The DRUC operates a certified laboratory at the water treatment plant on Normandy Reservoir. The laboratory conducts hundred of tests and quality checks on the water every day to insure that the water produced is totally safe and free of objectionable tastes or odors. The DRUC laboratory operates twenty-four hours a day on every day of the year.
In addition, the DRUC has regulatory compliance testing performed by an EPA certified laboratory and all results are submitted to the State of Tennessee, Department of Environment and Conservation. Results of all testing is available on this web site or by mail or fax on request.
The DRUC filter plant operators continuously monitor the treatment process twenty-four hours a day. There is an operator present at the plant every minute of every day. All operators are certified by the State of Tennessee and are monitoring the following major parameters.
MAJOR PROCESS PARAMETERS: Raw Water Conditions and Flow Rate, Preoxidation-Disinfection Efficiency, Coagulant Dose – Chemical Streaming Current, Colloidal Material Flocculation, Clarifier Settling Conditions, Filtered water Pressure Loss (how clean is each filter), Filtered Water Turbidity (clarity) from each filter, Filtered Water Particle Counts, Filtered Water pH, Finished Water Disinfection Efficiency, Finished Water Flow Rate, Finished Water Pressure, and Elevated Water Tank Levels.
PHYSICAL OR AESTHETIC PARAMETERS MONITORED ON THE DRINKING WATER: Finished Water Color, Finished Water Odor, Finished Water pH, Finished Water Taste, Finished Water Temperature, and Finished Water Turbidity (clarity).
MICROBIOLOGICAL PARAMETERS: The water leaving the treatment plant and the water throughout the distribution system is monitored constantly for bacteriological quality. Samples are analyzed daily for Total Coliform and Fecal Coliform bacteria. None of these bacteria are ever found in the water.
CHEMICAL PARAMETERS MONITORED ON THE DRINKING WATER:
| Primary Inorganics | Asbestos | Volatile Organics | Synthetic Organics |
| Arsenic | Asbestos Fibers | n-Propylbenzene | Hexachlorobenzene |
| Antimony | Radionuclides | Styrene | 3-Hydroxycarbofuran |
| Barium | Gross Alpha Particles | Tetrachloroethane | Methomyl |
| Beryllium | Volatile Organics | Tetrachloroethylene | Metolachlor |
| Cadmium | Bromobenzene | Toluene | Metribuzin |
| Chromium | Bromochloromethane | Trichlorobenzene | Oxamyl |
| Copper | Bromodichloromethane | Trichloroethane | Picloram |
| Cyanide | Bromomethane | Trichloropropane | Propachlor |
| Fluoride | Butylbenzene | Trimethylbenzene | Simazine |
| Lead | Chlorobenzene | Xylene | Benzo(a)pyrene |
| Mercury | Chlorodibromomethane | Synthetic Organics | Di(2-ethylhexyl)adipate |
| Nickel | Chloroethane | Altachlor | Di(2-ethylhexyl)phthalate |
| Nitrate | Chloromethane | Atrazine | Endothall |
| Selenium | o-Chlorotoluene | Carbofuran | Glyphosate |
| Thallium | p-Chlorotoluene | Chlordane | Hexachlorocyclopentadiene |
| Primary Organics | Dibromomethane | Heptachlor | |
| Benzene | m-Dichlorobenzene | Heptachlorepoxide | |
| CarbonTetrachloride | o-Dichlorobenzene | PCB | |
| Dichloroethane | Dichlorodifluoromethane | Pentachlorophenol | |
| Dichloroethylene | Dichloroethane | 2,3,7,8-TCDD (Dioxin) | |
| Endrin | Dichloroethylene | Aldicarb | |
| Lindane | Dichloromethane | Aldicarb Sulfone | |
| Methoxychlor | Dichloropropane | Aldicarb Sulfoxide | |
| Paradichlorobenzene | Dichloropropene | Aldrin | |
| Toxaphene | Ethylbenzene | Butachlor | |
| Trichloroethane | Fluorotrichloromethane | Carbaryl | |
| Trichloroethylene | Hexachloro-1,3-butadiene | Dalapon | |
| VinylChloride | Isopropylbenzene | Dicamba | |
| 2,4-D | p-Isopropyltoluene | Dieldrin | |
| 2,4,5-TP (Silvex) | Naphthalene | Dinoseb | |
RAW WATER PARAMETERS MONITORED (NORMANDY LAKE WATER): Raw Water Alkalinity, Raw Water Bacterial Count, Raw Water Fluoride, Raw Water Hardness, Raw Water pH, Raw Water Temperature, Raw Water Algal Content, and Raw Water Turbidity