Revised by Uttam Saha, Leticia Sonon, Pamela Turner and David Kissel Original manuscript by Jorge H. Atiles and Paul F. Vendrell • • • • • • • • • A standard treatment for sanitizing your well system is shock chlorination.

Convert X 3 Serial Key more. Guidelines for using this treatment safely and effectively are listed below. What is Shock Chlorination? 3x8 Decoder Vhdl Program on this page. Shock chlorination is the process by which home water systems such as wells, springs, and cisterns are disinfected using household liquid bleach (or chlorine). Shock chlorination is the most widely recommended means of treating bacterial contamination in home water systems.

COLIFORM BACTERIA & WATER WELL. Corroded or cracked well casing. Waterborne disease from these organisms typically involves flu-like symptoms such as. Home › Plumbing › Plumbing Repair › Well Pump Troubleshooting and DIY. The most common symptoms of well trouble. The well casing or even a broken water. Have a licensed water well contractor redevelop the well. Collapse of well casing or borehole due to age of well. Sediment in water. Compare current depth of well with original records. A collapsed well will show a shallower depth than the original well. Recondition the well. If repair is not economical, plug the well and redrill.

When Should Shock Chlorination Be Used? Shock chlorination is recommended: • upon completion of a new well or when an unused well is returned to service • if annual water test results indicate the presence of bacteria • if a well system is opened for any installation, repair or maintenance • whenever the well is surrounded by flood waters (standing water around or covering the well casing) • if well water becomes muddy or cloudy after a rain • if the well has iron bacteria or sulfur-reducing bacteria symptoms like slime (biofilm) or odor Is Shock Chlorination Always Effective? After shock chlorination, bacterial contamination may reoccur if a source of contamination persists, such as: • a nearby malfunctioning septic system • a pathway for surface water entry to a well, such as: • an improper well location • absence of a well cap or an improperly placed or loose well cap • inadequate grouting or other faults during well construction • a cracked well casing Shock chlorination is NOT a recommended method for treating recurring bacteria problems. The source(s) of such contamination should be identified and eliminated by a licensed well driller/contractor.

Another option is to install a continuous disinfection treatment system. Shock Chlorination and Temporary Arsenic Release Although shock chlorination will sanitize wells, it may temporarily increase the arsenic levels of water in areas where aquifer sediments contain high levels of arsenic (WDNR, 2008). Arsenic occurs naturally in some bedrock and aquifer sediments in the southern coastal plain (SCP) region of Georgia, and it has been found in drinking water from some private wells in this region. When the water table is lowered due to pumping of groundwater, the sediments in groundwater are exposed to oxygen. Oxygen helps in dissolving some of the arsenic contained in sediments. Similarly, because chlorine is a strong oxidant, it could dissolve arsenic from sediments and release it into the groundwater. If well owners have detectable levels of arsenic in water, the following steps may be useful: • Do not use either acid or alkaline bleach solution.

Solution with pH 6-7 is best. • Do not leave chlorine solutions inside well casings for longer times than prescribed (12-24 hours). • Well casings, holding tanks and pipes should be flushed thoroughly until no residual levels of chlorine are found.

• Well water for drinking should be tested for arsenic after shock chlorination to make sure the arsenic concentration is at a safe level (less than 10 ppb). What Precautions Should Be Taken Prior to Shock Chlorination?