4.3 ppb |
| Trumbull Co. - Bazetta/Champion | 8,270 | 0 (not detected) |
| Cortland City Pws | 7,105 | 0 (not detected) |
| Trumbull Co. - Howland Twp Pws | 6,396 | 0 (not detected) |
| Newton Falls City | 6,109 | 0 (not detected) |
| Mcdonald Village Pws | 4,236 | 0 (not detected) |
| Aqua Ohio - Masury | 4,019 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Niles, 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 Niles City Pws 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.