Northampton Mud, TX
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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.
Northampton Mud at a glance
Northampton Mud serves about 12,162 people through 4,054 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Harris County, Texas. EPA system ID: TX1010337; phone on file: 281-376-8916. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 1.87 ppb from 1.87 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Northampton Mud is 1.87 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 1.87 ppb |
| 2021 | 1.35 ppb |
| 2019 | 1.28 ppb |
| 2016 | 1 ppb |
Where this result ranks
Of the 4,447 Texas systems with a lead result, the median latest reading is 0.28 ppb; 15 are over 15 ppb right now and 202 have gone over at some point. Northampton Mud's reported as 0 (not detected) sits at the 47th percentile in Texas and the 37th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
690 other systems share Harris County; 373 of them have a higher latest lead result than Northampton Mud. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Houston | 2,970,543 | 5 ppb |
| City Of Pasadena | 152,000 | 3.72 ppb |
| Clear Lake City Water Authority | 89,702 | 0.88 ppb |
| City Of Baytown | 86,004 | 2.1 ppb |
| City Of Houston Ud 5 - Kingwood | 80,073 | 0.51 ppb |
| Harris County Mud 165 | 40,503 | 1.3 ppb |
| City Of La Porte | 36,569 | 2.35 ppb |
| City Of Deer Park | 34,495 | 0 (not detected) |
| Northwest Harris County Mud 5 | 25,425 | 0 (not detected) |
| City Of Katy | 25,253 | 2.7 ppb |
Next steps for Houston, TX
Look up your address in Northampton Mud'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 Northampton Mud 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. Small systems behave differently: why small systems go over more often.