Drought Restrictions and the Trades That Use Water

Why this matters

A drought stage declaration can turn a pressure-washing shop's best month into a month of cancellations overnight, and it can put a lawn crew's sprinkler startup in violation of a rule nobody on the crew read. Fines usually land on the property owner or the water account holder, which means your customer pays for your mistake and remembers who caused it. The shops that keep working through restrictions are the ones that read the stage table the day it is published, know which of their services it touches, and know which exemptions and variances exist before a customer asks.

Who makes the rules, and why the layer matters

Water restrictions are almost entirely local. There is no federal outdoor-watering rule. The layers stack like this:

• The water supplier (a city utility, a water district, a private water company) adopts a drought contingency or water shortage plan with stages, typically numbered from a voluntary stage up through mandatory stages that get stricter. Each stage lists what is prohibited, when, and the penalty.
• The state may require suppliers to have such plans and, in a severe drought, may impose statewide minimums. California did both: its State Water Resources Control Board adopted emergency regulations during the 2014 to 2017 drought that, among other things, barred washing driveways and sidewalks with potable water and required a shutoff nozzle on any hose used to wash a vehicle, and it adopted further emergency rules in 2022. Texas requires many retail suppliers to file drought contingency plans with the state. Other states leave it to the supplier.
• Groundwater districts and well owners are a separate layer. A house on a private well may be outside the utility's restrictions entirely, or inside a groundwater district's rules. Do not assume either way.

The practical consequence: two customers a mile apart, on different water suppliers, can be under different stages on the same day. Your intake needs to know which supplier serves the address, not just the city name.

What restrictions usually reach, by trade

The pattern across stage tables is consistent enough to plan around, though the specifics are always the supplier's.

Read the actual wording. "Washing of hard surfaces" and "washing of buildings" are different clauses, and a stage may prohibit one and not the other. A health-and-safety exemption usually needs the condition to exist (a grease spill, not "the driveway is dirty"). "Surface preparation" exemptions usually tie to the next step happening (paint, stain, seal) on that surface.

Variances and commercial operator programs

Most stage tables let a supplier grant a variance, a written exception for a specific property or operator. Three kinds matter to service shops.

• Establishment permits for new sod, seed or plantings, usually allowing extra watering for a fixed period (often several weeks) after installation. The property owner normally applies. A lawn shop that installs sod during a restriction without one has sold the customer a lawn they are not allowed to keep alive.
• Commercial operator certification. Some suppliers register mobile washing businesses that meet a standard, typically water recapture, a shutoff nozzle, and discharge to the sanitary sewer rather than the storm drain. Registered operators may work when residents cannot wash their own driveways. Ask the supplier's conservation office whether a program exists before the drought, not during it.
• Case-by-case variances for a customer with a specific need. These take time; the office should not promise one.

Get it in writing and carry it. A variance or registration that exists only in an email in the owner's inbox is no help to a crew member being questioned by a water patrol officer at 10 am. A copy in the job record, visible to the tech on site, is the working form.

Water-wise practice that keeps you working

These cut usage and also make the shop's case to the supplier and the customer.

• Know your flow. A pressure washer's rated flow in gallons per minute times run time is the water used, and you can quote it. A 4 gallon-per-minute machine running 90 minutes of actual trigger time uses 360 gallons. A garden hose with no nozzle often runs well above that, which is the comparison a customer understands.
• Recapture. A berm, a mat and a vacuum recovery unit let a washing crew collect wash water for disposal to the sanitary sewer or reuse after filtering. Recapture also answers the separate stormwater question: discharging wash water to a storm drain is restricted under local stormwater ordinances in many places regardless of drought. See related: Stormwater and Erosion on Small Outdoor Jobs.
• Non-potable sources. Recycled (reclaimed) water from a purveyor's fill station is allowed for many uses during restrictions, with rules: a permit or account, tank labeling, an air gap or approved backflow arrangement at the fill point, and no use where people may drink it. Never connect a tank that has held recycled water to a potable system.
• Pool covers and leak repair. A cover can cut evaporation substantially. A pool losing more than evaporation explains is leaking, and a leak repair is the best water-saving work a pool shop sells in a drought.
• Irrigation audits. Catch-cup testing, fixing broken heads, matching precipitation rates by zone and moving lawns to drip where allowed reduce use and keep the customer inside their watering days.
• Shift the method. Soft washing (low pressure with a cleaning solution, then a rinse) can use less water than high-pressure washing for siding and roofs, and window cleaning by hand uses little. Neither is automatically exempt; the wording decides.

Worked example: Stage 2 hits a pressure-washing week

A three-person pressure-washing shop has 14 jobs booked for the week a water supplier moves from Stage 1 to Stage 2. The Stage 2 table prohibits "washing of sidewalks, driveways, patios and other hard surfaces with potable water, except as necessary to address an immediate health and safety need or to prepare a surface for paint, stain or sealant." Building exteriors are not mentioned until Stage 3.

The office sorts the 14 jobs by what the wording reaches, not by what the customer called the job:

• 5 driveway and patio cleanings with nothing to follow. Prohibited at Stage 2 with potable water. The shop has no recycled-water account yet. Office offers to reschedule or to hold until the shop's application for the supplier's mobile washer registration is decided.
• 3 deck cleanings before staining, stain booked within the same week by the shop's own crew. Inside the surface-preparation exemption as written. The office notes the stain date on each job, because the exemption is tied to the stain actually following.
• 4 house washes (siding). Not in the Stage 2 list. Proceed, using the shutoff nozzle the shop already uses and directing runoff away from the storm drain.
• 1 restaurant dumpster pad with grease buildup. Arguably health and safety, but the shop's practice is to confirm with the supplier's conservation line before relying on an arguable exemption. The supplier confirms grease removal qualifies if the water is recaptured. The crew brings the recovery unit.
• 1 HOA common-area walkway the manager calls "slippery." The office asks for a photo. The photo shows dirt, not algae or a slip hazard. Office tells the manager plainly that Stage 2 does not cover it and reschedules.

Result for the week: 8 of 14 jobs run (3 decks, 4 houses, 1 dumpster pad); 6 are held (5 driveways and patios, 1 walkway). Water used on the 8 is recorded per job from trigger time. That log is attached to the mobile washer registration application, because it shows the supplier what the shop's actual usage looks like.

What changes the answer. If the supplier's wording had prohibited "washing of any exterior surface," the 4 house washes would have been held too. If the shop had a recycled-water account and the stage applied only to potable water, the 5 driveways could have run on non-potable water with the right tank and labeling, in a district whose rules allow that use. If the customer is on a private well outside the district, the district's stage does not reach the property, though a state-level emergency rule might.

The failure mode. The common error is reading the restriction from a news summary, which turns "hard surfaces" into "no outdoor washing" or the reverse. The other is relying on the surface-preparation exemption for a deck the customer "might stain next spring." If a patrol officer asks, the exemption has to be true on that day.

How to verify you are covered

• For each active service address, the job record names the water supplier, not just the city.
• The office has the current stage table for each supplier your routes touch, dated, with the line that reaches each service highlighted.
• Every exemption relied on is written on the job: which clause, why it applies, and what follow-up makes it true.
• Variances and registrations are on file and visible to the tech on site.
• When a stage changes, the office re-sorts the next two weeks of jobs within a business day of the announcement. A common starting point is to watch the supplier's notices weekly during a dry season and daily once a stage change is proposed.

References

• Your water supplier's drought contingency or water shortage plan and current stage notice
• State water agency emergency regulations where adopted (for example, the California State Water Resources Control Board's drought emergency regulations)
• Local stormwater ordinance for discharge of wash water
• See related: Stormwater and Erosion on Small Outdoor Jobs; Design Events: What the Code Assumes Will Happen to the House