California Water Well Standards, DWR Bulletin 74 ... - County of Glenn

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~.Introducing.Combinationsspecifically-formulated chemicals into a well; and,of the above.Hydraulic fracturing (hydrofracturing) is sometimes an acceptable well development and redevelopmentmethod when properly performed. Good quality water shall be used in hydrofracturing. The water shall bedisinfected prior to introduction into a well. Material used as 'propping' agents shall be free of pollutants andcontaminants, shall be compatible with the use of a well, and shall be thoroughly washed and disinfected priorto placement in a well.Development, redevelopment, or reconditioning by use of specially designed explosive charges is in some cases,another acceptable development method. Explosives shall be used with special care to prevent damage to thewell structure and to any natural barriers to the movement of poor-quality water, pollutants, and contaminants.Explosives shall only be used by properly-trained personnel.Wells subjected to chemicals or explosives during development, redevelopment, or reconditioning operationsshall be thoroughly pumped to remove such agents and residues immediately after the completion ofoperations. Chemicals, water, and other wastes removed from the well shall be disposed of in accordance withapplicable local, State, and federal requirements. The enforcing agency should be contacted regarding theproper disposal of waste."-27-
Part III.81 -28-Destruction of WellsSection 21. Definition of "Abandoned" Well.Section 21 (page 52 of Bulletin 74-81) has been revised as follows:"A well is considered 'abandoned' or permanently inactive if it has not been used for one year, unless theowner demonstrates intention to use the well again. In accordance with Section 24400 of the CaliforniaHealth and Safety Code, the well owner shall properly maintain an inactive well as evidence of intention forfuture use in such a way that the following requirements are met:"(1) The well shall not allow impairment of the quality of water within the well and ground waterencountered by the well.(2) The top of the well or well casing shall be provided with a cover, that is secured by a lock orby other means to prevent its removal without the use of equipment or tools, to preventunauthorized access, to prevent a safety hazard to humans and animals, and to prevent illegaldisposal of wastes in the well. The cover shall be watertight where the top of the well casingor other surface openings to the well are below ground level, such as in a vault or below knownlevels of flooding. The cover shall be watertight if the well is inactive for more than fiveconsecutive years. A pump motor, angle drive, or other surface feature of a well, when incompliance with the above provisions, shall suffice as a cover.(3) The well shall be marked so as to be easily visible and located, and labeled so as to be easilyidentified as a well.(4) The area surrounding the well shall be kept clear of brush, debris, and waste materials."If a pump has been temporarily removed for repair or replacement, the well shall not be considered'abandoned' if the above conditions are met. The well shall be adequately covered to prevent injury to peopleand animals and to prevent the entrance of foreign material, surface water, pollutants, or contaminants intothe well during the pump repair period."Section 23. Requirements for Destroying Wells.Subsection A, Item 1 (page 53 of Bulletin 74-81) and Subsection B, Item 1, (page 54, of Bulletin 74-81) havebeen changed. The remainder of Section 23 is unchanged.Subsection A, Item 1 has been revised as follows:.disposal"1. Obstructions. The well shall be cleaned, as needed, so that all undesirable materials,including obstructions to filling and sealing, debris, oil from oil-lubricated pumps, orpollutants and contaminants that could interfere with well destruction are removed fordisposal.The enforcing agency shall be notified as soon as possible if pollutants andcontaminants are known or suspected to be in a well to be destroyed. Well destructionoperations may then proceed only at the approval of the enforcing agency.The enforcing agency should be contacted to determine requirements for properof materials removed from a well to be destroyed."
Page 1 and 2: --1#~Water wells .1Cathodic protect
Page 4 and 5: . ~~Bulletin 74-81)N. KennedyResour
Page 6 and 7: ~vState of CaliforniaPETE WILSON, G
Page 8 and 9: ~ viiForewordOrganization.TABLE OF
Page 10 and 11: ~ ix(4) Glass Fiber Reinforced Resi
Page 12 and 13: E~B. Sealing Conditions. 421. Tempo
Page 14 and 15: ~CATHODIC PROTECTION WELL STANDARDS
Page 16 and 17: 5.~Introduction:Figure 1.Years DWR
Page 19 and 20: GENERAL INTRODUCTIONImproperly cons
Page 21 and 22: Figure 1. YEARS DWR WELL STANDARDSB
Page 24 and 25: .9-REVISIONS TO WATER WELL STANDARD
Page 26 and 27: ~STANDARDSPart I. GeneralSection 1.
Page 28: ~B. c.-13-Many variables are involv
Page 32 and 33: "8. 2.casing and the borehole wall
Page 34 and 35: d. ~c.water shall be used if less s
Page 36 and 37: 3. Foundation and Transition Seals.
Page 38 and 39: -23-otherwise approved by the enfor
Page 40 and 41: Thermoplastic well casing that may
Page 44: ~-29-
Page 47: Advances in analytical and environm
Page 50 and 51: Nested monitoring wells consist of
Page 52 and 53: c.STANDARDSPart I.GeneralSection 1.
Page 54 and 55: 1.Part II.Monitoring Well Construct
Page 56 and 57: 1. 3.casing shall in turn be at lea
Page 58 and 59: c.Casing spacers shall be designed
Page 60 and 61: ~ 1.Section 12. Casing.The term "ca
Page 62 and 63: B. c. E.Over~um~ing and Pum~ Surgin
Page 64 and 65: 2. b.Section 19. Requirements for D
Page 66 and 67: 3. 5. E.freefall only where the int
Page 69 and 70: INTRODUCTIONMost wells in Californi
Page 72: Many cathodic protection wells have
Page 75 and 76: Need for Cathodic Protection Well S
Page 77 and 78: (Division 3, Chapter 9, California
Page 79 and 80: 3. B.E. c.consolidation after place
Page 81 and 82: for surface construction features a
Page 83 and 84: ~Part III.Destruction of Cathodic P
Page 85 and 86: E.these standards, or standards ado
Page 88 and 89: ~APPEN DIX ADefinition of Terms-A m
Page 91: National Association of Corrosion E

California Water Well Standards, DWR Bulletin 74 ... - County of Glenn

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