Northglenn CO Water Restrictions 2026

Current water restrictions in Northglenn, Colorado

Northglenn is currently under Stage 2 mandatory water restrictions, limiting all outdoor irrigation to two assigned days per week. The City of Northglenn issued these restrictions in response to drought conditions affecting the broader Front Range region, and compliance is required — not optional — for all residential, commercial, and institutional water customers within city limits.

The Stage 2 designation reflects a meaningful escalation in drought response. Stage 1 typically involves voluntary conservation; Stage 2 triggers enforceable schedules with real penalties for non-compliance. The City of Northglenn administers water services directly and holds authority to enforce these restrictions through its utilities department. Residents can find official updates at northglenn.org.

Colorado is experiencing a state-level drought emergency, with mandatory restrictions now covering more than 20 Front Range communities. Erie has reached Level 4 Emergency with all irrigation prohibited, Denver Water declared Stage 1 on March 25, and Eagle River is under Stage 3 — placing Northglenn squarely in the middle of a regional water crisis with no near-term resolution date. Northglenn's restrictions remain in effect until conditions improve, with no set expiration.

Practically speaking: no, a resident cannot simply water their garden on a Wednesday morning unless Wednesday is one of their two assigned days — and even then, watering must not occur between 10 a.m. and 6 p.m. Running a sprinkler outside those assigned days, or during prohibited midday hours, constitutes a violation. Stage 2 means your watering calendar is now set by the city, not personal preference.

Your assigned watering schedule

Under Stage 2, Northglenn assigns watering days based on your property address — typically even-numbered addresses water on different days than odd-numbered addresses, with a possible mid-week off day built in. Residents should confirm their specific assigned days directly with the City of Northglenn utilities department or on the city website, as day pairings can shift between stages. The key constraint beyond day assignment is the 10 a.m. to 6 p.m. blackout window, which applies every day regardless of whether it is your assigned watering day.

Multi-family properties — apartment complexes and HOA-managed communities — fall under the same two-day limit, but property managers are responsible for ensuring shared irrigation systems comply. Commercial properties are subject to identical day and hour restrictions. Facilities with large turf areas, such as sports fields or business campuses, should contact the City of Northglenn utilities department directly if they believe a variance is warranted; variances are not automatic under Stage 2.

Three trees common to Northglenn yards deserve special attention during restriction periods: Colorado Blue Spruce, Autumn Blaze Maple, and Plains Cottonwood. All three are susceptible to drought stress when irrigation drops sharply. Hand watering with a shut-off nozzle directed at root zones remains exempt from the day-based schedule, which means you can supplement tree irrigation on non-watering days without violating Stage 2 rules — provided you use a hand-held hose with an automatic shutoff.

Fines and penalties

Northglenn's enforcement approach starts with a warning on first contact — inspectors or responding staff will document the violation and issue written notice rather than an immediate fine. This gives residents a one-time opportunity to correct behavior before financial penalties apply. Second and subsequent violations carry actual fines, and the city retains authority to escalate penalties for persistent non-compliance, potentially including service-level actions for egregious or repeated offenders.

Enforcement in Northglenn relies on a combination of utility staff patrols and neighbor complaints. Because Northglenn is a mid-size Front Range city with a defined service area, inspectors can move through neighborhoods systematically during drought periods. Residents who observe a neighbor violating the schedule can report it through the City of Northglenn's utilities or code compliance contacts listed on northglenn.org. If you receive a warning you believe was issued in error — for example, you were hand-watering with an exempt shut-off nozzle — contact the city's utilities department promptly to explain the situation before the notice escalates.

Other outdoor water rules

Outdoor water restrictions under Northglenn's Stage 2 extend beyond lawn irrigation. The following uses are also regulated or restricted:

• Vehicle washing: Washing cars, trucks, and recreational vehicles at home is restricted — if permitted at all under Stage 2, it must use a hose with a shut-off nozzle to prevent free-flowing water. Commercial car washes that recirculate water are generally exempt.
• Pressure washing: Non-essential pressure washing of driveways, sidewalks, and exterior surfaces is not permitted during Stage 2 drought conditions. Washing for health or safety reasons may be allowed with prior contact to the city.
• Pool filling and topping off: Filling new residential pools is typically prohibited or requires a city permit under Stage 2. Topping off existing pools to compensate for evaporation is generally restricted to minimal amounts — Front Range evaporation rates are significant at Northglenn's elevation of roughly 5,400 feet.
• Ornamental fountains and water features: Recirculating fountains may continue operation. Decorative water features that discharge water rather than recirculate it must be shut off.
• Construction water: Dust suppression and compaction water used at active construction sites requires coordination with the city; decorative or non-essential construction irrigation is not permitted.
• Restaurant water service: Restaurants and food service businesses must serve water only upon customer request — automatic table water service is suspended under Stage 2 statewide guidance.

Northglenn's water supply and source

Northglenn's municipal water supply is sourced primarily through the South Platte River system and delivered via infrastructure connected to the broader northern Front Range water network. The city holds water rights in the South Platte basin and coordinates storage and delivery through agreements with regional providers, including access to water treated at the City of Thornton Water Treatment Plant — Northglenn's northern neighbor and a key regional partner for treated drinking water supply.

A portion of Northglenn's water is also connected to storage infrastructure in the Platte River basin, which depends heavily on snowmelt from the Colorado Front Range mountains and the headwaters above Denver. The South Platte's flow through the metro area reflects upstream reservoir conditions; when mountain snowpack runs below average and summer temperatures accelerate evaporation in storage reservoirs, downstream cities like Northglenn feel the pressure almost immediately in available supply margins.

Northglenn also draws on its share of transmountain diversion water that arrives via the Colorado-Big Thompson Project, one of the largest water diversion systems in the American West. The Colorado-Big Thompson moves water from the Western Slope through a 13-mile tunnel under Rocky Mountain National Park to the Eastern Slope, distributing it among dozens of northern Colorado cities and districts through the Northern Colorado Water Conservancy District (Northern Water). When Lake Granby and Shadow Mountain Reservoir — two of the primary CB-T collection points — run low, allotments to Front Range cities decrease, directly tightening Northglenn's available water budget.

Water is treated and delivered to Northglenn residents meeting all Colorado Department of Public Health and Environment standards. The city's water system serves approximately 40,000 residents across its roughly 8-square-mile service area north of Denver.

HOA rules during water restrictions

Colorado Revised Statute § 37-60-126 protects Northglenn homeowners from HOA fines or enforcement actions related to brown or dormant lawns caused by compliance with mandatory water restrictions. If your lawn turns brown because you are following the City of Northglenn's Stage 2 two-day-per-week schedule, your HOA cannot legally penalize you for it. This protection applies as long as the drought restrictions are in effect and you are genuinely following the city's watering schedule — it does not protect a lawn that is brown for other reasons unrelated to the restrictions.

If your HOA sends a violation notice about your lawn's appearance during the current Stage 2 restriction period, respond in writing immediately. Keep your response brief and factual:

"This notice is to inform you that my lawn's current condition is a direct result of compliance with the City of Northglenn's mandatory Stage 2 water restrictions, currently in effect and enforceable under city authority. Colorado Revised Statute § 37-60-126 prohibits HOA enforcement actions against property owners for lawn conditions resulting from compliance with government-mandated water restrictions. I am watering in full accordance with the City of Northglenn's two-day-per-week schedule and request that this notice be rescinded and no further action be taken."

Send this letter via email with read receipt or via certified mail so you have a timestamp. Document your watering schedule — dates, times, zones — in case the HOA disputes the claim. If the HOA proceeds with fines regardless, the Colorado Common Interest Community Act provides complaint and dispute resolution mechanisms through the HOA's own procedures or, in some cases, civil remedies.

Lawn survival guide for Northglenn

Kentucky Bluegrass dominates most Northglenn lawns, and it is the grass most stressed by Stage 2 restrictions. At Northglenn's elevation of approximately 5,400 feet, UV intensity accelerates turf moisture loss, and the combination of low-humidity Front Range air with two-day watering can push Bluegrass into dormancy within two to three weeks during summer. Raise your mower height to 3 to 3.5 inches — taller grass shades soil, reduces evaporation, and protects root crowns. Avoid fertilizing Kentucky Bluegrass during active Stage 2 restrictions; fertilizer pushes growth that requires water the schedule cannot support.

Homeowners with Buffalograss or Blue Grama lawns — both native to the Colorado shortgrass prairie — are in a significantly better position. These grasses evolved to handle exactly the precipitation patterns the Front Range delivers and will survive on two-day watering or even less without permanent damage. If you are considering a lawn conversion, Northglenn's current drought context makes Buffalograss or a Blue Grama blend a practical long-term answer. Water deeply on your two assigned days rather than shallow-watering frequently — deep watering pushes roots down and builds the drought resilience that gets any grass variety through a Colorado Stage 2 summer.

Frequently asked questions

What are my two assigned watering days in Northglenn?

Northglenn assigns watering days based on your street address number under Stage 2. Even-numbered addresses and odd-numbered addresses are assigned different day pairs to distribute system load across the week. The exact current day assignments should be confirmed directly with the City of Northglenn utilities department via northglenn.org, as the specific day pairings are subject to adjustment as drought conditions evolve.

Can I water any time of day on my assigned days?

No. Even on your two assigned watering days, irrigation is prohibited between 10 a.m. and 6 p.m. This midday blackout applies every day of the week. You must water before 10 a.m. or after 6 p.m. on your designated days. Watering during the blackout window on an assigned day still constitutes a violation under Stage 2 rules.

What happens if I get caught watering on the wrong day in Northglenn?

Your first violation results in a written warning — no immediate fine. If you violate the schedule again after receiving that warning, monetary fines are issued. Continued violations lead to escalating penalties. The City of Northglenn retains authority to take further action, including service-level measures, for persistent non-compliance.

Can I wash my car at home during Stage 2 restrictions?

Home vehicle washing is restricted under Stage 2. If any washing is permitted, it requires a hose equipped with an automatic shut-off nozzle — open-running hoses are not allowed. Commercial car washes that recycle and recirculate water are generally exempt from the restrictions and represent the recommended alternative for Northglenn residents during the current drought period.

Is drip irrigation exempt from the two-day schedule?

Yes. Drip irrigation systems are exempt from Northglenn's day-based watering schedule under Stage 2 because they deliver water directly to root zones with minimal waste and no surface runoff. Similarly, hand-held hose watering with an automatic shut-off nozzle is exempt and can be used on any day — including non-assigned days — for targeted watering of trees, garden beds, and containers.

I just installed new sod. Do I still have to follow the two-day limit?

Newly installed sod and seeded areas typically qualify for a temporary establishment exception — usually a 30-day window during which more frequent watering is allowed to prevent total loss of the investment. However, you must register with the City of Northglenn to receive this exception; it is not automatic. Contact the city's utilities department before planting or immediately after installation to confirm current establishment watering rules under Stage 2.

Does Northglenn offer rebates for replacing turf with drought-tolerant landscaping?

Northglenn participates in water efficiency programs, and the state of Colorado and regional water providers have expanded turf replacement incentives in response to ongoing Front Range drought conditions. Contact the City of Northglenn utilities department directly to confirm what rebates or programs are currently available for xeriscape conversion, smart irrigation controllers, or turf removal. Northern Water, which supplies a portion of Northglenn's water through the Colorado-Big Thompson Project, also administers conservation incentive programs that Northglenn customers may qualify for.

How does Northglenn know if I'm violating the watering schedule?

Enforcement comes through two primary channels: utility staff conducting patrols through residential neighborhoods during peak watering hours, and neighbor complaints submitted to the city. Northglenn's compact service area — roughly 8 square miles — makes patrol-based enforcement practical. If a neighbor reports a violation, city staff will investigate and document it. Residents who believe they received an incorrect violation notice should contact the City of Northglenn utilities department directly and promptly to dispute it before it escalates to a fine.

What days can I water my lawn in Northglenn?

2 assigned days/week Hand watering with a shut-off nozzle is typically allowed any day during permitted hours.

When will water restrictions end in Northglenn?

Current Stage 2 restrictions are in effect through Until conditions improve. Monitor https://www.northglenn.org for the latest status.

Can I hand water during Northglenn 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 Northglenn.