Irvine watering schedule 2026
Irvine Ranch Water District sets no watering days and no hours: water any day, at any hour.
Rules from: Irvine Ranch Water District (IRWD) (official schedule )
Irvine watering days by season
Year-round
Any day- MON
- TUE
- WED
- THU
- FRI
- SAT
- SUN
No set daysTodayEarlier this week
No set hours in this season.
How the rule works
IRWD assigns no watering days and no watering hours in Irvine: no odd/even rule, no days-per-week cap, and no time-of-day window appears in its Rules and Regulations or on its watering guide. What is in force year-round are the permanent waste prohibitions in Rules 15.4.1, including no potable water on outdoor landscapes during and within 48 hours of measurable rainfall. IRWD's monthly watering guide does print day counts, such as 4 days for turfgrass spray heads in July, but that chart is the district's own recommendation and not an enforceable schedule. The everyday cost of overwatering is the budget-based rate structure, where usage past 100 percent of your monthly budget moves into the Inefficient and Wasteful tiers. IRWD's Board rescinded the Level 2 Shortage on April 10, 2023 and has declared no shortage level since, so only the permanent rules apply.
Rules change. Get the new Irvine days and hours by email.
- We watch the published Irvine rules for you.
- When they change, one email with the new rule and the date it starts.
- Nothing else: a confirmation now, then only emails about these rules.
How many minutes to run sprinklers on each water day
One zone at a time, from the state climate table for Irvine and the month you pick. The plan does every zone for every month.
- Per week
- 36 min
- Zone
- Lawn
- System
- Spray heads, 1.6 in/hr
Rules and fines in Irvine
Current stage IRWD has no shortage level declared. The Board rescinded the Level 2 Shortage on April 10, 2023 and has declared none since. The 2025 Water Shortage Contingency Plan, adopted by the Board on June 22, 2026, confirms it: "On April 10, 2023, IRWD's Board rescinded the Level 2 Shortage. Permanent restrictions to prohibit water waste remain in effect." Table 4-2 of that plan puts the current baseline at No Shortage, with a 0 percent reduction target, an ET factor of .75 and 50 indoor gallons per person per day. IRWD's six levels, set out in Rules and Regulations 15.5.2, are Level One (Shortage Warning, up to 10 percent), Level Two (Significant Shortage Condition, 11 to 20 percent), Level Three (Severe Shortage, 21 to 30 percent), Level Four (Severe Shortage, 31 to 40 percent), Level Five (Crisis Shortage, 41 to 50 percent) and Level Six (Crisis Shortage, more than 50 percent). None is active.
A written exception can be requested. The full text is below.
IRWD publishes no flat first, second and third offense dollar ladder.
Full text of the rules
Exceptions to the Irvine rules
- Gutter flooding ban applies only where the escape of water "can reasonably be prevented" (Rules and Regulations 15.4.1(1)).
- Washing hard or paved surfaces is prohibited "except when necessary to alleviate safety or sanitary hazards" (15.4.1(3)).
- Potable water in a fountain or decorative feature is prohibited "except where the water is recirculated, or recirculation would cause a public health safety or sanitary hazard" (15.4.1(6)).
- Irrigating ornamental turf on public street medians with potable water is barred only "during a declared shortage or pursuant to any regulation adopted by the State Water Resources Control Board" (15.4.1(8)).
- Nonfunctional turf phase-out carve-out: "the use of potable water is not prohibited to the extent necessary to ensure the health of trees and perennial non-turf plants or as necessary to address an immediate health and safety need" (15.4.1(11)).
- General Manager exemption from any permanent prohibition or shortage restriction on a finding that enforcement "would either (1) cause an unnecessary and undue hardship to the applicant or the public, or (2) would cause or threaten an emergency condition affecting the health, sanitation, fire protection, or safety of the applicant or the public" (15.3.1). The General Manager can require the use of any water conservation devices or practices as a condition of the exemption permit (15.3.2).
- Water budget variances under Rules Section 12.7, "Variance from Residential Rate Structure Budgets; Nonresidential Acreage and Base Index Revisions", with 12.7.1 Residential Variance - Procedure and 12.7.2 Residential Variance - Determination. The grounds listed in 12.7.2(1) are number of people residing in a dwelling unit, medical needs, licensed care facilities, fire control zones (or other regulatory requirements), landscape area, livestock and horses, common area washing machines, and other as determined case by case. Applications go through IRWD's Request a Water Variance form. Categories and thresholds printed there: Additional Household Members (detached home with more than 4 permanent residents; condo attached or detached with more than 3; apartment with more than 2), Additional Landscape Area (detached home more than 1,300 square feet; condo attached or detached more than 435 square feet, with landscape drawings showing irrigated square footage and hardscape excluded), Medical Needs (doctor's note stating the condition requires additional water usage), Licensed Care Facility operating in a residential dwelling (copy of the business license), Livestock or Horses (list of the type and quantity, with a possible site visit), and Other Reasons by calling Customer Service at 949-453-5300.
- Homeowner association protection carried in the 2025 WSCP: "Common interest associations shall not fine or assess owners of separate interests for reducing or eliminating the watering of vegetation or lawns unless the association uses only recycled water for irrigation of the association's common areas and recycled water is also available at the irrigated area of the separate interest."
- No drip, hand watering, new planting, edible garden, potted plant, hot day or smart controller exception is printed by IRWD, because there is no watering day limit or watering hour limit that would need one. The only outdoor timing prohibition is the rain rule in 15.4.1(7): "No person shall apply potable water to outdoor landscapes during and within 48 hours of measurable rainfall."
Fines in Irvine
- 1Step 1: written preliminary notice of violation describing the violation, with 24 hours to correct the violation or terminate the use (Rules and Regulations 15.6.2(2)).
- 2Step 2 if not corrected, at the General Manager's election: (a) disconnect service, (b) install flow-restricting devices restricting non-health and safety related water service, or (c) order issued a second preliminary notice (15.6.2(2)(a) to (c)).
- 3Step 3: service disconnected or restricted is "restored only upon payment of the turn-on and other charges fixed by the Board of Directors" (15.6.2(3)). IRWD publishes no flat first, second and third offense dollar ladder.
- 4Court penalty, general: "Pursuant to Water Code Section 35424, any violation of these Rules and Regulations is a misdemeanor, the violation of which shall, upon conviction, be subject to a fine of not less than $50.00 nor more than $200.00" (14.1.3).
- 5Court penalty, conservation program: "Pursuant to Water Code Section 377, any violation of Section 15 is a misdemeanor punishable by imprisonment in the County Jail for not more than 30 days or by fine of not more than $1,000, and a violator may also be held civilly liable in an amount not to exceed $10,000" (14.1.3).
- 6During a declared shortage only: once an ordinance or resolution implementing restrictions or mandatory measures under the Water Shortage Contingency Plan is published or posted, "violations thereof shall be misdemeanors punishable by imprisonment in the County Jail for not more than 30 days or by fine of not more than $1,000, or both" (15.6.2(5)).
- 7Everyday financial consequence is the budget-based tiered rate, not a citation. Residential potable rates effective July 1, 2026 per CCF (1 CCF = 748 gallons): Tier 1 Low Volume, 0 to 40 percent of the monthly budget, $2.18; Tier 2 Base, 41 to 100 percent, $2.92; Tier 3 Inefficient, 101 to 140 percent, $8.03; Tier 4 Wasteful, 141 percent and above, $19.32. Section 6 of the 2025 WSCP calls this "An excess use charge based upon the budget-based rate structure, which is always in effect."
Report water waste
IRWD's Log-a-Leak tool at IRWD.com/logaleak, an online form where the reporter drops a map pin on the broken sprinkler, leak or runoff. IRWD's own article says "Just go to IRWD.com/logaleak and pin the location" and "Once you hit send, IRWD will contact the responsible person to get the problem fixed." It is meant for water waste the reporter spots elsewhere in the neighborhood, including someone else's home, HOA common areas and businesses. For a leak on the reporter's own property the article says there is no need to fill out the form, and directs the customer to contact IRWD instead. Customer Service and the 24-hour line is 949-453-5300; email CustomerService@IRWD.com.
Irvine watering questions
What days can I water in Irvine?
Any day. IRWD assigns no watering days to Irvine addresses: no odd/even rule, no assigned weekdays, and no days-per-week cap. Its monthly guide does suggest day counts, such as 3 days for turfgrass spray heads in May, but that is advice rather than a schedule anyone enforces. The charts do not even agree with each other in every month: in June, the spray chart shows 2 days for drought tolerant plants while both drip charts show 3 days.
What hours can sprinklers run in Irvine?
There is no time-of-day restriction. IRWD publishes no start time, no stop time and no time-of-day window on its watering guide, on its schedule PDFs or in its Rules and Regulations. The only outdoor timing prohibition IRWD prints is the rain rule in Rule 15.4.1(7).
What is actually banned year-round?
The prohibitions in Rules 15.4.1 are in effect at all times, whether or not a shortage is declared. They cover gutter flooding, unrepaired leaks, washing hard or paved surfaces, waste generally, washing a motor vehicle with a hose not fitted with a shut-off nozzle, potable water in a non-recirculating fountain, watering during and within 48 hours of measurable rainfall, single pass cooling, commercial car wash recirculation, and the nonfunctional turf phase-out. The phase-out dates in 15.4.1(11) matter most to commercial and HOA readers: publicly owned landscapes after January 1, 2027, commercial, industrial and institutional owned landscapes after January 1, 2028, homeowners association common area landscapes after January 1, 2029, and publicly owned landscapes within disadvantaged communities after January 1, 2031 or upon the date state funding for turf conversion becomes available.
Can I water after it rains?
Not for two days. Rule 15.4.1(7) reads: "No person shall apply potable water to outdoor landscapes during and within 48 hours of measurable rainfall." This is a permanent prohibition rather than a drought measure, and it is the one outdoor timing rule IRWD publishes.
What is exempt from the IRWD rules?
Several carve-outs sit inside the rules themselves. The gutter flooding ban applies only where the escape of water can reasonably be prevented, washing hard or paved surfaces is permitted when necessary to alleviate safety or sanitary hazards, a fountain is permitted where the water is recirculated or where recirculation would cause a public health safety or sanitary hazard, and the turf phase-out does not prohibit potable water to the extent necessary to ensure the health of trees and perennial non-turf plants or to address an immediate health and safety need. The General Manager can also grant an exemption under Rule 15.3.1 on a finding that enforcement would either cause an unnecessary and undue hardship to the applicant or the public, or would cause or threaten an emergency condition affecting the health, sanitation, fire protection, or safety of the applicant or the public, and can require water conservation devices or practices as a condition of the exemption permit.
What is the fine for water waste in Irvine?
IRWD publishes no flat first, second and third offense dollar ladder. Enforcement starts with a written preliminary notice of violation describing the violation, with 24 hours to correct the violation or terminate the use. If it is not corrected, the General Manager can elect to disconnect service, install flow-restricting devices restricting non-health and safety related water service, or order a second preliminary notice, and service that has been disconnected or restricted is restored only upon payment of the turn-on and other charges fixed by the Board of Directors. Rule 14.1.3 separately notes that under Water Code Section 35424 a violation of the Rules and Regulations is a misdemeanor subject on conviction to a fine of not less than $50.00 nor more than $200.00, and that under Water Code Section 377 a violation of Section 15 is a misdemeanor punishable by imprisonment in the County Jail for not more than 30 days or by fine of not more than $1,000, with civil liability in an amount not to exceed $10,000. Those amounts come from a court on conviction, not from a citation mailed by IRWD.
How does IRWD charge me for using too much water?
Through budget-based tiered rates rather than a citation, and that is the consequence most households actually see. Residential potable rates effective July 1, 2026 per CCF, where 1 CCF = 748 gallons, are $2.18 for Tier 1 Low Volume at 0 to 40 percent of the monthly budget, $2.92 for Tier 2 Base at 41 to 100 percent, $8.03 for Tier 3 Inefficient at 101 to 140 percent, and $19.32 for Tier 4 Wasteful at 141 percent and above. Section 6 of the 2025 Water Shortage Contingency Plan calls this an excess use charge based upon the budget-based rate structure, which is always in effect. Households with more residents, a larger landscape area, medical needs, a licensed care facility, or livestock and horses can apply for a water budget variance through IRWD's Request a Water Variance form.
My address is near Irvine but my bill is not from IRWD. Whose rules apply?
Address matters more than city name here. IRWD serves all of the city of Irvine plus parts of Lake Forest, Newport Beach, Tustin, Costa Mesa, Orange and unincorporated Orange County, so several neighboring cities are split between two suppliers. Tustin addresses receive water from either the Tustin Water Service or the Irvine Ranch Water District depending on where the customer resides, Mesa Water District covers most of Costa Mesa, a portion of Newport Beach and John Wayne Airport, and the remaining parts of Lake Forest, Orange and Newport Beach sit with other retailers such as El Toro Water District, Serrano Water District, Trabuco Canyon Water District, Santa Margarita Water District and the cities of Newport Beach, Orange and Santa Ana. Each of those sets its own rules, so check the supplier named on your water bill.
How do I report water waste to IRWD?
Use IRWD's Log-a-Leak tool at IRWD.com/logaleak, an online form where the reporter drops a map pin on the broken sprinkler, leak or runoff. IRWD's own article says "Just go to IRWD.com/logaleak and pin the location" and "Once you hit send, IRWD will contact the responsible person to get the problem fixed." It is meant for water waste spotted elsewhere in the neighborhood, including someone else's home, HOA common areas and businesses. For a leak on your own property there is no need to fill out the form; contact Customer Service instead on the 24-hour line at 949-453-5300 or at CustomerService@IRWD.com.
Sources and verification
Rules checked October 2026. The schedule is watched for changes and updated when the supplier changes it.
Water supplier: Irvine Ranch Water District (IRWD) (official schedule )
All 14 sources
- IRWD Rules and Regulations, adopted 06/09/2025Read August 28, 2026 on www.irwd.com/wp-content/uploads/2026/05/ADOPTED-Rules-Regulations-06092025.pdf
- IRWD Spray Head Irrigation Schedule (PDF, REV082123)Read August 28, 2026 on www.irwd.com/wp-content/uploads/meetings/other/save-water-money/SprayHead_Aug2023.pdf
- IRWD Drip Irrigation Schedule (PDF, REV110723)Read August 28, 2026 on www.irwd.com/wp-content/uploads/meetings/other/save-water-money/Drip_Irrigation_Schedule_-_EN_110723.pdf
- IRWD Outdoor Watering and Drip Irrigation GuideRead August 28, 2026 on www.irwd.com/learn/save-water-money/watering-guide
- IRWD Board of Directors package of June 22, 2026, with the 2025 Water Shortage Contingency PlanRead August 28, 2026 on www.irwd.com/wp-content/uploads/2026/06/06.22.2026_Board_Pkg.pdf
- IRWD residential potable water rate tiers effective July 1, 2026Read August 28, 2026 on www.irwd.com/get-help/understanding-your-bill/usage-rates/residential
- IRWD Request a Water Variance formRead August 28, 2026 on www.irwd.com/get-help/request-a-water-variance
- IRWD article on reporting a leak in your neighborhood (Log-a-Leak)Read August 28, 2026 on www.irwd.com/liquid-news/what-to-do-if-you-spot-a-leak-in-your-neighborhood
- IRWD service area statementRead August 28, 2026 on www.irwd.com/about-us
- Mesa Water District About Us pageRead August 28, 2026 on www.mesawater.org/about-us
- City of Tustin Water System Information pageRead August 28, 2026 on www.tustinca.org/1542/Water-System-Information
- IRWD Rules and Regulations pageRead August 27, 2026 on www.irwd.com/get-help/rules-and-regulations
- IRWD 2025 Water Shortage Contingency Plan (flipbook)Read August 27, 2026 on publications.irwd.com/view/685541611
- City of Irvine water conservation tips pageRead August 27, 2026 on cityofirvine.gov/news-media/news-article/water-conservation-tips
Nearby water suppliers
The name on the water bill decides which rules apply.