Columbia Heights Water District, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 2.8 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.
Columbia Heights Water District at a glance
Columbia Heights Water District serves about 1,965 people through 655 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Caldwell Parish County, Louisiana. EPA system ID: LA1021003; phone on file: 318-649-5852. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
Against the period ending 2022 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Columbia Heights Water District is 2.8 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.8 ppb |
| 2022 | 2 ppb |
| 2019 | 2 ppb |
| 2016 | 2 ppb |
How Columbia Heights Water District 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. Columbia Heights Water District's 2.8 ppb sits at the 86th percentile in Louisiana and the 80th nationally (higher means more lead).
Other water systems in Caldwell Parish County
10 other systems share Caldwell Parish County; 1 of them has a higher latest lead result than Columbia Heights Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hebert Water System | 3,048 | 0 (not detected) |
| East Columbia Water System | 2,829 | 0 (not detected) |
| Village Of Grayson Water System | 1,461 | 0.81 ppb |
| Kelly Water District | 1,314 | 0.86 ppb |
| Holum Water System | 1,230 | 1 ppb |
| Wards 4 & 5 Water System | 1,002 | 5 ppb |
| Village Of Columbia Water System | 945 | 0 (not detected) |
| Town Of Clarks Water System | 906 | 0 (not detected) |
| Cotton Plant Water System | 783 | 0 (not detected) |
| Vixen Water System | 750 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Columbia, 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 Columbia Heights Water District 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. The action level is dropping - the 10 ppb rule from 2027.