Welcome to the new website for Columbus and Central Ohio Systems. Need help managing and billing your tenants for utility service? We can help. We have over 8 years of experience installing meter systems and managing customer billing for all types of property owners. Click below to see how CCOS can help you! .

Directory of Water at CSU. For the list of funded projects. For the complete seminar schedule.

Click on a Product Category below. Inexpensive Fast - Simple - Semi-quantitative Water Testing in Single and Combination Kits. Total Alkalinity - pH Combination. Total - Free Chlorine Combination. Compare Drinking and Bottle Water. Drinking Water Basic Tests Plus.

Water Temperature Influences in Rivers and Streams. Water Temperature Patterns in Lakes. Water Temperature Effects on Fish and Aquatic Life. Water Color Odor and Taste. Water Turbidity Effects on Fish and Aquatic Life. Water Turbidity Effects on Fish. Science Fair Water Projects focusing on common water quality parameters and examples of relationships with our fresh water resources.

Water Filters - Water Filtration - Water Filter Parts. Hurricane Katrina Water Impacts Informational Blog. Approved water filters, water filter cartridges, housings, and filtration systems. Taste Odor Sediment Water Filters. Filter Housings - Single Filter. Filter Housings - Multiple Filters. Using our filters, filtration systems, filter parts.