West Dallas Water Authority, AL
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About West Dallas Water Authority
West Dallas Water Authority serves about 3,747 people through 1,249 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 Dallas County, Alabama. EPA system ID: AL0000491; phone on file: 334-875-5607. They can tell you what your service line is made of and whether they pay to replace it.
West Dallas Water Authority's lead record
Against the period ending 2026 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for West Dallas Water Authority is 5 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2026 | 0 (not detected) |
| 2023 | 2.8 ppb |
| 2023 | 2.8 ppb |
| 2020 | 2.1 ppb |
| 2020 | 2.1 ppb |
| 2017 | 5 ppb |
Against other Alabama systems
Of the 542 Alabama systems with a lead result, the median latest reading is 0 ppb; 1 are over 15 ppb right now and 11 have gone over at some point. West Dallas Water Authority's reported as 0 (not detected) sits at the 27th percentile in Alabama and the 34th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
5 other systems share Dallas County; 3 of them have a higher latest lead result than West Dallas Water Authority. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Selma, The Ww And Sb Of The City Of | 21,834 | 0 (not detected) |
| North Dallas County Water Authority | 8,838 | 0.1 ppb |
| Dallas County Water & Sewer Authority | 4,152 | 1.3 ppb |
| South Dallas Water Authority | 3,504 | 5.1 ppb |
| Orrville Water Department, Town Of | 435 | 0 (not detected) |
What to do in your house
Look up your address in West Dallas Water Authority's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask West Dallas Water Authority 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. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.