California Code of Regulations › Title 23 - Waters › Division 2 - Department of Water Resources › Chapter 7 - Water Loss Audits and Water Loss Control Reporting › Section 638.1 - Definitions

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
As used in this Chapter, the following terms mean:
(a) "Apparent losses" means losses due to
				unauthorized consumption and/or nonphysical (paper) losses attributed to
				inaccuracies associated with customer metering, or systematic handling
				errors.
(b) "Authorized
				consumption" means the volume of water taken by registered customers, the water
				supplier, and others who are implicitly or explicitly authorized to do so.
				Authorized consumption may be billed or unbilled, metered or
				unmetered.
(c) "AWWA" means the
				American Water Works Association.
(d) "CA-NV AWWA" means the California-Nevada
				Section of the American Water Works Association.
(e) "Data grading values" means specific
				grade scores (on a scale from 1 to 10) applied to each input component in the
				AWWA Free Water Audit Software spreadsheet.
(f) "Data Validity Score (DVS)" means a
				measure of the overall trustworthiness of the data entered in the AWWA Free
				Water Audit Software. The DVS represents the validity of the water audit data
				and is a reflection of the level of best practices employed by the water
				supplier associated with the water supply system subject to the
				audit.
(g) "Department" means the
				Department of Water Resources.
(h)
				"General manager" means a person who holds an executive position with the urban
				retail water supplier with overall responsibility for managing operations,
				revenue, and costs. Such a position may also be described as a water department
				director, city manager, utilities manager, or the director of public
				works.
(i) "Level 1 validation"
				means a review of the water loss audit that includes an examination of the data
				sources used for each input and an evaluation of the DVS selected for each
				input of the audit, as described in Section
				700.3.
(j) "Non-revenue water" means the portion of
				water consumption that is not billed and does not produce revenue. It equals
				the unbilled authorized consumption plus apparent and real losses.
(k) "Real losses" means the physical water
				losses from the pressurized potable water system and the utility's potable
				water storage tanks, up to the point of customer consumption.
(l) "Report" means the water loss audit
				report of a potable water supply required to be submitted to the Department as
				specified in Section
				700.5.
(m) "Standardized water loss audit" means a
				water loss audit conducted in accordance with the method specified in Section
				700.2.
(n) "Urban retail water supplier" means a
				water supplier, either publicly or privately owned, that directly provides
				potable municipal water to more than 3,000 end users or that supplies more than
				3,000 acre-feet of potable water annually at retail for municipal
				purposes.
(o) "Validating" means a
				process whereby an urban retail water supplier uses a water audit validator to
				confirm the basis of data entries in the Reports and to characterize the
				quality of the reported data. All references herein to "validating" or
				"validation" refer to "Level 1 validation."
(p) "Water audit validation" refers to the
				process of examining water loss audit inputs to consider the water audit's
				accuracy and document the sources of uncertainty.
(q) "Water audit validator" means a person
				who meets the requirements of Section
				700.4 to perform the validation of
				a water loss audit.
1. New chapter
				  7 (sections
				  700.1-700.6) and section filed
				  1-24-2018; operative 1-24-2018 pursuant to Government Code section
				  11343.4(b)(3)
				  (Register 2018, No. 4).
2. Change without regulatory effect
				  relocating division 3, chapter 7 (sections
				  700.1-700.6) to new division 2,
				  chapter 7 (sections
				  638.1-638.6) and renumbering
				  section 700.1 to section
				  638.1 filed 2-22-2018 pursuant to
				  section 100, title 1, California Code of
				  Regulations (Register 2018, No. 8).
Note: Authority cited: Section
					 10608.34, Water
					 Code. Reference: Sections
					 10608.12 and
					 10608.34, Water
					 Code.