Shady Grove Water Association, 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 Shady Grove Water Association
Shady Grove Water Association serves about 1,233 people through 467 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 Tippah County, Mississippi. EPA system ID: MS0700021; phone on file: 662-512-2118. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2020 (1.9 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Shady Grove Water Association is 1.9 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0.9 ppb |
| 2020 | 1.9 ppb |
| 2017 | 1 ppb |
Against other Mississippi systems
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. Shady Grove Water Association's 0.9 ppb sits at the 44th percentile in Mississippi and the 49th nationally (higher means more lead).
Other water systems in Tippah County
11 other systems share Tippah County; 2 of them have a higher latest lead result than Shady Grove Water Association. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Ripley | 11,351 | 0.9 ppb |
| Town Of Falkner | 2,780 | 0 (not detected) |
| Dumas-Pine Grove Water Assn | 2,582 | 0.8 ppb |
| Town Of Blue Mountain | 2,049 | 0.5 ppb |
| Chalybeate Water Assn | 1,782 | 2.5 ppb |
| Town Of Walnut | 1,449 | 0.6 ppb |
| Tiplersville Water Association | 1,188 | 0 (not detected) |
| Three Forks Water Association | 1,185 | 1.1 ppb |
| Mitchell Water Association | 1,146 | 0 (not detected) |
| Spout Springs W/A | 607 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Ripley, 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 Shady Grove Water Association 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.