5 Colo. Code Regs. § 1002-11.12

Current through Register Vol. 47, No. 11, June 10, 2024

Section 5 CCR 1002-11.12 - GROUNDWATER RULE: HAND-PUMPED WELLS

11.12(1)Applicability for Hand-Pumped Wells

For groundwater systems with hand-pumped wells, the supplier must comply with the requirements specified in this rule unless otherwise determined by the Department.

(a) Only suppliers of transient non-community groundwater systems may operate hand-pumped wells.

11.12(2)Operating Requirements for Hand-Pumped Wells

(a) The supplier must operate and maintain hand-pumped wells in accordance with Department-approved hand-pumped well monitoring and operational criteria.

(i) The supplier must either submit criteria for Department approval or use the pre-approved criteria in the Department's Monitoring and Operational Guidance Handbook for Colorado Public Water Systems Utilizing Hand-Pumped Wells Which Do Not Provide Continuous Disinfection.

(b) The supplier must distribute a special public notice for hand-pumped wells.

(i) The supplier must post the special public notice on or within sight of the hand-pumped well whenever the well has the potential to supply water to the public.

(ii) The special public notice must include the following language and provide the specific information for the text in brackets:

(A) This hand pump serves unchlorinated well water. For more information, please contact [phone number of public water system owner, operator, or designee of the public water system].

(iii) The supplier must comply with the public notice requirements specified in 11.33(5)(e-f).

(c) For seasonally operated hand-pumped wells, the supplier must disinfect the well(s) no earlier than 30 days before opening for the season.

(d) For hand-pumped wells operated year-round, the supplier must disinfect the well(s) at least annually during the busiest month of operation.

11.12(3)Response to Hand-Pumped Well Sample Results

(a) If the result of any routine total coliform sample is positive for fecal coliforms or E. coli or a repeat total coliform sample is positive for total coliform, the supplier must:

(i) Close the hand-pumped well until a total coliform sample is absent of bacteria.

(ii) Disinfect the hand-pumped well before resuming operation.

5 CCR 1002-11.12

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