Gowc South Monroe Ws, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 2 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.
Gowc South Monroe Ws at a glance
Gowc South Monroe Ws serves about 7,335 people through 2,445 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: LA1073046; phone on file: 318-322-3741. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2023 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Gowc South Monroe Ws is 5 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 2 ppb |
| 2023 | 1 ppb |
| 2023 | 1 ppb |
| 2020 | 5 ppb |
| 2017 | 2 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. Gowc South Monroe Ws's 2 ppb sits at the 81st percentile in Louisiana and the 73rd nationally (higher means more lead).
Nearby utilities
22 other systems share Ouachita Parish County; 4 of them have a higher latest lead result than Gowc South Monroe Ws. 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 Brownville Water System | 9,696 | 3 ppb |
| Gowc Kiroli Darbonne Ws | 9,210 | 0 (not detected) |
| Cadeville Water District | 6,219 | 2 ppb |
Next steps for West Monroe, LA
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 South Monroe Ws 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.