City Of Port Allen Water System, LA
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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
City Of Port Allen Water System serves about 6,759 people through 2,368 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in West Baton Rouge Parish County, Louisiana. EPA system ID: LA1121014; phone on file: 225-346-5670. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
City Of Port Allen Water System's lead record
Against the period ending 2023 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for City Of Port Allen Water System is 2 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1 ppb |
| 2023 | 0 (not detected) |
| 2020 | 1 ppb |
| 2017 | 2 ppb |
Against other Louisiana systems
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. City Of Port Allen Water System's 1 ppb sits at the 64th percentile in Louisiana and the 55th nationally (higher means more lead).
Other water systems in West Baton Rouge Parish County
4 other systems share West Baton Rouge Parish County; 0 of them have a higher latest lead result than City Of Port Allen Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| West Baton Rouge Water Works District 2 | 13,437 | 1 ppb |
| Wbr District 4 -Section Road Winterville | 5,571 | 0 (not detected) |
| Wbr Public Utilities | 4,329 | 0 (not detected) |
| Wbr District 4 - Arbroth | 555 | 0 (not detected) |
Next steps for Port Allen, LA
Test your own tap with a certified lab first-draw sample; Port Allen, 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 City Of Port Allen 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.