St. Louis Water Restrictions 2026
St. Louis City + County · Missouri
Published:
Restrictions Active - Permanent Seasonal Odd/Even (May–September)
2
Days/Week
Before 10:00 AM
Allowed Hours
$50 first · $100 second
Max Fine
Find Your Watering Day
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| Address Ending | Watering Day |
|---|---|
| Odd | Tuesday & Saturday |
| Even | Wednesday & Sunday |
Allowed Watering Hours
No outdoor irrigation between 10:00 AM and 6:00 PM from May 1 through September 30.
Still Allowed
💧 Hand Watering
Allowed with shut-off nozzle. Hours: Any day with a shut-off nozzle.
🌿 Drip Irrigation
Exempt from day-of-week limits. Must follow allowed hours.
Fines & Enforcement
$50 first · $100 second
Missouri American Water issues $50 first-offense citations and $100 for second within 12 months.
Citations begin May 1 (annual seasonal) · permanent🏠 HOA Rules During Restrictions
Missouri HOA law requires acceptance of municipal ordinances.
If your homeowners association sends a violation notice for a dormant or brown lawn during the current restriction period, respond in writing citing the applicable law and include a copy of the Missouri American Water's current restriction order. Most HOAs will rescind the notice once they are made aware of the legal protections in place. If the issue persists, contact your county’s code enforcement division for assistance.
Why These Restrictions Exist
Missouri American Water serves 500,000 customers from the Missouri and Meramec rivers. Missouri River flows at 82% of normal. St. Louis County in D1 Moderate Drought.
This deficit has accumulated over the current water year and represents a significant departure from historical averages for the St. Louis area. Water supply reservoirs and aquifer levels are well below seasonal targets, necessitating mandatory conservation measures.
How to Keep Your Lawn Alive During St. Louis Water Restrictions
11 tips tailored for St. Louis homeowners during Permanent Seasonal Odd/Even (May–September) restrictions.
Kentucky Bluegrass, tall fescue, and Zoysia all common in St. Louis lawns.
Mow to 3.5 inches.
MAW smart controller rebates cover $40.
Replace parkway strips with Missouri natives, Purple Coneflower, Missouri Goldenrod.
Drip-irrigate vegetable beds.
Fix leaks within 48 hours.
Convert overhead spray to rotary nozzles.
Skip cycles after any 0.25"+ rainfall.
Harvest rainwater.
Group plants by hydrozone.
Track monthly use at amwater.com/mo.
St. Louis Water Restriction FAQs
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