Annual Water Quality Report- 2020
Total Page:16
File Type:pdf, Size:1020Kb
2020 WATER QUALITY REPORT 2020 WATER QUALITY REPORT CITY OF NEWARK: NEWARK RESERVOIR BOOSTER PUMPS Annual Water Quality Report The Environmental Protection Agency (EPA) Newark meets or exceeds the water quality requires public water suppliers to provide standards of the Delaware Division of Public consumer confidence reports (CCR) to their Health Office of Drinking Water and the customers . These reports are also known as Environmental Protection Agency. The tables on annual water quality reports. The below report pages 4-6 of this report list those substances summarizes information regarding the sources found in our finished water during calendar year used (i.e. rivers, reservoirs, or aquifers), any 2019. detected contaminants, compliance and educational efforts. How the Water is Treated The City’s 317 million gallon reservoir provides a Drinking water, including bottled water, may At the Curtis Water Treatment Plant (CWTP), reliable source of raw water which can be treated reasonably be expected to contain at least small water from the White Clay Creek is clarified with and ready for drinking in times of heavy rain or amounts of some substances. The presence of alum and polymer and then filtered to remove drought. In an effort to keep sediment these substances does not necessarily indicate impurities. Chlorine is added to kill harmful accumulation in our water mains to a minimum, that water poses a health risk. In order to ensure bacteria and viruses. Finally, fluoride is added to we flush the entire system yearly. that tap water is safe to drink, the EPA prescribes the water to protect your teeth. regulations which limit the amount of certain Our treated water needs to remain fresh and contaminants in water provided by public water The South Well Field (SWF) Iron & Manganese retain sufficient chlorine for disinfection; as such, systems. The United States Food and Drug Removal Plant aerates well water by a forced air each month, we analyze 40 distribution system Administration regulations establish limits for blower to remove any volatile compounds and water samples for bacterial content and chlorine. contaminants in bottled water which must provide raise the pH. The water is then treated with Regulated substances are sampled as required. the same protection for public health. chlorine and pumped through green sand filters, which remove iron and manganese, in addition to More information regarding contaminants and filtering the water. Other chemicals added to the potential health effects can be obtained by calling water are fluoride, sodium hydroxide to further the EPA’s Safe Drinking Water Hotline at (800)- raise the pH, and polyphosphate to reduce the 426-4791. corrosiveness of the water. Newark’s High-Quality Water Managing the Distribution System The City of Newark Water Department has been City of Newark committed to providing high-quality water since The City maintains approximately 140 miles of 1888. As a result of our regular sampling and water main throughout the distribution system. Department of Public Works testing program, we are proud to report Seven tanks store enough water to last two days. And Water Resources 2020 WATER QUALITY REPORT | City of Newark 2 The Source of Your Water The adjacent map illustrates what source serves each section of the City. The South Well Field contains several wells that draw water from the sand and gravel Potomac and Columbia aquifers. The Curtis Water Treatment Plant has been withdrawing water from the White Clay Creek since 1992. The White Clay Creek is also the source of the water we use to fill the reservoir. Water in our reservoir is recirculated by a pump through an engineered wetlands moat extending around the perimeter. At the north end of the reservoir, the water flows through a special sand and gravel material before being returned to the reservoir. This wetland’s bench helps to clarify and remove nutrients from the water prior to being treated at the treatment plant. An aeration system (installed in 2016) assist in mixing the reservoir water resulting in uniform water quality from top to bottom. Protecting Our Resources the streams including the White Clay Creek. Source Water Assessment Additionally, the City is financially invested in assisting our upstream farmers to implement best In 1996, Congress amended the Safe Drinking management practices to better manage runoff Water Act, creating a new program titled Source from animal manure and minimize the risk of Water Assessment and Protection Program. Each waterborne pathogens. state is required to identify and evaluate all sources of water that are used as a drinking water White Clay Creek Watershed Groundwater Aquifers source within the state. The goal of the program is to assess the susceptibility of public water sources The White Clay Creek is designated as a National Preventing pollution is the top priority in to contamination and to promote and facilitate Wild and Scenic River, and Newark is actively protecting our groundwater supply. In 1991, the protection of these water sources. Customers involved in the White Clay Creek Wild and Scenic Newark developed and implemented Water should contact the City of Newark Public Works & watershed management plan. The plan delineates Resource Protection Regulations. The regulations Water Department at 302-366-7000 about how to a cooperative approach to resource management protect our drinking water supply from pollution obtain a copy of our surface and groundwater and watershed protection. Newark also that may be associated with inappropriate land assessments. Our surface and groundwater participates in the watershed-based Christina uses in the areas around our wells. assessments are also available online: Basin Water Quality Management Strategy, which http://delawaresourcewater.org/assessments is designed to protect and improve the quality of 2020 WATER QUALITY REPORT | City of Newark 3 Water System Update Report Prepared June 2020 NEWARK WATER FACTS POPULATION SERVED: ~40,000 Main Street Water Main Improvements METERED CUSTOMERS: ~10,000 ANNUAL AVERAGE PUMPAGE: 3.4 MILLION So why are these improvements necessary? GALLONS PER DAY First and foremost, improved fire protection. The original hydrant leads date back over 100 SERVICE AREA: 12 SQUARE MILES years. Unlike the water main they were not PURCHASED WATER SUPPLY: < 1% cleaned and lined in 2002 and were subject to mineral build-up and corrosion ultimately reducing flow capacity. The new hydrant leads, being 63% wider in Surface water treated at the Curtis Water Treatment As one would expect the City’s water system diameter, will Plant makes up roughly 63% of all drinkable water within has a long history when it comes to Main increase the the City. Street. The existing water main still in use flow rate. today dates back to 1888. The water main Simply put… was cleaned and relined with cement in 2002. more water Even being over 100 years old the water main can flow itself is in great shape; however, the hydrant through a 6” leads are smaller than the now standard 6” pipe than a 37% and original inline valves are no longer 4”. A total of The remaining 37% of water for our residents is pulled reliable. 14 new from various groundwater supply wells. hydrants and appurtenances were installed. Conservation Tips Check your toilet for leaks by putting Secondly, the addition of new inline valves food coloring in your will reduce the impact of a service disruption tank and see if the color during future repairs. A higher density of shows up in the toilet inline valves means that City crews can bowl without flushing. isolate a smaller section of water main which Leaking toilets can in turn minimizes the number of impacted waste up to 600 gallons customers. A total of 15 new inline valves per day. along Main Street were installed and added Turn the water off while to the system. brushing your teeth. During the summer of 2019, the City of Take shorter showers. Newark contracted with DelDOT’s contractor Use dishwasher and clothes washer for (ADEL Construction) to make repairs to the full loads only. water main along Main Street as part of Keep a bottle of cold water in the DelDOT’s Main Street paving and refrigerator. rehabilitation project. Pairing these two Water your lawn only when necessary. projects not only minimized the overall Water in the evening or early morning to impact on Main Street but allowed the reduce evaporation. upgrades to get performed prior to the road Avoid watering on windy days. improvements. Fixing a leaking faucet can save 140 gallons of water a week. The City of Newark Public Works and Use a bowl of water to clean and Water Resources Department would like to prepare vegetables, rather than letting acknowledge and thank the business and the faucet run. residents along Main Street for their To easily identify water saving products, cooperation and flexibility by adjusting to look for the WaterSense label when the water outages and boil water replacing faucets, toilets, and shower advisories. heads. For more water conservations tips, check out our website at http://cityofnewarkde.us 2020 WATER QUALITY REPORT | City of Newark 4 Annual Water Quality Report for the period of January 1 to December 31, 2019 Highest Range of Unit of Level Ideal Goal Highest Level Regulated Substances Levels Date Violation Major Sources Measure Allowed MCLG Detected Detected MCL Barium ppm 2 2 0.213 0.045 - 0.213 12/30/2015 N Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits Chromium ppb 100 100 2.5 1.7 - 2.5 12/30/2015 N Discharge from steel and pulp mills; Erosion of natural deposits Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer Fluoride ppm 2 2 0.8058 0 – 0.8058 2019 N and aluminum factories Methyl Tert-Butyl Ether ppb 10 0 0 0 2019 N Oxygenate for fuel (i.e.