Riverside Harbor, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 0.73 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.
Who runs the water here
Riverside Harbor serves about 363 people through 121 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Walker County, Texas. EPA system ID: TX2360014; phone on file: 936-327-3107. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Riverside Harbor is 0.73 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.73 ppb |
| 2022 | 0 (not detected) |
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. Riverside Harbor's 0.73 ppb sits at the 58th percentile in Texas and the 47th nationally (higher means more lead).
Nearby utilities
21 other systems share Walker County; 7 of them have a higher latest lead result than Riverside Harbor. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Huntsville | 48,522 | 2.03 ppb |
| Riverside Sud | 6,246 | 0 (not detected) |
| Walker County Sud D | 2,184 | 0 (not detected) |
| Phelps Sud | 1,900 | 2.6 ppb |
| Walker County Sud B Crabbs Prairie | 1,815 | 0 (not detected) |
| Walker County Sud C | 1,674 | 0 (not detected) |
| Walker County Sud A | 1,458 | 0 (not detected) |
| City Of New Waverly | 1,125 | 0 (not detected) |
| Wildwood Shores | 968 | 0 (not detected) |
| Texas Grand Ranch | 783 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Livingston, TX 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 Riverside Harbor 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.