Bunker Hill Water Association, MS
Lead detected, under the action levels
Latest 90th-percentile lead: 5.1 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.
Who runs the water here
Bunker Hill Water Association serves about 2,700 people through 1,190 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 Marion County, Mississippi. EPA system ID: MS0460001. Ask the utility on your bill for your address in their service line inventory.
Bunker Hill Water Association's lead record
That is up 5.1 ppb from 0 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Bunker Hill Water Association is 5.1 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 5.1 ppb |
| 2020 | 0 (not detected) |
| 2017 | 0.6 ppb |
How Bunker Hill Water Association compares
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. Bunker Hill Water Association's 5.1 ppb sits at the 95th percentile in Mississippi and the 91st nationally (higher means more lead).
Other water systems in Marion County
10 other systems share Marion County; 0 of them have a higher latest lead result than Bunker Hill 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 Columbia | 5,900 | 1.7 ppb |
| Hub Water Association | 3,260 | 0.5 ppb |
| Mt Gilead-Improve Water Assn | 2,416 | 0 (not detected) |
| Kokomo-Shiloh Water Assn. | 2,344 | 0.5 ppb |
| Lampton Water Association | 1,983 | 0.5 ppb |
| Highway 98 East Water Assn. | 1,632 | 0.5 ppb |
| West Marion Water Association | 1,571 | 0.5 ppb |
| Foxworth Water & Sewerage Assn | 710 | 1.8 ppb |
| Community Water Association | 320 | 1.5 ppb |
| Morgantown Water Association | 224 | 3.7 ppb |
Next steps for Columbia, MS
Test your own tap with a certified lab first-draw sample; Columbia, 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 Bunker Hill 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.