Santa Margarita Water District
Rancho Santa Margarita, Mission Viejo, Ladera Ranch, Coto de Caza, Las Flores, Rancho Mission Viejo, San Juan Capistrano, Dove Canyon, and surrounding South Orange County communities
Population reference
Approximately 210,000 residents according to the District’s current rate-study and customer materials; older official operating-period records reported approximately 159,632–168,289 residents. Active California CWS CA3010101 is well above the 3,300-person qualification threshold and provides drinking water, wastewater, and recycled-water service across nine South Orange County communities.
Billing detail
Broad public detail found
Official destination
Open provider website ↗Provider-specific findings
Billing and account research from public material
Provider-specific research notes are displayed separately from fields that contain only an unavailable-information marker. Read qualifiers in each note and verify current account terms with the provider.
- Billing frequency
- Monthly; the District’s residential rate schedule and water-budget bills are calculated on monthly metered usage, although the number of days in a particular read period can vary.
- Rate structure
- Increasing block tiers based on an individualized water budget, with four conservation tiers and a location-based power surcharge. Effective March 1, 2026, residential commodity rates are $3.11/CCF for Low Volume use, $3.45/CCF for Base use, $4.33/CCF for Inefficient use, and $7.27/CCF for Wasteful use; a 5/8-by-3/4-inch or 1-inch residential meter has a $26.16 monthly fixed water charge. Power surcharges vary by zone, currently shown as $0.16, $0.27, or $0.45 per CCF.
- Residential cost reference
- For a typical single-family customer using 5,000–7,000 gallons per month (about 6.7–9.4 CCF), staying within the Low Volume/Base budget, water service is approximately $48–$63 per month before the location-specific power surcharge. Adding the standard single-family wastewater charge produces a rough combined water-and-wastewater range of about $88–$106 per month, subject to the customer’s conservation budget, meter size, power zone, billing days, and wastewater category. Exceeding the water budget can move usage into the $4.33 or $7.27 tiers and materially increase the total.
- Wastewater and sewer calculation
- For a single-family residence, wastewater has a $31.96 monthly fixed base charge plus $1.24 per CCF of wastewater commodity use, with commodity billing capped at 9 CCF. Multifamily single-meter service uses a $28.60 monthly fixed charge and a 7-CCF commodity cap; common meters use $13.07 per account plus $15.53 per unit. The public residential schedule does not describe a winter-average calculation; wastewater quantity is billed under the District’s published category and cap, while collection or treatment arrangements can differ by service area.
- Meter reading
- SMWD bills metered water usage monthly and the current public residential materials describe water-budget billing, meter readings, and customer usage review, but do not identify a universal AMI vendor, hourly transmission interval, or smart-meter rollout schedule for every service address. The current rules include an official meter-testing process and the District’s customer portal provides account usage and bill information. Customers needing the exact read date, meter type, or leak-alert capability for a particular address should call 949-459-6420.
- New-account deposit
- The District’s current rules do not set one universal startup deposit for every new residential account. When a payment deposit is required, it may be set at no more than three times the average monthly billing and assessed in $100 increments; no interest is paid. The deposit is returned after 12 consecutive months of satisfactory payment history, although it may be retained for final-account obligations. The amount and waiver decision are account-specific and should be confirmed during the start-service request.
- Activation or transfer fee
- SMWD does not transfer water service from one resident to another; the outgoing customer requests stop service and the incoming customer submits a separate start-service request. The current public Start/Stop and Pay Bill pages do not publish a universal 2026 residential activation fee or transfer charge. Any property-specific deposit, returned-payment, field-service, or construction connection charge should be confirmed at 949-459-6420 before the requested start date.
Context, not a score
How documentation coverage compares
This profile
100%
overview fields with research notes
California
67%
records with any overview detail
National index
50%
records with any overview detail
Coverage measures what this directory documented. It does not measure service quality, affordability, or regulatory compliance.
Research record
Broad public detail found
7 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
100%
Primary verification routes
- Santa Margarita Water District public website ↗
Provider-controlled destination used to confirm current customer instructions.
- EPA SDWIS / ECHO lookup (CA3010101) ↗
Search the federal drinking-water database using public water system ID CA3010101.