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41 , AQUA ENGINEERS <br /> ,5ti LUPLOYET7 OWNED CONVI%NN' <br /> Punalu'u Water System disinfection is accomplished with the addition of sodium hypochlorite. <br /> Sodium Hypochlorite is purchased in 300-gallon totes,transferred into a 55-gallon drum,and injected <br /> and into the water system when Well A is in operation. Chlorine residual is checked and recorded <br /> three times per week at the one-million-gallon storage tank. On the first Tuesday of every month <br /> water samples are drawn at a Department of Health designated sample point and submitted to the <br /> State of Hawaii, Hilo Laboratory for analysis. Each sample is analyzed for Total Coliform bacteria. <br /> Chlorine residual is tested at the time of sampling. Every year water samples are collected and <br /> analyzed for disinfection By-products. The current sampling schedule requires testing for Lead and <br /> Copper every three years and Radiological samples collected every nine years. <br /> Consumer Confidence Reports are filed each year in June with the State of Hawaii,Safe Drinking Water <br /> Branch and distributed to all Punalu'u Water System customers. <br /> Ninole Pump station is provided backup power by a 250 KW Kohler diesel generator. <br /> 3. Potable Water System Infrastructure <br /> Ninole Well A(8-0831-002) <br /> Total Depth —172 feet, casing is 18-inches, Solid Casing—to 117 feet, Perforated casing to 147 feet, <br /> it is a public municipal well drilled in 1969. Well is operational. The existing pump was replaced in <br /> 2011 and the motor in 2018. 100-amp breaker was upgraded to a 300 am breaker in 2019. Pump <br /> control valve is 8" and operational. Well starts and stops using a timer that is set to pump for 3 <br /> hours per day from 7:00am— 10:00am. Well was flow tested in 2011 and registered a pumping rate <br /> of 730 gallons per minute. <br /> Ninole Well B(8-0831-003) <br /> Total Depth —172 feet, casing is 18-inches, Solid Casing—to 112 feet, Perforated casing to 147 feet. <br /> Well was drilled in 1971. Well B designated use is currently listed as golf course irrigation well. Well <br /> B is not operational; Well B has been offline for 5 years plus. <br /> 12 Inch Flow Tube <br /> Meter does not work, daily and monthly flows are calculated and reported by multiplying pump run <br /> time hours (RTH) X 730 (GPM) gallons per minute. <br /> One Million Gallon Concrete Storage Tank <br /> Tank is constructed of concrete and reinforced steel. Tank is 20 feet tall and has a diameter of 92 <br /> feet. There is a ladder mounted on the side of the tank to provide access to the top where there is <br /> an entrance hatch and access to the float control. Tank is not fenced in and there is no gate at the <br /> start of access dirt road. Located at the tank site are abandoned golf course booster pumps. Tank <br /> is leaking form the bottom from two locations, <br /> 31Page <br /> Exhibit A <br /> Page 3 of 12 <br />