Cross Connection Control
A cross-connection is any unprotected actual or potential physical connection or structure arrangement of piping or fixtures between a consumer's water system and the public potable water system through which it is possible to introduce into any part of the public potable water system any used water, industrial fluid, gas, liquid, solid, or any other substance. Chemical pollutants or even just sewage could be introduced into the potable water system in those areas. It is UPH's concern that this does not happen.
Illicit Discharge, Detection and Elimination: According to the 1996 National Water Quality Inventory, stormwater runoff is a leading source of water pollution. Every year thousands of gallons of water from storms and snowmelt enter the storm drains of Fort Collins. This runoff picks up and carries numerous contaminants and pollutants (pesticides, oils, metals, sediment, animal waste, etc.) and carries them into our storm drains. This water DOES NOT go to treatment plants as sewer waters do. Storm drains are set up to divert excess water and flow directly into the Poudre River.
What is an illicit discharge?
An illicit discharge is any discharge to the storm sewer system that is not composed entirely of stormwater, except for a short list of allowable discharges (see below). Illicit discharges include runoff from contaminated sites and deliberate dumping of contaminants that drain untreated into our waterways. Parameters of special concern include heavy metals, toxics, oil and grease, solvents, nutrients, pathogens, and bacteria.
Allowable Non-Stormwater Discharges
Following is a list of non-stormwater discharges that are allowed under the MS4, but only as long as they are not a “significant contributor of pollution.”
- Landscape irrigation
- Lawn watering
- Diverted stream flows
- Irrigation return flow
- Rising groundwater
- Uncontaminated groundwater infiltration
- Uncontaminated pumped groundwater
- Flows from riparian habitats and wetlands
- Water line flushing
- Discharges from potable water sources
- Foundation drains
- Air conditioning condensation
- Water from crawl space pumps
- Footing drains
- Individual residential car washing
- Dechlorinated swimming pool discharges
- Street wash water
Reporting an Incident
Someone washing paint down a storm drain, a river of antifreeze flowing from a vehicle, or sewage coming out of a manhole are all illicit discharges to the storm water system. If you observe an illicit discharge occurring on campus, please report the incident to CSU Police Department at 491-6425.
To learn more about stormwater and illicit discharges visit one of the following websites:
UPH tries to ensure that the campus community (i.e. laboratories) do not pollute the state waters. Some concerns include animal runoff in which UPH tries to prevent the raw sewage from the animals flowing into storm drains and polluting state water supplies.