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CA3710020

City of San Diego

City of San Diego · SAN DIEGO County · Potable Water · Retail

Real loss per connection per day (2024)

16.4gallons

Higher than 29% of California systems

Real loss as % of water supplied

4.2%

Total loss 7.2% · apparent 2.9%

Change vs prior year

−36.6gal/conn/day

Loss falling

Real loss volume, latest audit

2.24B gal

6,879 AF · 375,620 connections

Loss history

8 audit years available (2016–2024).

Teal area: real loss in gallons per service connection per day. Orange line: real loss as a percentage of water supplied. Gaps mean the metric was not calculable for that audit.

Peer comparison

This system

16.4gal/conn/day

SAN DIEGO County median

16.0gal/conn/day

Statewide median

26.8gal/conn/day

Audit record

YearPeriodSuppliedReal lossgal/conn/daygal/mile/dayReal %Total %ILIValidityStatus
20242024-07-01 → 2025-06-30163,136 AF6,879 AF16.41,7694.2%7.2%0.8657Preliminarily Approved
20232023-07-01 → 2024-06-30159,475 AF22,152 AF53.05,30313.9%16.5%2.7462Preliminarily Approved
20222022-07-01 → 2023-06-30171,169 AF31,029 AF75.67,45618.1%20.6%3.8962Preliminarily Approved
20212021-07-01 → 2022-06-30165,476 AF12,871 AF32.43,1247.8%10.6%1.6665Preliminarily Approved
20202020-07-01 → 2021-06-30166,541 AF9,781 AF27.02,3815.9%8.8%1.3565Requirements Addressed
20182018-07-01 → 2019-06-30162,530 AF11,185 AF31.32,9246.9%9.8%1.6763Requirements Not Addressed
20172017-07-01 → 2018-06-30174,566 AF9,699 AF30.52,5545.6%8.5%1.4962Requirements Not Addressed
20162016-07-01 → 2017-06-30167,201 AF10,644 AF33.42,8756.4%9.3%1.6559Requirements Addressed

Data quality notes

No integrity flags were raised on this system's audits.

Provenance

Audit data
CA Urban Retail Water System Water Loss Annual Loss Audit Data (DWR)
Volume normalization
Source acre-feet and million-gallon values converted at 1 acre-foot = 325,851 gallons
Geography
California SABL drinking-water service areas + EPA ORD SAB Model service-area polygon (PWSID)
Geography match
pwsid_exact_service_area · high confidence
Audits published
8
Full method and caveats