Greenfield Water Association, MS
Lead detected, under the action levels
Latest 90th-percentile lead: 1.5 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.
Greenfield Water Association at a glance
Greenfield Water Association serves about 6,088 people through 2,306 service connections, which makes it a medium-sized system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Rankin County, Mississippi. EPA system ID: MS0610011; phone on file: 601-825-7178. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 1.7 ppb from 3.2 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Greenfield Water Association is 3.2 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 1.5 ppb |
| 2020 | 3.2 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. Greenfield Water Association's 1.5 ppb sits at the 69th percentile in Mississippi and the 64th nationally (higher means more lead).
Other water systems in Rankin County
34 other systems share Rankin County; 19 of them have a higher latest lead result than Greenfield 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 Brandon | 31,852 | 1.6 ppb |
| City Of Flowood | 31,574 | 1.6 ppb |
| City Of Pearl | 27,115 | 1.2 ppb |
| Prvwsd-Pelahatchie Bay | 11,790 | 2 ppb |
| Fannin Water Assn-North | 7,690 | 2.7 ppb |
| City Of Richland | 7,000 | 0.7 ppb |
| Town Of Florence | 5,824 | 1.4 ppb |
| City Of Flowood - Noranco | 4,274 | 0.9 ppb |
| Langford Water Association | 4,013 | 1.8 ppb |
| Ms State Hospital-Whitfield | 3,950 | 2.4 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Pearl, 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 Greenfield 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.