Gowc Brownville Water System, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 3 ppb (monitoring period 2024-2026). 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
Gowc Brownville Water System serves about 9,696 people through 3,232 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Ouachita Parish County, Louisiana. EPA system ID: LA1073004; phone on file: 318-322-3741. They can tell you what your service line is made of and whether they pay to replace it.
Gowc Brownville Water System's lead record
Against the period ending 2023 (2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Gowc Brownville Water System is 14 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 3 ppb |
| 2023 | 2 ppb |
| 2020 | 4 ppb |
| 2017 | 14 ppb over 10 |
How Gowc Brownville Water System 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. Gowc Brownville Water System's 3 ppb sits at the 90th percentile in Louisiana and the 83rd nationally (higher means more lead).
Nearby utilities
22 other systems share Ouachita Parish County; 1 of them has a higher latest lead result than Gowc Brownville Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Monroe Water System | 57,000 | 0 (not detected) |
| City Of West Monroe Water System | 16,005 | 1 ppb |
| Gowc West Hwy 80 Ark Road Ws | 14,649 | 2 ppb |
| Gowc North Water System | 13,287 | 1 ppb |
| Gowc East Water System | 11,742 | 1 ppb |
| Cheniere Drew North Water System | 11,280 | 0 (not detected) |
| Southwest Ouachita Waterworks, Inc | 10,725 | 3 ppb |
| Gowc Kiroli Darbonne Ws | 9,210 | 0 (not detected) |
| Gowc South Monroe Ws | 7,335 | 2 ppb |
| Cadeville Water District | 6,219 | 2 ppb |
Your move
Test your own tap with a certified lab first-draw sample; West Monroe, 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 Gowc Brownville Water System 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. Size matters more than most people expect: small vs large water systems.