Storm water runoff is water from rain or snowmelt that does not immediately infiltrate into the ground, and instead flows through natural or man-made conveyance or storage systems. Stormwater runoff volume is greater in areas with high proportions of impervious surfaces (e.g., paved roads, buildings, parking lots, etc.). Runoff from areas where industrial activities are conducted can contain pollutants when facility practices allow exposure of industrial...

Abrasive blast cleaning operations must comply with various federal and state air, waste, and water regulations. This guide was written to help this type of business better understand the environmental regulations that may affect their operations, and to provide additional resources and contacts for assistance.

Discharges of treated produced-water to surface waters are eligible for coverage under this general permit. There are two types of facilities generating these discharges. Exploration and Production (E&P) Waste Management Facilities are generally within an oil gas field; Commercial Disposal Facilities are generally offsite, receives E&P wastes and other types of waste waters.

The Colorado Department of Public Health and the Environment (CDPHE) has identified McPhee & Narraguinnep Reservoirs as not supporting their designated uses due to the presence of elevated fish tissue concentrations of mercury that have resulted in Fish Consumption Advisories. Mercury concentrations at the levels observed present a significant health risk to persons who consume listed fish from the reservoirs. Because McPhee & Narraguinnep Reservoirs...