Knight`S Landing S/D, AL
Above the federal action level
Latest 90th-percentile lead: 15.45 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. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Knight`S Landing S/D at a glance
Knight`S Landing S/D serves about 117 people through 46 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Guilford County, Alabama. EPA system ID: NC3041101; phone on file: 877-511-2911. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is up 15.45 ppb from 0 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Knight`S Landing S/D is 15.45 ppb across 5 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 15.45 ppb over 15 |
| 2022 | 0 (not detected) |
| 2018 | 1.5 ppb |
| 2018 | 0 (not detected) |
| 2017 | 3.5 ppb |
Where this result ranks
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. Knight`S Landing S/D's 15.45 ppb sits at the 100th percentile in Alabama and the 99th nationally (higher means more lead).
Nearby utilities
11 other systems share Guilford County; 0 of them have a higher latest lead result than Knight`S Landing S/D. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ashcroft Park | 175 | 0 (not detected) |
| Weatherstone @ Olde Forest S/D | 170 | 0 (not detected) |
| Shiloh Subdivision | 131 | 0 (not detected) |
| Thatcher Woods | 72 | 0 (not detected) |
| Kensington Place S/D | 61 | 0 (not detected) |
| Spencer`S Grove S/D | 59 | 0 (not detected) |
| Autumn Ridge S/D | 56 | 0 (not detected) |
| Carriage Way S/D | 51 | 0 (not detected) |
| Rachel`S Landing | 51 | 8 ppb |
| Carriage Cove S/D | 51 | 0 (not detected) |
Next steps for Birmingham, AL
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Knight`S Landing S/D 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.