New Life Ranch, Flint Valley, OK
Exceeded the action level in the past
Latest 90th-percentile lead: 0.7 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
New Life Ranch, Flint Valley at a glance
New Life Ranch, Flint Valley serves about 35 people through 38 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Delaware County, Oklahoma. EPA system ID: OK2002151; phone on file: 918-422-5506. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2025 (1.4 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for New Life Ranch, Flint Valley is 21.4 ppb across 11 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.7 ppb |
| 2025 | 1.4 ppb |
| 2024 | 0 (not detected) |
| 2023 | 7.2 ppb |
| 2022 | 0 (not detected) |
| 2021 | 2 ppb |
| 2021 | 2 ppb |
| 2020 | 21.4 ppb over 15 |
| 2019 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 0 (not detected) |
How New Life Ranch, Flint Valley compares
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. New Life Ranch, Flint Valley's 0.7 ppb sits at the 49th percentile in Oklahoma and the 46th nationally (higher means more lead).
Neighbouring systems
25 other systems share Delaware County; 10 of them have a higher latest lead result than New Life Ranch, Flint Valley. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Grove Municipal Services Auth. | 7,311 | 9.3 ppb |
| Grand Lake Pwa | 2,800 | 3.1 ppb |
| Jay | 2,482 | 0 (not detected) |
| Ketchum Pwa Delaware Co System | 1,805 | 2.3 ppb |
| South Delaware Co Regional Water Auth. | 1,500 | 1.8 ppb |
| Delaware Co Rwd #10 | 1,295 | 1.2 ppb |
| West Siloam Springs | 877 | 1.4 ppb |
| Colcord Pwa | 819 | 0 (not detected) |
| Kansas Public Works Authority | 802 | 0 (not detected) |
| Delaware Co Rwd # 12 | 785 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Colcord, 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 New Life Ranch, Flint Valley 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. Why an old exceedance still matters: over the limit before, under it now.