
Siloam Springs, Arkansas | Municipal Water Utility Company | Public Service Announcement
Siloam Springs Waterworks municipal water supply may contain several concerning contaminants including Selenium, 1,1-Dichloroethane, Perfluorinated chemicals and Strontium, while also experiencing elevated water hardness levels. The community water system in Siloam Springs sources its supply primarily from Surface water to serve residents throughout the area.
What's in your tap water?
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Siloam Springs Waterworks Area Details

Area served:
Siloam Springs, Arkansas

Population served:
16985

Water source:
Surface water

Phone:
479-524-5136

Address:
1000 E. Ashley, Siloam Springs, AR 72761

3date
Contaminants Detected In Siloam Springs, Arkansas
Bromodichloromethane; Chloroform; Chromium (hexavalent); Dibromochloromethane; Dichloroacetic acid; Total trihalomethanes (TTHMs); Trichloroacetic aci… more

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Siloam Springs Waterworks
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by Siloam Springs Waterworks
Tested But Not Detected:
1,1,1,2-Tetrachloroethane; 1,1,1-Trichloroethane; 1,1,2,2-Tetrachloroethane; 1,1,2-Trichloroethane; 1,1-Dichloroethane; 1,1-Dichloroethylene; 1,1-Dichloropropene; 1,2,3-Trichlorobenzene; 1,2,3-Trichloropropane; 1,2,4-Trichlorobenzene; 1,2,4-Trimethylbenzene; 1,2-Dibromo-3-chloropropane (DBCP); 1,2-Dichloroethane; 1,2-Dichloropropane; 1,3,5-Trimethylbenzene; 1,3-Butadiene; 1,3-Dichloropropane; 1,4-Dioxane; 2,2-Dichloropropane; 2,4,5-T; 2,4,5-TP (Silvex); 2,4-D; 3-Hydroxycarbofuran; Acenaphthene; Acenaphthylene; Alachlor (Lasso); Aldicarb; Aldicarb sulfone; Aldicarb sulfoxide; Aldrin; Anthracene; Antimony; Arsenic; Atrazine; Baygon (Propoxur); Benzene; Benzo[a]anthracene; Benzo[a]pyrene; Benzo[b]fluoranthene; Benzo[g,h,i]perylene; Beryllium; Bromobenzene; Bromochloromethane; Bromomethane; Butachlor; Butyl benzyl phthalate; Cadmium; Carbaryl; Carbofuran; Carbon tetrachloride; Chlorate; Chlordane; Chlorodifluoromethane; Chloroethane; Chloromethane; Chrysene; cis-1,2-Dichloroethylene; cis-1,3-Dichloropropene; Cobalt; Cyanide; Dalapon; Di(2-ethylhexyl) adipate; Di(2-ethylhexyl) phthalate; Di-n-butyl phthalate; Dibenz[a,h]anthracene; Dibromomethane; Dicamba; Dichlorodifluoromethane; Dichloromethane (methylene chloride); Dieldrin; Diethyl phthalate; Dimethyl phthalate; Dinoseb; Diquat; Endothall; Endrin; Ethylbenzene; Ethylene dibromide; Fluoranthene; Fluorene; Glyphosate; Heptachlor; Heptachlor epoxide; Hexachlorobenzene (HCB); Hexachlorobutadiene; Hexachlorocyclopentadiene; Indeno[1,2,3-cd]pyrene; Isopropylbenzene; Lindane; m- & p-Xylene; m-Dichlorobenzene; Manganese; Mercury (inorganic); Methiocarb; Methomyl; Methoxychlor; Metolachlor; Metribuzin; Molybdenum; Monochlorobenzene (chlorobenzene); MTBE; n-Butylbenzene; n-Propylbenzene; Naphthalene; Nitrite; o-Chlorotoluene; o-Dichlorobenzene; Oxamyl (Vydate); p-Chlorotoluene; p-Dichlorobenzene; p-Isopropyltoluene; p-Xylene; Paraquat; Pentachlorophenol; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA); Phenanthrene; Picloram; Polychlorinated biphenyls (PCBs); Propachlor; Pyrene; Radium; combined (-226 & -228); Radium-226; Radium-228; sec-Butylbenzene; Selenium; Silver; Simazine; Styrene; tert-Butylbenzene; Tetrachloroethylene (perchloroethylene); Thallium; Toluene; Toxaphene; trans-1,2-Dichloroethylene; trans-1,3-Dichloropropene; Trichloroethylene; Trichlorofluoromethane; Vinyl chloride; Xylenes (total)

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Siloam Springs Waterworks
About Us
Where Does Our Water Come From?
The sources of our municipal water include rivers, lakes, streams, reservoirs, springs, and wells. Siloam Springs obtains surface water from the Illinois River. We also purchase treated surface water from Benton-Washington Regional Public Water Authority (PWA), which sources from Beaver Lake. Eastside Rural Water District customers receive water from Benton-Washington Regional PWA's treatment facility, while Vegetable Acquisition Corp. can receive water from either Siloam Springs Water Department or Benton-Washington Regional PWA.
Water Source Safety Assessment
The Arkansas Department of Health has completed Source Water Vulnerability Assessments for both Siloam Springs Water Dept. and Benton-Washington Regional Public Water Authority. These assessments evaluate contamination potential and inform source water protection planning. Based on multiple evaluation criteria, our water sources received a low susceptibility to contamination rating. Siloam Springs Water Dept. maintains an active source water protection program. Assessment summaries are available upon request.
Potential Contaminants in Water
As water moves over land or underground, it can pick up various substances from natural processes and human activities:
- Microbial contaminants (viruses, bacteria) from sewage treatment, septic systems, agricultural operations, and wildlife
- Inorganic contaminants (salts, metals) from natural sources or urban runoff, industrial discharge, oil/gas production, mining, or farming
- Pesticides and herbicides from agriculture, urban runoff, and residential uses
- Organic chemical contaminants from industrial processes, petroleum production, gas stations, and septic systems
- Radioactive contaminants that occur naturally or result from oil/gas production and mining
Health Risk Information
All water, including bottled water, contains some level of contaminants. This doesn't necessarily indicate a health risk. However, some people may be more vulnerable to contaminants, including those with compromised immune systems (cancer patients undergoing chemotherapy, organ transplant recipients, HIV/AIDS patients), the elderly, and infants. These individuals should seek advice from healthcare providers about their water consumption.
Lead and Water Safety
Elevated lead levels pose serious health risks, particularly for pregnant women and young children. Lead primarily enters water through service lines and home plumbing materials. While we provide high-quality water, we cannot control materials used in plumbing components. To minimize potential lead exposure, flush your tap for 30 seconds to 2 minutes before using water for drinking or cooking if it has been sitting for several hours. If concerned, consider having your water tested. Information about lead in water, testing methods, and exposure reduction strategies is available from the Safe Drinking Water Hotline or at http://www.epa.gov/safewater/lead.

For more information on your drinking water, visit the U.S. Environmental Protection Agency:
Siloam Springs Waterworks Drinking Water Company and EPASiloam Springs Waterworks Municipal Water Report Information
The Department of Water/Wastewater manages all water and sewer infrastructure in Siloam Springs. Their responsibilities include maintaining water mains, meters, towers, sewer lines, vents, and pumping stations throughout the city. The department also operates both surface water and wastewater treatment facilities.
Water and Sewer Emergency Contact Information
For any water or sewer emergencies, contact the Siloam Springs Water/Wastewater Department at 479-238-0921, or after hours at 479-524-4118. Always leave a message with your name, address, phone number, and a brief description of the issue. We recommend contacting the City before calling a plumber, as the problem may be in the City's infrastructure and could save you unnecessary plumber expenses. Note that the City does not reimburse for plumbing costs.
Preventing Grease Blockages
Grease is a primary cause of residential pipeline and sewer main clogs resulting in backups throughout the City. Proper grease disposal is essential for maintaining system function.
Sanitary Sewer Overflow (SSO) Prevention
Sanitary Sewer Overflows occur from blockages in the system, potentially allowing untreated sewage to flow into streets, lawns, and waterways.
Cold Weather Pipe Protection
Pipes freeze due to rapid temperature drops, inadequate insulation, and low thermostat settings. Both plastic and copper pipes can crack when frozen water expands, with even small cracks potentially leaking 250 gallons daily. Prevention tips include:
- Disconnecting outside water hoses
- Repairing leaking outdoor faucets
- Closing interior shutoff valves to outdoor fixtures and draining those pipes
- Using faucet insulation kits for outdoor spigots
- Applying heat tape on exposed pipes
- Allowing hot and cold water to drip overnight from faucets connected to pipes along exterior walls
Municipal Water Utility Company FAQ

For more information on your drinking water, visit the U.S. CDC:
Siloam Springs Waterworks Drinking Water Company and CDCFrequently Asked Questions
- When are City Council Meetings held? 4th Monday at 6 PM
- What is the process to request a re-zoning? Contact Building Inspector
- How can I find the zoning designation of a specific property? Maps available for viewing at city hall
- Where are city council meetings held? City Hall-council room
- What payment methods do you accept? Cash, Check, Money Order, Credit Card (Visa, MasterCard, or Discover)
- What can I pay outside of court? Fine and Court Cost
- Where and when can I pay my fine? Rockwood City Hall or online at rockwoodpolice.org
- What types of construction require building permits (fences, pools, remodels, decks, etc.)? Contact Building Inspector
- What is the business license process and fee? Initial license fee $15.00

Siloam Springs Waterworks provides municipal water services to the public of Siloam Springs and Siloam Springs, Arkansas.
Free Water Safety Report for Siloam Springs Waterworks. (limited time offer)

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