City Of Marion, TX
Lead detected, under the action levels
Latest 90th-percentile lead: 5 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.
City Of Marion at a glance
City Of Marion serves about 1,971 people through 657 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Guadalupe County, Texas. EPA system ID: TX0940001; phone on file: 830-914-2391. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is up 4 ppb from 1 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for City Of Marion is 5 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 5 ppb |
| 2022 | 1 ppb |
Against other Texas systems
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 Marion's 5 ppb sits at the 97th percentile in Texas and the 91st nationally (higher means more lead).
Other water systems in Guadalupe County
13 other systems share Guadalupe County; 0 of them have a higher latest lead result than City Of Marion. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Green Valley Sud | 52,497 | 1.8 ppb |
| City Of Schertz | 41,948 | 0 (not detected) |
| Springs Hill Sud | 35,541 | 1.12 ppb |
| City Of Seguin | 32,736 | 1.45 ppb |
| Crystal Clear Sud | 20,766 | 1.6 ppb |
| City Of Cibolo | 20,331 | 1.1 ppb |
| Garden Oaks | 309 | 0 (not detected) |
| Shady Meadows Mobile Home Park | 64 | 0 (not detected) |
| Lago Vista Water System | 54 | 0 (not detected) |
| Memory Lane Mhp | 30 | 1 ppb |
Next steps for Marion, TX
Test your own tap with a certified lab first-draw sample; Marion, 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 Marion 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. Systems that went over once often dip back under; here is what that means.