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Free Tools · Aliso Viejo · Real MNWD 2026 Rates

Free Leak Detection Tools for Aliso Viejo Homeowners

Four interactive tools built specifically for Aliso Viejo and South Orange County. All calculations use confirmed Moulton Niguel Water District rates effective January 1, 2026. No account, no sign-up, no data collected.

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Hidden Water Leak Detector
Enter two MNWD meter readings and an elapsed time. Get gallons lost per hour, MNWD cost estimate, severity, and likely cause. Best first step when your bill spikes unexpectedly.
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Leak Cost Calculator
See what a dripping faucet, running toilet, or sprinkler leak costs on real MNWD budget-based rates. Includes over-budget tier impact most generic calculators miss.
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Slab Leak Risk Checker
9 weighted symptoms specific to Aliso Viejo's slab-on-grade 1980s-90s copper pipe homes. Live score from 0-21 with color-coded risk bands and MNWD-specific notes.
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Pool Bucket Test Calculator
Separate a real pool leak from Southern California evaporation. Enter your 24-hour bucket test measurements. Includes MNWD outdoor budget cost estimate and pump-on/off diagnostic tip.
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About These Tools and MNWD Rates

All cost calculations use confirmed Moulton Niguel Water District rates effective January 1, 2026 from the December 2025 Board of Directors resolution. Tier 1 water is $2.76/HCF (within indoor budget); Tier 2 is $3.34/HCF (outdoor budget); Tier 3-5 are $4.75, $7.26, and $11.31/HCF respectively. A $0.14/HCF wholesale pass-through applies to all tiers. MNWD wastewater is a flat monthly fee plus a per-person charge and is not affected by supply leaks.

After a confirmed leak is repaired, you may qualify for a bill adjustment under the MNWD Bill Adjustment Program, which can recalculate Tier 3 and 4 usage at the Tier 2 rate.

Questions after using the tools? Call (949) 325-3122 for same-day leak detection throughout Aliso Viejo and South Orange County.

Aliso Viejo · South Orange County

Tools say you have a leak? We answer 24 hours a day.

(949) 325-3122