Guin Water & Sewer Board, AL
Lead detected, under the action levels
Latest 90th-percentile lead: 2.1 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.
Guin Water & Sewer Board at a glance
Guin Water & Sewer Board serves about 4,350 people through 1,450 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 surface water, in Marion County, Alabama. EPA system ID: AL0000924; phone on file: 205-712-8536. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 1.1 ppb from 3.2 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Guin Water & Sewer Board is 5 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.1 ppb |
| 2022 | 3.2 ppb |
| 2019 | 0 (not detected) |
| 2016 | 5 ppb |
How Guin Water & Sewer Board compares
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. Guin Water & Sewer Board's 2.1 ppb sits at the 86th percentile in Alabama and the 74th nationally (higher means more lead).
Nearby utilities
8 other systems share Marion County; 0 of them have a higher latest lead result than Guin Water & Sewer Board. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hamilton Water & Wastewater Department | 10,500 | 0 (not detected) |
| Winfield Water Works & Sewer Board | 8,631 | 0 (not detected) |
| Marion County Public Water Authority | 3,660 | 0 (not detected) |
| Bear Creek Water Works | 3,222 | 0 (not detected) |
| Hackleburg, Water & Sewer Board | 2,514 | 0 (not detected) |
| Brilliant, The Ub Of The Town Of | 1,590 | 0 (not detected) |
| Twin Water Authority | 804 | 0 (not detected) |
| Upper Bear Creek Ws & Fpd | - | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Guin, AL 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 Guin Water & Sewer Board 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.