4 Colo. Code Regs. § 723-4-4304

Current through Register Vol. 47, No. 22, November 25, 2024

Section 4 CCR 723-4-4304 - Scheduled Meter Testing

(a) A utility shall test, or shall arrange for testing of, service meters in accordance with the schedule in this rule or in accordance with a sampling program approved by the Commission.

(b) If it wishes to use a sampling program, a utility shall file an application to request approval of a sampling program. The application shall include:

(I) the information required by paragraphs 4002(b) and 4002(c);

(II) a description of the sampling program which the utility wishes to use. This description shall include, at a minimum the following:

(A) the type(s) of meters subject to the sampling plan;

(B) the frequency of testing;

(C) the procedures to be used for the sampling;

(D) the meter test method to be used;

(E) the accuracy of the testing and of the sampling plan;

(F) an explanation of the reason(s) for the requested sampling program; and

(G) an analysis which demonstrates that, with respect to assuring the accuracy of the service meters tested, the requested sampling program is at least as effective as the schedule in this rule.

(c) Revisions to any portion of a sampling program approved pursuant to the procedure in paragraph (b) of this rule shall be accomplished by the filing of, and Commission approval of, a new application.

(d) Every service meter shall be tested and adjusted before installation to ensure that it registers accurately and conforms with the requirements of rule 4302. In addition, every service meter shall be tested on a periodic basis, as follows:

(I) diaphragm type gas service meter in sizes having rated capacity of 800 cubic feet or less per hour at one-half inch water column differential, every six years;

(II) diaphragm type gas service meter in sizes having a rated capacity of more than 800 cubic feet per hour at one-half inch water column differential, every five years;

(III) rotary displacement type gas service meter in sizes having a rated capacity of 5,000 cubic feet or less per hour at one-half inch water column differential, every five years;

(IV) rotary displacement type gas service meters in sizes having a rated capacity of more than 5,000 cubic feet per hour at a differential not to exceed two inches water column, the frequency of testing stated in the utility's tariff;

(V) orifice meters, not less than once each year; and

(VI) meter types not listed, not less than once each year.

(e) In its tariff, a utility shall describe the utility's practices concerning the following:

(I) testing and adjustment of service meters at installation; and

(II) periodic testing after installation.

4 CCR 723-4-4304

38 CR 17, September 10, 2015, effective 9/30/2015

40 CR 01, January 10, 2017, effective 1/30/2017

41 CR 11, June 10, 2018, effective 6/30/2018

42 CR 07, April 10, 2019, effective 4/30/2019

43 CR 08, April 25, 2020, effective 5/15/2020

44 CR 04, February 25, 2021, effective 3/17/2021

44 CR 24, December 25, 2021, effective 1/14/2022

45 CR 18, September 25, 2022, effective 10/15/2022

46 CR 06, March 25, 2023, effective 1/25/2023

46 CR 08, April 25, 2023, effective 5/15/2023