Lenexa Water Restrictions 2026
Johnson County · Kansas
Published:
Restrictions Active - Stage 1 Conservation Advisory – WaterOne Regional Special District
3
Days/Week
Before 10:00 AM
Allowed Hours
No fines at Stage 1 Advisory
Max Fine
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| Address Ending | Watering Day |
|---|---|
| Odd (voluntary) | Monday & Wednesday & Friday |
| Even (voluntary) | Tuesday & Thursday & Saturday |
Allowed Watering Hours
Lenexa is served by WaterOne (Water District No. 1 of Johnson County) – the same regional special district that serves Overland Park, Mission, Prairie Village, Shawnee, and others. WaterOne currently runs a voluntary Stage 1 Conservation Advisory; recommended best practice is the odd/even Monday-Wednesday-Friday / Tuesday-Thursday-Saturday schedule with a 10:00 AM to 6:00 PM mid-day blackout. Hand watering with a shut-off nozzle and drip irrigation are exempt. Verify current status at waterone.org.
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
No fines at Stage 1 Advisory
Stage 1 Conservation Advisory is voluntary – there are no per-violation fines at the current advisory level. Mandatory enforcement would activate only if WaterOne's board declares Stage 2 under the district's drought management plan.
Citations begin Statewide drought conditions active🏠 HOA Rules During Restrictions
Kansas state law does not include a statutory xeriscape right, but WaterOne's current advisory plus any future mandatory stage are 'applicable' under Kansas common law for HOA-supremacy purposes. Document the WaterOne advisory if your HOA sends a violation letter.
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 current restriction order from WaterOne. 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
Lenexa is served by WaterOne (Water District No. 1 of Johnson County) – the same regional special district that serves Overland Park, Mission, Prairie Village, Roeland Park, Shawnee, Westwood, and partial Olathe. The current Stage 1 voluntary advisory applies uniformly across all WaterOne member cities; if WaterOne escalates to Stage 2 mandatory, that escalation flows down to Lenexa addresses identically.
Source water: WaterOne's primary intake is the Missouri River at the Wolcott raw-water facility near Bonner Springs, Kansas. The district also draws supplemental supply from the Kansas River, blending the two surface waters at the WaterOne treatment plant before distribution. WaterOne is structurally distinct from Wichita's Cheney Reservoir + Equus Beds Aquifer framework and from Kansas City KS BPU's separate Nearman WTP + Quindaro intake.
Statewide context: Western Kansas has been under Drought Declaration Level 2 since September 2025 (Governor-issued, 42 counties – Johnson County is NOT among the declaration counties). The Ogallala Aquifer in western Kansas has declined 50+ feet since the 1950s. WaterOne's Missouri and Kansas River surface-water sources are not directly affected by Ogallala depletion.
Local context: Lenexa is known as 'The City of Lakes' for its multiple recreational lakes within city limits (Lenexa City Lake, Sar-Ko-Par Trails Park lake, others) – these lakes are recreational features fed by stormwater and groundwater, NOT used as city drinking-water sources. Lenexa's drinking water comes from the WaterOne Missouri River intake at Wolcott, the same as Overland Park. The Lenexa Public Market, Lenexa Civic Center campus, and the I-435 corporate parks (the long stretch of Class-A commercial real estate along Interstate 435) are major commercial water consumers on the WaterOne system.
This deficit has accumulated over the current water year and represents a significant departure from historical averages for the Lenexa area. Water supply reservoirs and aquifer levels are well below seasonal targets, necessitating mandatory conservation measures.
How to Keep Your Lawn Alive During Lenexa Water Restrictions
11 tips tailored for Lenexa homeowners during Stage 1 Conservation Advisory – WaterOne Regional Special District restrictions.
WaterOne (Water District No. 1 of Johnson County) sets your rules, NOT the City of Lenexa – check waterone.org for current status.
Lenexa's recreational lakes (City Lake, Sar-Ko-Par Trails) are NOT your water source – they are stormwater/groundwater fed for recreation. Your drinking water comes from the Missouri River at Wolcott.
Kentucky Bluegrass and tall fescue dominate Lenexa lawns; both handle 3-day-per-week voluntary schedules when watered deeply.
Cycle-and-soak on Johnson County's clay-loam soils: 8 minutes on, 30-minute pause, 8 minutes on – prevents runoff on clay.
Mulch ornamental beds 3 inches deep with arborist wood chips; JoCo summer evaporation losses are high without mulch.
Drip-irrigate trees, shrubs, and vegetable beds – exempt from any current or future day-of-week limits.
Audit sprinkler heads monthly for overspray onto sidewalks and driveways.
Skip scheduled cycles after 0.25 inch or greater rainfall in the prior 48 hours.
Convert parkway strips to Kansas natives (Buffalo Grass, Prairie Dropseed, Little Bluestem) – low-irrigation conversion targets.
WaterOne's smart-controller rebate covers up to $75 on WaterSense-certified units; apply at waterone.org.
Harvest rainwater off downspouts into rain barrels – Kansas law permits unlimited residential rooftop capture without permit.
Lenexa Water Restriction FAQs
What days can I water my lawn in Lenexa?
What hours can I run my sprinklers in Lenexa?
What are the fines for water violations in Lenexa?
Can I install new sod or seed in Lenexa during restrictions?
When will water restrictions end in Lenexa?
Lenexa City Lake is right here – why is my water from Missouri River?
Lenexa Public Market and the Civic Center campus – institutional accounts?
WaterOne rules in Lenexa vs Overland Park – anywhere they actually differ?
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