Oak Grove Water Assn, MS
Lead detected, under the action levels
Latest 90th-percentile lead: 0.9 ppb (monitoring period 2021-2023). 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 Oak Grove Water Assn
Oak Grove Water Assn serves about 1,405 people through 530 service connections, which makes it a small system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Jones County, Mississippi. EPA system ID: MS0340011; phone on file: 601-477-9266. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Oak Grove Water Assn's lead record
Against the period ending 2017 (0.9 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Oak Grove Water Assn is 0.9 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0.9 ppb |
| 2017 | 0.9 ppb |
Where this result ranks
Of the 973 Mississippi systems with a lead result, the median latest reading is 1 ppb; 9 are over 15 ppb right now and 44 have gone over at some point. Oak Grove Water Assn's 0.9 ppb sits at the 44th percentile in Mississippi and the 49th nationally (higher means more lead).
Neighbouring systems
20 other systems share Jones County; 10 of them have a higher latest lead result than Oak Grove Water Assn. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Laurel | 18,100 | 1.4 ppb |
| Southwest Jones W/A-North | 6,690 | 2.4 ppb |
| Pleasant Ridge W/A | 5,808 | 1 ppb |
| City Of Ellisville | 4,600 | 8.2 ppb |
| J P Utility District | 3,839 | 1 ppb |
| Calhoun Water Association | 3,730 | 0 (not detected) |
| Glade Waterworks Assn | 3,340 | 0.7 ppb |
| Moselle Water Association | 3,002 | 0.67 ppb |
| M & M Water Association | 3,000 | 0.7 ppb |
| Sharon Water Works | 2,769 | 2.3 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Ellisville, MS 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 Oak Grove 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.