Durant Utilities Authority, OK
Lead detected, under the action levels
Latest 90th-percentile lead: 3.11 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.
Durant Utilities Authority at a glance
Durant Utilities Authority serves about 15,545 people through 7,538 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 Bryan County, Oklahoma. EPA system ID: OK1010601; phone on file: 580-931-6664. They can tell you what your service line is made of and whether they pay to replace it.
Durant Utilities Authority's lead record
That is up 2.32 ppb from 0.79 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Durant Utilities Authority is 3.11 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3.11 ppb |
| 2022 | 0.79 ppb |
| 2019 | 1.25 ppb |
| 2016 | 1.12 ppb |
Against other Oklahoma systems
Of the 870 Oklahoma systems with a lead result, the median latest reading is 0.81 ppb; 6 are over 15 ppb right now and 66 have gone over at some point. Durant Utilities Authority's 3.11 ppb sits at the 86th percentile in Oklahoma and the 83rd nationally (higher means more lead).
Nearby utilities
12 other systems share Bryan County; 2 of them have a higher latest lead result than Durant Utilities Authority. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bryan County Rural Water District #5 | 8,325 | 0.56 ppb |
| Bryan Co. Rws & Swmd #2 | 6,270 | 0.56 ppb |
| Calera Pwa | 2,815 | 0.83 ppb |
| Colbert Pua | 2,312 | 4.42 ppb |
| Bryan Co. Rwd #6 | 990 | 0 (not detected) |
| Caddo | 944 | 0.55 ppb |
| Bryan Co. Rwd #9 | 820 | 0 (not detected) |
| Bokchito | 564 | 0 (not detected) |
| Achille | 506 | 0 (not detected) |
| Bryan Co. Rwd #7 | 302 | 5.6 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Durant, OK 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 Durant Utilities Authority 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.