5 Colo. Code Regs. § 1002-11.5

Current through Register Vol. 47, No. 20, October 25, 2024

Section 5 CCR 1002-11.5 - MONITORING PLAN RULE

11.5(1)Applicability

For all public water systems, the supplier must comply with the monitoring plan requirements specified in this rule.

11.5(2)General Requirements

(a) The supplier must develop and implement a monitoring plan which must ensure that the water quality monitoring performed by the supplier is representative of the water supplied to consumers and is consistent with regulatory requirements of the Colorado Primary Drinking Water Regulations.

(b) The supplier must maintain the monitoring plan and make it available for inspection by the Department.

11.5(3)Monitoring Plan Required Elements

(a) The supplier must include all of the following information in the monitoring plan:

(i) Part 1 - System Summary:

(A) The Colorado public water system identification number (PWSID).

(B) The full name of the supplier (e.g., the name of a corporation, LLC, partnership, sole proprietor, HOA, etc.).

(C) The system's mailing address.

(D) The name of the supplier's authorized contact person(s) responsible for the development and implementation of the monitoring plan, if other than the supplier.

(E) The telephone number of the supplier or the supplier's authorized monitoring plan contact person.

(F) The system's classification (i.e., community, non-transient, non-community, or transient, non-community).

(G) The total population supplied by the system, by population type (i.e., the number of resident, non-transient, and transient consumers).

(H) The physical addresses of all system facilities, including master meters, and the latitude and longitude of all facilities.

(I) The physical location of all records required under 11.36.

(ii) Part 2 - Water Sources Details:

(A) Identification of all water sources capable of being used by the system, (i.e., those connected by conveyances, whether currently producing or not).

(B) A schematic, diagram or sketch showing how the flow from each source is connected to the treatment processes and the distribution system.

(iii) Part 3 - Water Treatment Details:

(A) A summary of the system's operating characteristics.

(B) A schematic of the water treatment plant(s) identifying:

(I) All treatment processes, including all chemical feed points, and the associated periods of operation that were assumed in the design of the monitoring plan (e.g., use of peaking facilities, alternative water sources, maintenance schedules that take facilities offline, etc.).

(II) All treatment plant monitoring locations.

(iv) Part 4 - Distribution System Details:

(A) A schematic of the distribution system identifying all of the following:

(I) All entry points.

(II) All treatment facilities located after the entry point(s) (e.g., booster chlorination).

(III) All storage facilities and finished water reservoirs.

(IV) All distribution system sampling locations.

(V) All master meters to other public water systems.

(VI) All pump stations.

(v) Part 5 - Individual Rule Sampling Plans:

(A) For each applicable monitoring or sampling requirement:

(I) The frequency and approximate time of collection.

(II) The monitoring and sampling location identification and associated identification number.

(III) The justification for distribution system monitoring location selections and, if appropriate, the justification for all other monitoring and sampling location selections.

(IV) The sample preservation, quality assurance, and quality control procedures, including procedures for equipment calibration.

(V) The analysis procedure (i.e., certified laboratory or on-site by a Department-approved party).

(VI) The monitoring and sampling results presentation format.

(VII) Procedures to assess and report compliance status for MCLs, MRDLs, action levels, treatment techniques and, if applicable, disinfection byproduct precursor removal efficiency.

(VIII) A process to review and update the selected distribution system monitoring and sampling locations to account for changes due to growth or other significant changes to the distribution system.

(b) The supplier may use one schematic if it includes all elements specified in 11.5(3)(a)(ii-iv).

11.5(4)Monitoring Plan Reporting Requirements

(a) For new systems, the supplier must submit the information specified in 11.5(3)(a)(i-iv) to the Department no later than the 10^th of the month following the end of the first quarter in which monitoring is required.

(i) For surface water systems supplying greater than (>) 3,300 people, the supplier must also submit a copy of the Individual Rule Sampling Plan for the following no later than the date the supplier collects the first sample: 11.23: Maximum Residual Disinfectant Levels Rule, 11.24: Disinfection Byproduct Precursors Rule, 11.25(2): Chlorite, and 11.25(3): Bromate.

(A) The Department may review and require the supplier to revise the sampling plan.

(b) The supplier must submit the Individual Rule Sampling Plan information specified in 11.5(3)(a)(v) to the Department as specified in the following rules: for integrated systems in 11.42(4), for the Disinfection Byproducts Rule in 11.25(1)(d), for the Groundwater Rule: Disinfection Waivers in 11.13(2), and for the Revised Total Coliform Rule in 11.16(3).

11.5(5)Monitoring Plan Revisions

The supplier must submit any changes to the monitoring plan no later than 30 days after the effective date of the change.

5 CCR 1002-11.5

38 CR 07, April 10, 2015, effective 4/30/2015

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

41 CR 23, December 10, 2018, effective 12/30/2018

43 CR 07, April 10, 2020, effective 4/30/2020

43 CR 17, September 10, 2020, effective 9/30/2020

45 CR 24, December 25, 2022, effective 1/14/2023