Beulah Creek Housing Water Supply

Initial inspection of small water system serving a housing community. Water system has 26 connections and serves a population of approximately 70. Source Water: Deep well (Well Tag #111170) is the sole primary source. Well stick-up was greater than 30 centimeters. It is recommended to lock the well cap to prevent unauthorized access. The Beulah Creek is located approximately 70 meters from the wellhead. An ephemeral stream is located approximately 9 meters from the wellhead. No other sources of contamination observed within 30 meters of wellhead or in submitted reports and plans. A 2021 Level 2 Hydrogeological Investigation determined the well to be at low risk of pathogens. This conclusion is subject to change with more information. Treatment: Consists of cartridge filters (5 and 1 micron) as well as chlorination. Operator to ensure chlorine concentration is sampled and recorded in storage tank and at furthest point in distribution system. Organic compounds in the water may react with chlorine to form Disinfection By-Products (DBPs). It is recommended to test for DBPs, including Trihalomethanes (THMs) and Haloacetic Acids (HAAs). Storage: Consists of a single 3000 US gallon storage tank. Tank was in good condition at time of inspection. Operator to ensure access lid is secured against unauthorized access. Distribution system: Water system serves housing project. Operator to ensure cross-connections do not occur in distribution lines. It is recommended to develop a flushing program to remove stagnant water from dead end lines. Water usage and a routine leak detection program should be established. It is recommended each connection have a water meter to monitor use. Emergency response plan, maintenance, and documentation: Operator to update ERP and provide a copy to the EHO. The ERP must be reviewed annually and updated as needed. Drought response must be included in the plan. Emergency back-up water supply is from bulk hauled water. It is recommended to monitor water levels in well and establish water restrictions when required. A copy of the ERP must be kept on site and provided to the EHO when requested. Annual reports must be completed annually and are due by June 30th for the previous year. Annual reports must be made available to water users upon request. Operator to ensure chlorine testing is conducted routinely. Chlorine is to be sampled in the storage tank and in the furthest point in the distribution system. Chlorine residuals in the distribution system should be maintained between 0.2-2 ppm. Chlorine test kits must be appropriate for drinking water and sensitive to at least 0.1 ppm. Chlorine test results must be documented and made available upon request. Operator to ensure filter changes and maintenance are carried out at the manufacturer's specifications or as needed. Maintenance records are to be maintained and kept up to date. Water sampling: Bacteriological samples are to be collected bi-weekly or at the direction of the drinking water officer. Chemical samples must include the minimum chemical parameters for groundwater and collected every 5 years or at the direction of the EHO. The water system is approved to operate with the following terms and conditions: 1. Water system components include the source (Well Tag #111170), treatment consisting of filtration and chlorination, a 3000 US gallon storage tank, and distribution system with 26 connections. Changes to the water system require authorization from the Drinking Water Officer before implementation. 2. A chemical analysis of untreated/raw water must be conducted in accordance with the list of parameters specified in the Island Health Source Water Assessment Guideline Appendix B: Minimum Sampling Parameters for Ground Water Sources at a frequency of no less than once every 5 years or at the frequency established by the Drinking Water Officer. Maximum acceptable concentrations must comply with the Guidelines for Canadian Drinking Water Quality. 3. The water supplier must provide an operator with training acceptable to the Drinking Water Officer to operate the water supply system at all times. 4. The water supplier must verify secondary disinfection by way of testing of chlorine disinfectant concentration levels at significant locations within the distribution system, including after the storage tank and in the furthest point in the distribution system. A concentration of 0.2 mg/L - 2 mg/L is required at all points in the distribution system.