Great Plains Development Authority, KS
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2022-2024). 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.
About Great Plains Development Authority
Great Plains Development Authority serves about 182 people through 9 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Labette County, Kansas. EPA system ID: KS2009911; phone on file: 620-421-1228. 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 2021 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Great Plains Development Authority is 28.5 ppb across 9 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 1.6 ppb |
| 2018 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 2.3 ppb |
| 2017 | 2.7 ppb |
| 2016 | 28.5 ppb over 15 |
Where this result ranks
Of the 832 Kansas systems with a lead result, the median latest reading is 1.4 ppb; 2 are over 15 ppb right now and 35 have gone over at some point. Great Plains Development Authority's reported as 0 (not detected) sits at the 7th percentile in Kansas and the 14th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
14 other systems share Labette County; 4 of them have a higher latest lead result than Great Plains Development Authority. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Parsons, City Of | 9,479 | 3.2 ppb |
| Oswego, City Of | 1,680 | 3.2 ppb |
| Labette Co Rwd 5 | 1,635 | 0 (not detected) |
| Labette Co Rwd 6 | 1,550 | 10 ppb |
| Labette Co Rwd 8 | 1,063 | 0 (not detected) |
| Altamont, City Of | 1,044 | 0 (not detected) |
| Chetopa, City Of | 921 | 0 (not detected) |
| Labette Co Rwd 7 | 540 | 4 ppb |
| Labette Co Rwd 3 | 420 | 0 (not detected) |
| Edna, City Of | 383 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Parsons, KS 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 Great Plains Development 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. More in what a past exceedance means today.