Gulf Park, MO
Lead detected, under the action levels
Latest 90th-percentile lead: 1.3 ppb (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. 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.
About Gulf Park
Gulf Park serves about 4,813 people through 1,823 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Jackson County, Missouri. EPA system ID: MS0300044; phone on file: 314-736-4743. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2021 (0.5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Gulf Park is 1.3 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1.3 ppb |
| 2021 | 0.5 ppb |
| 2018 | 0.5 ppb |
| 2016 | 0.9 ppb |
How Gulf Park compares
Of the 1,674 Missouri systems with a lead result, the median latest reading is 1.04 ppb; 2 are over 15 ppb right now and 74 have gone over at some point. Gulf Park's 1.3 ppb sits at the 57th percentile in Missouri and the 61st nationally (higher means more lead).
Other water systems in Jackson County
27 other systems share Jackson County; 6 of them have a higher latest lead result than Gulf Park. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Independence Pws | 120,000 | 1.1 ppb |
| Lees Summit Pws | 99,400 | 0 (not detected) |
| Blue Springs Pws | 61,084 | 2.81 ppb |
| Jackson County Pwsd 1 | 24,500 | 3.45 ppb |
| Raytown Water Company | 17,066 | 0 (not detected) |
| Jackson County Pwsd 2 | 16,440 | 0 (not detected) |
| Grain Valley Pws | 16,000 | 0 (not detected) |
| Jackson County Pwsd 13 | 9,700 | 1.54 ppb |
| Oak Grove Pws | 9,200 | 0 (not detected) |
| Jackson County Pwsd 15 | 8,772 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Des Peres, MO 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 Gulf Park 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.