![]() ![]() ![]() inadequate grouting or other faults during well construction.absence of a well cap or an improperly placed or loose well cap.a pathway for surface water entry to a well, such as:. ![]() if the well has iron bacteria or sulfur-reducing bacteria symptoms like slime (biofilm) or odorĪfter shock chlorination, bacterial contamination may reoccur if a source of contamination persists, such as:.if well water becomes muddy or cloudy after a rain.whenever the well is surrounded by flood waters (standing water around or covering the well casing).if a well system is opened for any installation, repair or maintenance.if annual water test results indicate the presence of bacteria.upon completion of a new well or when an unused well is returned to service.Shock chlorination is the most widely recommended means of treating bacterial contamination in home water systems. Shock chlorination is the process by which home water systems such as wells, springs, and cisterns are disinfected using household liquid bleach (or chlorine). Guidelines for using this treatment safely and effectively are listed below. What Kind of Chlorine Bleach Should Be Used?Ī standard treatment for sanitizing your well system is shock chlorination.When Will the Water Be Drinkable Again after Shock Chlorination?.What Precautions Should Be Taken Prior to Shock Chlorination?.Shock Chlorination and Temporary Arsenic Release.Is Shock Chlorination Always Effective?.When Should Shock Chlorination Be Used?.Revised by Uttam Saha, Leticia Sonon, Pamela Turner and David Kissel ![]()
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