Connecticut Administrative Code

Regulations of Connecticut State AgenciesSec. 23-63-1—23-63-3. (Repealed) Repealed May 28, 1968. (See Regs. 23-61a-1 et seq.) AUTHORITY: Conn. Gen. Stat. § 23-63

Regulations of Connecticut State AgenciesSec. 23-65g-1. Voluntary registration for foresters (Repealed) Repealed June 11, 2014.(Effective August 26, 1988; Repealed June 11, 2014)Notes: For 2014 repeal, see Sec. 54 of Public Act 14-187. (June 11, 2014) AUTHORITY: Conn. Gen. Stat. …

Regulations of Connecticut State AgenciesSec. 23-65g-2. Voluntary registration for loggers (Repealed) Repealed June 11, 2014.(Effective August 26, 1988; Repealed June 11, 2014)Notes: For 2014 repeal, see Sec. 54 of Public Act 14-187. (June 11, 2014) AUTHORITY: Conn. Gen. Stat. § …

Regulations of Connecticut State AgenciesSec. 23-65h-1. Certification of forest practitionersGENERAL DEFINITIONS(a) The following terms shall have the meaning ascribed to them by section 23-65f of the general statutes: \"commercial forest practices\"; \"commercial forest products…

Regulations of Connecticut State AgenciesSec. 23-65j-1. Conduct of forest practitioners(a) DefinitionsFor the purposes of section 23-65j-1:(1) \"Certified forest practitioner\" means an individual certified as a forester, supervising forest products harvester or forest products h…

Regulations of Connecticut State AgenciesSec. 25-104-1—25-104-11. (Repealed) Repealed October 13, 1976. AUTHORITY: Conn. Gen. Stat. § 25-104

Regulations of Connecticut State AgenciesSec. 25-104a-1—25-104a-3. (Repealed) Repealed June 23, 1986. AUTHORITY: Conn. Gen. Stat. § 25-104a

Regulations of Connecticut State AgenciesSec. 25-104a-4—25-104a-10. (Repealed) Repealed June 23, 1986. AUTHORITY: Conn. Gen. Stat. § 25-104a

Regulations of Connecticut State AgenciesSec. 25-110-1—25-110-4. (Repealed) Repealed September 29, 1970. AUTHORITY: Conn. Gen. Stat. § 25-110

Regulations of Connecticut State AgenciesSec. 25-128-1—25-128-32. (Repealed) Repealed May 21, 1993. AUTHORITY: Conn. Gen. Stat. § 25-128

Regulations of Connecticut State AgenciesSec. 25-128-33. Title of regulationsThe provisions of chapter 482 of the Connecticut General Statutes and sections 25-128-33 to 25-128-64, inclusive, of the Regulations of Connecticut State Agencies relating to wells, shall be collectively…

Regulations of Connecticut State AgenciesSec. 25-128-34. Purpose of regulationsThe purpose of the regulations shall be to govern the construction, repair, development, and abandonment of wells and geothermal systems in order to safeguard the public health, to provide an adequate …

Regulations of Connecticut State AgenciesSec. 25-128-35. Scope of regulations(a) Well drilling contractors and registered drillers. The regulations shall apply to any person who engages in the industry, procedures, or operation, full time or part-time, for compensation or otherwi…

Regulations of Connecticut State AgenciesSec. 25-128-36. Definitions(a) Unless expressly stated otherwise, the following terms shall, for the purpose of the Connecticut Well Drilling Code and any permit or completion report filed pursuant to said code, have the meanings indicated…

Regulations of Connecticut State AgenciesSec. 25-128-37. Manner of construction(a) The construction of any well or geothermal bore hole shall be planned and carried out in a manner to guard against waste and contamination of groundwater resources. (b) Standing column wells shall …

Regulations of Connecticut State AgenciesSec. 25-128-38. Application of public health regulationsThe regulations for the construction of water supply wells shall be construed in a manner consistent with the provisions of sections 19-13-B51a to 19-13-B51m, inclusive, of the Regula…

Regulations of Connecticut State AgenciesSec. 25-128-39. Diameter, depth, and yield of water supply wells(a) All new water supply wells shall be of adequate diameter and depth to be capable of yielding the quantity of water required by the user. For the use of an individual house…

Regulations of Connecticut State AgenciesSec. 25-128-39a. Geothermal bore holes(a) The inside diameter of closed-loop geothermal bore holes shall be in accordance with the geothermal system manufacturer’s specifications to allow for the proper installation of piping and grout. Wh…

Regulations of Connecticut State AgenciesSec. 25-128-39b. Closed-loop geothermal system fluid(a) All chemicals used or added to fluids circulating through a closed-loop geothermal system for heat exchange, and the amount of chemicals used or added, shall be those specified by the…

Regulations of Connecticut State AgenciesSec. 25-128-39c. Closed-loop geothermal system piping(a) The only acceptable materials for the underground portion of a closed-loop geothermal system are as follows: (1) Copper, that has a cathodic protection system;(2) High density, polye…

Regulations of Connecticut State AgenciesSec. 25-128-39d. Fluids used in open-loop geothermal systemsOpen-loop geothermal wells shall use only the natural groundwater, and no additives or other fluids are permitted. (Effective July 8, 2022) AUTHORITY: Conn. Gen. Stat. § 25-128

Regulations of Connecticut State AgenciesSec. 25-128-40. Pumps and pumping equipment(a) Pumps and pumping equipment shall be installed in the well to make the most efficient use of well storage. (b) Pumps and pumping equipment shall be located to permit convenient access for insp…

Regulations of Connecticut State AgenciesSec. 25-128-41. Location and protection of water supply wellsThe location of any water supply well upon premises shall be subject to approval by the local health officer of the municipality in which such premises are located, and shall be …

Regulations of Connecticut State AgenciesSec. 25-128-41a. Location of closed-loop geothermal systems(a) The following are the separating distance specifications for all closed-loop geothermal systems. Distances cited are minimum separating distances based on horizontal measuremen…

Regulations of Connecticut State AgenciesSec. 25-128-42. Drilling of water supply wells(a) Water supply wells shall be so constructed that a pump of capacity equal to the desired yield can be installed and operated for different yields. (b) Any water used shall be disinfected or …

Regulations of Connecticut State AgenciesSec. 25-128-43. Casing of drilled wells(a) The bottom end of the primary casing shall be equipped with a hardened drive shoe of the appropriate size. (b) The casing shall extend at least six (6) inches above the land surface. Annular space…

Regulations of Connecticut State AgenciesSec. 25-128-44. Length of casing, drilled wellsA twenty (20) foot minimum length of casing pipe shall be required in the construction of any drilled well, subject to the following exceptions for specific, geological and hydrological condit…

Regulations of Connecticut State AgenciesSec. 25-128-45. Length of casing, gravel wells(a) The length of the casing in a gravel well shall be such that the pumping level does not drop below the top of the screen. (b) In conditions of aquifers alternated with silt clay and other u…

Regulations of Connecticut State AgenciesSec. 25-128-46. Well screens(a) Any well constructed to obtain water from an unconsolidated formation may be equipped with a screen, for the purpose of preventing the entrance of formation material into the well after the well has been dev…

Regulations of Connecticut State AgenciesSec. 25-128-47. Gravel packed wells, gravel(a) The gravel in a gravel packed well shall be composed of material that does not react chemically with the water in the well, and will not create or enhance encrustation or corrosion. (b) The gr…

Regulations of Connecticut State AgenciesSec. 25-128-48. Gravel packed wells, constructionIn a gravel packed well in which the top of the gravel does not extend inside the outer casing, a bentonite plug of at least five (5) feet in thickness shall be placed in the annular space d…

Regulations of Connecticut State AgenciesSec. 25-128-48a. Annular space(a) Unless otherwise specified in section 19-13-B51f of the Regulations of Connecticut State Agencies, any annular space between the outside of the piping or casing and the natural materials penetrated by a we…

Regulations of Connecticut State AgenciesSec. 25-128-49. Well head completion and equipmentThe completion of the well head and the equipment used shall be as follows:(a) The top of the casing shall be cut off reasonably smooth and level.(b) In the event the well head is enclosed,…

Regulations of Connecticut State AgenciesSec. 25-128-49a. Geothermal bore hole terminationGeothermal bore holes shall be terminated a minimum of four (4) feet below the proposed finished grade and shall be fed to the point of termination. If piping running between bore holes and …

Regulations of Connecticut State AgenciesSec. 25-128-50. Plumbness and alignment of wellsAll gravel packed wells, and all wells equipped with pumps having vertical shafts that require plumbed and aligned walls, shall be tested for plumbness and alignment in accordance with standa…

Regulations of Connecticut State AgenciesSec. 25-128-51. Tests of yieldAll new and repaired water supply wells, with the exception of repairs limited to well casing extensions, shall be tested for yield and capacity, as provided by section 19-13-B51k of the Regulations of Connect…

Regulations of Connecticut State AgenciesSec. 25-128-52. Disinfection of wellsAll wells shall be disinfected by chlorination as provided by section 19-13-B51k (c) of the Regulations of Connecticut State Agencies when such wells are constructed, repaired or developed. (Effective S…

Regulations of Connecticut State AgenciesSec. 25-128-53. Construction of non-water-supply wells and geothermal boreholesAll non-water-supply wells and all geothermal bore holes shall be constructed, repaired, and maintained in such a manner that they are not a source or cause of …

Regulations of Connecticut State AgenciesSec. 25-128-54. Maintenance and repair of wells, geothermal systems and pumping equipmentAll wells and geothermal systems shall be maintained in a proper condition to conserve and protect groundwater resources, and shall not be a source or…

Regulations of Connecticut State AgenciesSec. 25-128-55. Promulgation of construction standardsThe regulations for the construction, maintenance, and repair of wells and geothermal systems, shall be promulgated in cooperation with the Department of Public Health and the Departmen…

Regulations of Connecticut State AgenciesSec. 25-128-55a. Period of responsibilityThe well drilling contractor shall be responsible for a period of one (1) year from the date of completion of work performed on the well to insure that the physical construction of the well meets th…

Regulations of Connecticut State AgenciesSec. 25-128-56. Abandonment of wells, responsibility(a) Any well that is abandoned shall not be a source or cause of contamination or pollution of groundwater resources. Abandonment procedures shall be performed or directed only by a regis…

Regulations of Connecticut State AgenciesSec. 25-128-57. Procedure of abandonmentIn the event of abandonment of any water supply well or other type of well the proper procedure and materials shall be used as follows: (a) The well shall be plugged to prevent the entrance of surfac…

Regulations of Connecticut State AgenciesSec. 25-128-57a. Abandonment of geothermal systemsWhen abandoning a geothermal system, closed-loop geothermal fluid shall be displaced with bentonite grout or a substance approved by the Department of Consumer Protection in consultation wi…

Regulations of Connecticut State AgenciesSec. 25-128-58. (Repealed) Repealed May 21, 1993. AUTHORITY: Conn. Gen. Stat. § 25-128

Regulations of Connecticut State AgenciesSec. 25-128-58a. [Contractor-limited to well water-supply drilling W-1] (Repealed) Repealed July 8, 2022.(Effective May 21, 1993; Repealed July 8, 2022) AUTHORITY: Conn. Gen. Stat. § 25-128

Regulations of Connecticut State AgenciesSec. 25-128-58b. [Contractor-limited to well non water-supply drilling W-3] (Repealed) Repealed July 8, 2022.(Effective May 21, 1993; Repealed July 8, 2022) AUTHORITY: Conn. Gen. Stat. § 25-128