City Of Mission, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 1.83 ppb (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. 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
City Of Mission serves about 77,058 people through 29,994 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 surface water, in Hidalgo County, Texas. EPA system ID: TX1080008; phone on file: 956-580-8662. 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 1.83 ppb from 0 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for City Of Mission is 1.83 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1.83 ppb |
| 2023 | 0 (not detected) |
| 2020 | 1.4 ppb |
| 2017 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 1.2 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. City Of Mission's 1.83 ppb sits at the 80th percentile in Texas and the 68th nationally (higher means more lead).
Neighbouring systems
23 other systems share Hidalgo County; 3 of them have a higher latest lead result than City Of Mission. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| North Alamo Wsc | 171,195 | 0.32 ppb |
| Mcallen Public Utility | 145,050 | 2.3 ppb |
| City Of Edinburg | 85,224 | 0 (not detected) |
| City Of Pharr | 79,715 | 1.09 ppb |
| Sharyland Wsc | 68,562 | 1 ppb |
| Agua Sud | 53,796 | 1 ppb |
| City Of Weslaco | 40,033 | 1.5 ppb |
| City Of San Juan | 30,000 | 0 (not detected) |
| City Of Alamo | 21,065 | 1 ppb |
| City Of Donna | 18,720 | 1.4 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Mission, 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 City Of Mission 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. The action level is dropping - the 10 ppb rule from 2027.