Westminster CO Water Restrictions 2026

Current water restrictions in Westminster, Colorado

Westminster is under a Drought Watch (Voluntary) restriction, encouraging residents to limit outdoor irrigation to no more than 3 days per week. The City of Westminster enacted this Drought Watch effective April 15, 2026, in response to worsening drought conditions across the Front Range and declining water supply reliability. Because this is a voluntary phase, there are no fines or mandatory schedules — but the city is urging residents to reduce consumption now to potentially avoid mandatory restrictions later.

The restriction was declared by the City of Westminster, which manages its own water utility serving roughly 115,000 residents in Adams and Jefferson counties. The voluntary guidelines ask homeowners to water no more than three days per week and to avoid irrigating between 10 a.m. and 6 p.m., when evaporation losses are highest. More information is available at cityofwestminster.us.

Statewide context makes this voluntary phase more significant: Colorado is experiencing Stage 1–4 drought conditions with widespread mandatory restrictions across the Front Range. Denver Water declared Stage 1 drought on March 25, 2026, and nearby Erie is under Level 4 Emergency with all irrigation prohibited. Westminster's voluntary approach currently stands in contrast to its neighbors, but conditions could escalate.

Practically speaking: yes, a resident can water their garden on a Wednesday morning under the current Drought Watch — provided it is before 10 a.m. and counts as one of their three voluntary watering days that week. There is no penalty for watering more often right now, but the city is explicitly asking residents not to. Treating this as a soft mandatory schedule is the most responsible approach given regional drought severity.

Your assigned watering schedule

Rule	Details
Days per week	3 (voluntary limit)
Day assignment	Voluntary — resident's choice, no address-based assignment currently
Allowed hours	Before 10 a.m. or after 6 p.m. recommended; midday watering discouraged
Hand watering	Exempt (shut-off nozzle required)
Drip irrigation	Exempt from day restrictions; early morning still preferred
New sod/seed	Usually a 30-day establishment window — register with City of Westminster for exemption

Because Westminster is currently in voluntary Drought Watch, there is no address-based odd/even or assigned-day schedule in force. Residents choose their own three days. If the city escalates to a mandatory Stage 1 or Stage 2 restriction, Westminster historically assigns watering days based on the last digit of the street address — odd addresses on certain days, even addresses on others — so it is worth checking cityofwestminster.us if conditions worsen.

Multi-family residential properties and commercial accounts are also asked to comply voluntarily with the three-day limit. Commercial irrigation controllers at apartment complexes, office parks, and retail centers along corridors like 104th Avenue and Sheridan Boulevard should be programmed to run no more than three days per week and only during exempt hours. Landscape contractors servicing commercial properties in Westminster are expected to adjust their schedules accordingly.

Westminster's elevation — roughly 5,280 feet — means soils dry out differently than at lower elevations, but the midday heat still drives significant evapotranspiration loss. Homeowners with honeylocust, Plains cottonwood, or Austrian pine — all common along Westminster's parkways and established neighborhoods — should prioritize slow, deep watering at the root zone for those trees on one of their three allowed days. Established trees often need less frequent but deeper watering than turf, and their survival through a drought year is far more valuable than maintaining green grass.

Fines and penalties

Offense	Penalty
First violation	None (voluntary phase — no enforcement)
Second violation	None (voluntary phase — no enforcement)
Mandatory stage violation (if escalated)	Fines apply per Westminster Water Shortage Ordinance; amounts set at escalation

During the current voluntary Drought Watch, the City of Westminster is not issuing fines or penalties for exceeding the three-day recommendation. Enforcement authority exists under Westminster's Water Shortage Emergency Ordinance and can be activated when the city formally escalates to a mandatory restriction stage. At that point, Westminster's code enforcement team has historically conducted both complaint-based inspections and proactive patrols of residential streets during prohibited irrigation hours. Westminster also utilizes metering data through its utility billing system to flag unusually high consumption accounts for outreach.

If Westminster does escalate to mandatory restrictions and a citation is issued, residents can request an administrative review through the Westminster Water Utility division. Documented exemptions — such as new sod establishment or drip irrigation systems — are considered mitigating factors. Response times for complaint-based reports during past mandatory stages have generally been within 2–5 business days for a first visit, according to city records.

Other outdoor water rules

Even during the voluntary Drought Watch, Westminster residents should be aware of the following additional outdoor water-use guidelines and permanent rules that apply regardless of drought phase:

• Car washing: Wash vehicles using a bucket or a hose with a shut-off nozzle only. Running an open hose on a driveway is discouraged at all drought phases and prohibited under mandatory stages. Commercial car washes that recycle water are the preferred alternative.
• Pressure washing: Pressure washing of driveways, patios, and siding is discouraged during the Drought Watch and restricted under mandatory stages. Consider dry sweeping driveways along Westminster's dusty Front Range corridors instead.
• Pool filling and topping off: Filling new pools is discouraged during the Drought Watch. Topping off existing pools to compensate for evaporation is generally permitted but should be minimized. Pool covers are strongly recommended to reduce evaporative loss, which is significant at Westminster's elevation and with the region's low relative humidity.
• Ornamental fountains: Non-recirculating decorative fountains should be turned off. Recirculating fountains are permitted.
• Landscape construction water: Water used for new landscape establishment should be minimized and the project registered with Westminster's water utility for the 30-day exemption window.
• Restaurant water service: Westminster follows Colorado's standard guidance that restaurants serve water only upon customer request during drought advisory periods.

Westminster's water supply and source

Westminster's water supply comes from a combination of South Platte River diversions, Big Dry Creek basin storage, and transmountain water imported through the Colorado-Big Thompson (CBT) Project, which delivers water from the Western Slope via the Adams Tunnel through the Continental Divide. Westminster holds CBT allotment units through the Northern Colorado Water Conservancy District, making it partially dependent on the same infrastructure that serves much of the northern Front Range.

Westminster's primary local surface water is treated at the Semper Water Treatment Plant, located in the city's southwest near Arvada. The Semper plant draws from Westminster's water rights on the South Platte River and from stored water in the city's portfolio of decreed water rights. Westminster also has interconnections with the Denver Water system, which draws from Dillon Reservoir on the Blue River, Gross Reservoir on South Boulder Creek, and Cheesman Reservoir on the South Platte — giving Westminster some supply redundancy during regional shortages.

Westminster's water rights portfolio includes senior agricultural water rights that have been converted to municipal use over decades of urban growth, primarily in the former agricultural areas of Adams County. These rights are administered by the Colorado Division of Water Resources under Colorado's prior appropriation doctrine — meaning during drought years, junior rights get curtailed first. The city's blend of CBT project water, direct South Platte diversions, and stored water gives it more supply flexibility than municipalities relying on a single source, but prolonged drought across the entire Colorado River and South Platte basins simultaneously — as in 2026 — stresses even a diversified portfolio.

Water delivered to Westminster homes is treated to federal Safe Drinking Water Act standards at the Semper plant before distribution through the city's pressurized transmission and distribution network.

HOA rules during water restrictions

Colorado Revised Statute CRS § 37-60-126 protects Westminster homeowners from HOA enforcement actions during officially declared drought restrictions. Under this statute, an HOA cannot fine a homeowner, threaten legal action, or place a lien on a property for having a brown or dormant lawn if the homeowner is complying with water restrictions or guidelines declared by their water provider — in this case, the City of Westminster's Drought Watch effective April 15, 2026.

During Westminster's current voluntary Drought Watch phase, the protection applies when a homeowner is voluntarily following the three-day limit. If your HOA sends a notice about lawn appearance, you have the right to respond citing CRS § 37-60-126 and the City of Westminster's declared Drought Watch. The protection also extends to any mandatory restriction stages Westminster may escalate to in the future.

Use the following template if your HOA contacts you about your lawn during the current Drought Watch:

"I am writing in response to your notice regarding my lawn appearance. The City of Westminster declared a Drought Watch effective April 15, 2026, recommending residents limit outdoor irrigation to three days per week. I am complying with these guidelines. Under Colorado Revised Statute § 37-60-126, an HOA may not impose fines or penalties on a homeowner who allows their lawn to go dormant in compliance with water restrictions or recommendations issued by their water provider. I respectfully request that this notice be rescinded and that no further action be taken."

Keep a copy of the city's Drought Watch announcement from cityofwestminster.us with your response as documentation.

Lawn survival guide for Westminster

Grass Type	Drought Tolerance	Min. Water Days/Week	Dormancy Option
Kentucky Bluegrass	Low–Moderate	2–3	Yes — recovers well
Tall Fescue	Moderate	2	Yes — deeper roots help
Buffalograss	High	1 or less	Yes — native, very resilient
Blue Grama	Very High	1 or less	Yes — native to Front Range

Westminster lawns are predominantly Kentucky Bluegrass, which was the default seed mix for decades of suburban development in Adams and Jefferson counties. Kentucky Bluegrass looks lush but is the most water-intensive grass on the above list — it will go dormant and turn brown under three-day voluntary restrictions during hot stretches in July and August. This is normal and not a death sentence. A healthy Kentucky Bluegrass lawn can survive 4–6 weeks of dormancy and recover when watering resumes or temperatures drop in late August. Mow at 3 to 3.5 inches to reduce heat stress and shade the soil — lower mowing heights common in lawn-care culture will accelerate moisture loss at Westminster's altitude.

If you have the option to overseed or renovate, Buffalograss and Blue Grama are both native to the shortgrass prairie ecosystem that Westminster sits within and can survive on rainfall alone in most years. Westminster's water utility has at times offered turf conversion rebate incentives to encourage replacing Kentucky Bluegrass with low-water natives or xeriscape — check the current program availability at cityofwestminster.us. For Tall Fescue yards, water deeply 2 days per week and allow the soil to dry between cycles rather than shallow-watering more frequently; Fescue's deeper root system rewards infrequent, thorough irrigation.

Frequently asked questions

What days can I water my lawn in Westminster right now?

Under the current voluntary Drought Watch declared by the City of Westminster on April 15, 2026, you can choose any three days per week — there is no assigned schedule based on your address. The city recommends watering only before 10 a.m. or after 6 p.m. to reduce evaporation. If Westminster escalates to a mandatory restriction stage, address-based day assignments would likely be activated, so check cityofwestminster.us for updates.

Can I water my garden on a weekday morning in Westminster?

Yes. A Wednesday morning watering before 10 a.m. is fully consistent with Westminster's Drought Watch guidelines. Garden beds, vegetable gardens, and landscape plantings follow the same three-day voluntary limit as turf irrigation. Using drip irrigation or soaker hoses for garden beds is exempt from the day count entirely and is the most efficient method available.

Are there fines for watering more than 3 days a week in Westminster?

No — not under the current voluntary Drought Watch phase. The City of Westminster has not activated its mandatory restriction enforcement authority as of the April 15, 2026 declaration. If the city escalates to a mandatory stage, fines under Westminster's Water Shortage Emergency Ordinance would take effect and would be communicated through the city's utility billing notices and website.

Does Westminster use smart meters to monitor water use during drought?

Westminster's water utility has deployed automated meter infrastructure (AMI) that allows the city to monitor consumption data more frequently than traditional monthly reads. During mandatory restriction periods in past drought years, high-use accounts have been flagged for follow-up outreach based on meter data. Under the current voluntary phase, this data is used for conservation outreach rather than enforcement. Residents can also use billing data to track their own usage and identify irrigation inefficiencies.

Does Westminster offer rebates for replacing my lawn with xeriscape or native plants?

Westminster has offered turf replacement and xeriscape conversion rebate programs through its water utility in past drought cycles, and the current Front Range drought conditions make it likely that such programs are active or being expanded. Contact Westminster's water conservation office directly through cityofwestminster.us to ask about current per-square-foot turf removal rebates, smart controller rebates, and any available rebates for converting to drip irrigation. Northern Colorado Water Conservancy District and the Colorado Water Conservation Board also administer statewide programs that Westminster residents may qualify for.

My HOA is threatening to fine me for a brown lawn — what are my rights in Westminster?

You are protected under Colorado Revised Statute CRS § 37-60-126. Because Westminster has declared a Drought Watch, your HOA cannot legally fine you or take enforcement action for a dormant or brown lawn if you are complying with the city's watering guidelines. Send your HOA a written response citing this statute and referencing Westminster's Drought Watch declaration of April 15, 2026. Keep documentation of the city's announcement as backup.

Is Westminster likely to escalate to mandatory restrictions?

Given the regional context — Denver Water at Stage 1 drought, Erie at Level 4 emergency, and Eagle River at Stage 3 — the Front Range drought in 2026 is serious. Westminster's current voluntary phase reflects its diversified water portfolio, including Colorado-Big Thompson Project allotments and South Platte River rights, which provide some buffer. However, if the summer of 2026 is hot and dry, escalation to Stage 1 or Stage 2 mandatory restrictions is a real possibility. Monitoring the City of Westminster's website and signing up for utility alerts is the best way to stay informed before a mandatory stage takes effect.

Can I fill or top off my pool during Westminster's Drought Watch?

Topping off an existing pool to replace evaporation loss is currently permitted under the voluntary Drought Watch — Westminster has not restricted pool water use in this phase. However, the city discourages filling new pools from scratch during the Watch. Using a pool cover is strongly recommended: at Westminster's altitude and with the Front Range's characteristically low humidity, an uncovered pool can lose several inches of water per week to evaporation during summer months, which adds up quickly on a water bill and on the regional supply system.

What time can I water in Westminster?

Watering is allowed Not 10am-6pm recommended. Watering outside these hours is a violation even on your assigned day.

When will water restrictions end in Westminster?

Current Drought Watch (Voluntary) restrictions are in effect through Until conditions improve. Monitor https://www.cityofwestminster.us for the latest status.

Can I hand water during Westminster water restrictions?

Yes. Hand watering with a hose fitted with a shut-off nozzle is generally allowed on any day during permitted hours. Drip irrigation and soaker hoses are also typically exempt from the day-of-week schedule. Confirm specifics with City of Westminster.

How do I report a water waste violation in Westminster?

Contact City of Westminster or visit https://www.cityofwestminster.us. Most utilities accept online reports and respond within 48 hours.