Baton Rouge Water Company, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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
Baton Rouge Water Company serves about 596,844 people through 198,948 service connections, which makes it a very large system under EPA's size classes. It is privately owned and draws groundwater, in East Baton Rouge Parish County, Louisiana. EPA system ID: LA1033005. Ask the utility on your bill for your address in their service line inventory.
Baton Rouge Water Company's lead record
Against the period ending 2022 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Baton Rouge Water Company is 2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2022 | 1 ppb |
| 2019 | 2 ppb |
| 2016 | 1 ppb |
Where this result ranks
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. Baton Rouge Water Company's 1 ppb sits at the 67th percentile in Louisiana and the 56th nationally (higher means more lead).
Other water systems in East Baton Rouge Parish County
4 other systems share East Baton Rouge Parish County; 0 of them have a higher latest lead result than Baton Rouge Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Zachary Water System | 31,569 | 0 (not detected) |
| City Of Baker Water System | 13,855 | 0 (not detected) |
| Audubon Park Apartments Water System | 534 | 0 (not detected) |
| J E S T C | 300 | 0 (not detected) |
Next steps for Baton Rouge, LA
Test your own tap with a certified lab first-draw sample; Baton Rouge, 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 Baton Rouge Water Company 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.