Holt County, MO

ZIP 64466

In ZIP 64466, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Maitland Pws has 1 contaminant at or over an EPA legal limit; 8 contaminants are above health goals, led by nitrite at 35× https://pmc.ncbi.nlm.nih.gov/articles/PMC4535738/.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Golden Triangle Energy LLC (68%), mostly acetaldehyde.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 221,812 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 64466

• Superfund sites nearbyA
• Factories and industrial sitesB
• Oil and gas wellsF
• Parks and nature nearbyD
• Air qualityB
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsF

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…