Big Valley Park Mhp, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 0.53 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.
Who runs the water here
Big Valley Park Mhp serves about 158 people through 63 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Newton County, Missouri. EPA system ID: MO5048225; phone on file: 417-499-1315. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Big Valley Park Mhp's lead record
That is down 12.37 ppb from 12.9 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Big Valley Park Mhp is 12.9 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.53 ppb |
| 2023 | 12.9 ppb over 10 |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
Where this result ranks
Of the 1,674 Missouri systems with a lead result, the median latest reading is 1.04 ppb; 2 are over 15 ppb right now and 74 have gone over at some point. Big Valley Park Mhp's 0.53 ppb sits at the 41st percentile in Missouri and the 44th nationally (higher means more lead).
Neighbouring systems
13 other systems share Newton County; 9 of them have a higher latest lead result than Big Valley Park Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Neosho Pws | 12,157 | 4.89 ppb |
| Seneca Pws | 2,390 | 2.07 ppb |
| Granby Pws | 2,034 | 2.38 ppb |
| Diamond Pws | 926 | 1.39 ppb |
| Newton Co Pwsd 1 | 450 | 0.69 ppb |
| Fairview Pws | 380 | 0 (not detected) |
| Redings Mill Pws | 163 | 4.4 ppb |
| Stella Pws | 158 | 2.9 ppb |
| Timberlost Mhp | 150 | 1.44 ppb |
| 43 Mobile Home & Rv Park | 137 | 2.81 ppb |
Next steps for Joplin, MO
Test your own tap with a certified lab first-draw sample; Joplin, MO 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 Big Valley Park Mhp 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.