Greene Hills Water Assn, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 1.11 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 Greene Hills Water Assn
Greene Hills Water Assn serves about 75 people through 31 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Greene County, Missouri. EPA system ID: MO5031115. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
That is up 1.11 ppb from 0 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Greene Hills Water Assn is 1.96 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.11 ppb |
| 2023 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2017 | 1.96 ppb |
Against other Missouri systems
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. Greene Hills Water Assn's 1.11 ppb sits at the 51st percentile in Missouri and the 58th nationally (higher means more lead).
Nearby utilities
28 other systems share Greene County; 14 of them have a higher latest lead result than Greene Hills Water Assn. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Utilities Of Springfield | 210,898 | 5.1 ppb |
| Republic Pws | 16,100 | 1.65 ppb |
| Greene County Pwsd 1 | 9,168 | 3.52 ppb |
| Willard Pws | 8,400 | 3.92 ppb |
| Strafford Pws | 2,600 | 0 (not detected) |
| Ash Grove Pws | 1,512 | 4.4 ppb |
| Greene County Pwsd 5 | 1,500 | 3.68 ppb |
| Walnut Grove Pws | 762 | 0 (not detected) |
| Greene County Pwsd 6 | 485 | 2.35 ppb |
| The Willows Utility Company | 315 | 0.99 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Willard, 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 Greene Hills Water Assn 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.