Zone 2 Water System Inc., LA
Lead detected, under the action levels
Latest 90th-percentile lead: 4.5 ppb (monitoring period 2023-2025). 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
Zone 2 Water System Inc. serves about 1,344 people through 448 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Grant Parish County, Louisiana. EPA system ID: LA1043001. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is up 2.5 ppb from 2 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Zone 2 Water System Inc. is 4.5 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 4.5 ppb |
| 2022 | 2 ppb |
| 2019 | 0 (not detected) |
| 2016 | 1 ppb |
How Zone 2 Water System Inc. compares
Of the 802 Louisiana systems with a lead result, the median latest reading is 0.72 ppb; 4 are over 15 ppb right now and 30 have gone over at some point. Zone 2 Water System Inc.'s 4.5 ppb sits at the 94th percentile in Louisiana and the 89th nationally (higher means more lead).
Other water systems in Grant Parish County
12 other systems share Grant Parish County; 1 of them has a higher latest lead result than Zone 2 Water System Inc.. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| South Grant Water Corporation | 5,289 | 1 ppb |
| Pollock Area Water System Inc | 3,900 | 1.2 ppb |
| West Grant Water Association | 3,324 | 3 ppb |
| Town Of Colfax | 2,552 | 2 ppb |
| Central Grant Water System | 2,250 | 0 (not detected) |
| Red Hill Waterworks Inc. | 1,914 | 1.3 ppb |
| Town Of Pollock Water System | 1,353 | 0 (not detected) |
| Village Of Montgomery Water System | 1,167 | 0 (not detected) |
| Village Of Dry Prong Water System | 1,155 | 6 ppb |
| Bob Community Waterworks | 732 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Colfax, LA 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 Zone 2 Water System Inc. 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.