Grandview Mhp B, OH
Lead detected, under the action levels
Latest 90th-percentile lead: 0.7 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 Grandview Mhp B
Grandview Mhp B serves about 47 people through 33 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Knox County, Ohio. EPA system ID: OH4202112; phone on file: 740-412-3962. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2023 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Grandview Mhp B is 0.7 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.7 ppb |
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2017 | 0 (not detected) |
Where this result ranks
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. Grandview Mhp B's 0.7 ppb sits at the 50th percentile in Ohio and the 46th nationally (higher means more lead).
Neighbouring systems
8 other systems share Knox County; 3 of them have a higher latest lead result than Grandview Mhp B. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mount Vernon City Pws | 16,990 | 0 (not detected) |
| Knox County Water And Wastewater Pws | 8,250 | 2.09 ppb |
| Fredericktown Village | 2,648 | 1.8 ppb |
| Gambier Village Pws | 2,300 | 0 (not detected) |
| Danville Village Pws | 994 | 0 (not detected) |
| Martinsburg Village Pws | 240 | 0 (not detected) |
| Colonial Terrace Mhc Llc | 110 | 0.3 ppb |
| Grandview Mhp A Pws | 74 | 1 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Mount Vernon, 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 Grandview Mhp B 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. The action level is dropping - the 10 ppb rule from 2027.