This standard describes the procedures for disinfection and bacteriological testing of wells for potable water service following construction, servicing, maintenance, or any other activity or event that might lead to contamination of the water. The chlorination procedures provided in this standard are for the gravel pack, well casing, pump, and appurtenant piping and are presented in the sequence in which they generally would be implemented.<\/p>\n
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| 7<\/td>\n | Foreword I.\tIntroduction. I.A.\tBackground.\u2003During construction of a well, the bore hole may become contaminated by surface-water inflow and undesirable fluids in formations through which the bore hole may penetrate. In addition, contamination may be introduced in a well by the dri I.B.\tHistory.\u2003This is the fourth edition of AWWA C654, Standard for Disinfection of Wells. The first edition was approved by the AWWA Board of Directors on Jan. 25, 1987. Subsequent editions were approved on June 15, 1997, Jan. 19, 2003, and Jan. 20, 2013 I.C.\tAcceptance.\u2003In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by NSF International (NSF) to develop voluntary third-party consensus standards and a certification program for direct <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | II.\tSpecial Issues.\u2003Disinfection of wells requires high levels of disinfectant to be applied to ensure bacteria and other potential pathogens are inactivated. Temperature and pH are two important factors affecting the disinfection process. Above a pH of 9 III.\tUse of This Standard.\u2003It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the particular application being considered. III.A.\tPurchaser Options and Alternatives.\u2003The following information should be provided by the purchaser: III.B.\tModification to Standard.\u2003Any modification of the provisions, definitions, or terminology in this standard must be provided by the purchaser. <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | IV.\tMajor Revisions.\u2003Major changes made to the standard in this revision include the following: V.\tComments.\u2003If you have any comments or questions about this standard, please call AWWA\u00a0Engineering & Technical Services at 303.794.7711, FAX at 303.795.7603, write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098, or email at standard <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | AWWA Standard SECTION 1: GENERAL Sec.\u20021.1\tScope Sec.\u20021.2\tPurpose Sec.\u20021.3\tApplication <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | SECTION 2: REFERENCES SECTION 3: DEFINITIONS <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | SECTION 4:\u2002REQUIREMENTS Sec.\u20024.1\tPreventive Actions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Sec.\u20024.2\tForms of Chlorine for Disinfection <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Sec.\u20024.4\tChlorination of Permanent Equipment and Material Used in Wells Sec.\u20024.5\tChlorination of Well After Permanent Equipment Is Installed <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Sec.\u20024.6\tDisposal of Contaminants SECTION 5:\u2002VERIFICATION Sec.\u20025.1\tBacteriological Testing <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Sec.\u20025.2\tDisinfection of Flowing Wells Sec.\u20025.3\tRecord of Compliance Sec 5.4\tOptional Sampling and Testing <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | SECTION 6:\u2002DELIVERY <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | APPENDIX A Chemical Requirements for 100-mg\/L Chlorine Solution Table A.1\u2003\tChlorine compound required to dose 100 ft of water-filled well at 100 mg\/L <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" AWWA C654-21 Disinfection of Wells<\/b><\/p>\n |