2007 Water Quality Data
The City of Topeka Water Division provides service for nearly 155,000 people in the Topeka, Shawnee County, and surrounding areas. The raw water source is supplied by the Kansas River and is processed at the Topeka Water Treatment Facility located at I-70 and MacVicar.

The Kansas River has its beginning near Junction City and its tributary rivers include the Republican, Smoky Hill, Blue, Solomon, and Saline Rivers. The reservoirs in the Kansas River Basin that provide additional reserves for Topeka include Kanopolis, Waconda, Milford, Tuttle Creek and Wilson.

The tables below list the results of the many analyses performed in 2007 on your water. The first column of numbers labeled "MCL" lists the regulated level of contaminants that the United States Environmental Protection Agency and Kansas Department of Health and Environment have determined to be safe in your drinking water. The column labeled "Topeka Water Results" lists the 2007 summary of analyses results. Data for certain contaminants are more than one year old because regulations allow monitoring less than once per year because concentrations of these contaminants are not expected to vary significantly from year to year. The presence of a contaminant below the Environmental Protection Agency and KDHE Maximum Contaminant Level in drinking water does not necessarily indicate that a drinking water poses any health risk. As you will note from the following table, the water quality analyses results for the City of Topeka Water Division fell below the Maximum Contaminant Level for every regulated chemical, microbial, and radionuclide contaminant.

Organic Contaminants
There are a number of organic contaminants that are of concern in drinking water. This group includes: volatile organic contaminants that vaporize easily and are called VOC's; pesticides and herbicides that run off soils and contaminate river and reservoir water supplies; synthetic organic contaminants used in personal and manufacturing pursuits, and contaminants that occur as a by-product of water disinfection.

Values in Milligrams /Liter

Contaminant	MCL	Topeka Water Results
Alachlor	0.002	0.00023
Atrazine*	0.003	0.00067
Carbofuran	0.04	N.D.
Chlordane	0.002	N.D.
Endrin	0.002	N.D.
Heptachlor	0.0004	N.D.
Heptachlor epoxide	0.0002	N.D.
Hexachlorobenzene	0.001	N.D.
Lindane	0.0002	N.D.
Methoxychlor	0.04	N.D.
Simazine	0.004	N.D.
Toxaphene	0.003	N.D.
Benzene	0.005	N.D.
Carbon Tetrachloride	0.005	N.D.
Chlorobenzene	0.1	N.D.
p-Dichlorobenzene	0.075	N.D.
o-Dichlorobenzene	0.6	N.D.
1,2-Dichloroethane	0.005	N.D.
1,1-Dichloroethylene	0.007	N.D.
cis-1,2-Dichloroethylene	0.07	N.D.
trans-1,2-Dichloroethylene	0.1	N.D.
Dichloromethane	0.005	N.D.
1,2-Dichloropropane	0.005	N.D.
Polychlorinated Biphenyls	0.0005	N.D.
Ethylbenzene	0.7	N.D.
Styrene	0.1	N.D.
Trihalomethanes***	0.080	0.0565
Tetrachloroethylene	0.005	N.D.
Toluene	1.0	N.D.
1,2,4-Trichlorobenzene	0.07	N.D.
1,1,1-Trichloroethane	0.2	N.D.
1,1,2-Trichloroethane	0.005	N.D.
Trichloroethylene	0.005	N.D.
Vinyl Chloride	0.002	N.D.
Xylene	10	N.D.
Ethylene dibromide (EDB)	0.00005	N.D.
Hexachlorocyclopentadiene	0.05	N.D.
1-2-Dibromo-3-Chloropropane	0.0002	N.D.
Haloacetic acids (HAA5)***	0.06	0.0564
Chloramine**	4.0	2.93

Inorganic Contaminants
The Environmental Protection Agency sets standards for a number of inorganic contaminants that can affect health.

Values In Milligrams/Liter

Contaminant	MCL	Topeka Water Results
Antimony	0.006	less than 0.0010
Asbestos	7**MFL	less than 0.20
Arsenic	0.010	0.0011
Barium	2.0	0.031
Beryllium	0.004	less than 0.0010
Cadmium	0.005	less than 0.0010
Chromium	0.1	0.0024
Fluoride	4	0.83
Mercury	0.002	less than 0.00050
Nickel	0.1	0.0018
Nitrate	10	1.1
Selenium	0.05	0.0017
Thallium	0.002	less than 0.0010
Copper*	1.3 AL	0.024
Lead*	0.015 AL	0.0041

Microbiological Quality Bacteria and other harmful organisms are removed by disinfection and particle removal processes. The efficiency of these treatment techniques is monitored continuously to assure the absence of these organisms and clarity of the water.
Contaminant	MCL	Topeka Water Results
Viruses: (Lowest Calc. CT Value)	*TT > 1.0	2.2
Giardia lamblia: (Lowest Calc. CT Value)	*TT > 1.0	1.4
Total Chlorine: (mg/L)	**> 1.0	3.58
Total Coliforms: (Highest Monthly %)	less than 5.0%	0.0%
Fecal Coliforms: (Highest Monthly %)	less than 0.0%	0.0%
Turbidity: (Lowest Monthly %)	***less than 0.3 NTU	99.4%
Total Organic Carbon: (TOC)	****TT > 1.0	1.67

Radiological Quality
Radiological quality standards are set for specific contaminants and for the total radioactive element content.

Values in PicoCuries/liter

Contaminant	MCL	Topeka Water Results
Gross alpha	15 pCi/l	Less than 3 pCi/l
Ra-226	5 pCi/l*	Less than 1.0 pCi/l
Ra-228	5 pCi/l*	Less than 1.0 pCi/l

^*Combined MCL for Ra-226 and Ra-228 is 5 pCi/l

Unregulated Organic Contaminant Monitoring
(Not Associated with UCMR Regulation)

Metolachlor	2.8	PPB
Aldrin	N.D.	PPB
Butachlor	N.D.	PPB
Dieldrin	N.D.	PPB
Metribuzin	N.D.	PPB
Propachlor	N.D.	PPB
Deethylatrazine	0.65	PPB
Acetochlor	0.70	PPB

N.D. = Not Detected | PPB = microgram/liter

General Water Quality Parameters
There are many general, unregulated water quality parameters such as water hardness, iron and temperature. Below is a listing of  averages and historical, multi-year approximate normal ranges of many of those general water quality parameters.

Parameter	Topeka Average	Normal Range
pH	9.4	9.0 – 9.8
Chlorides (mg/L)	130	25 - 200
Sulfates (mg/L)	140	40 - 180
Total Hardness (mg/L as CaCO3)	139	90 - 200
Total Hardness (grains per gallon)	8	5 - 12
Calcium Hardness (mg/L as CaCO3)	112	65 - 170
Magnesium (mg/L)	9.5	8 - 26
Partial Alkalinity (mg/L as CaCO3 )	20	7 - 20
Total Alkalinity (mg/L as CaCO3 )	67	50 - 95
Total Dissolved Solids (mg/L)	490	200 - 600
Aluminum (mg/L)	0.030	0.0 - 0.2
Iron (mg/L)	<0.010	0.0 - 0.2
Manganese (mg/L)	<0.0010	0.0 - 0.01
Total Phosphorus (mg/L as P)	0.46	0.10 - 0.90
Potassium (mg/L)	7.7	6 - 12
Sodium (mg/L)	97	20 - 160
Temperature	62	33 - 80
Silica (mg/L)	5.3	5 - 10
Specific Conductance (umhos/cm)	662	250 -1050