One of the most important requirements of your Construction Generic Permit (CGP) is the National Pollutant Discharge Elimination System (NPDES) Rain event Inspections. In the State of Florida, NPDES inspections have 2 components: routine inspections and rain event inspections.
So, what is the difference between them? The most significant difference between the two is frequency. Routine inspections must be conducted once every 7 days, not once a calendar week. There should never be a lapse of more than 7 days between routine inspections. A routine stormwater inspection involves a thorough systematic approach to stormwater management infrastructure and practices to ensure that they are functioning as intended and in compliance with regulations. A routine inspection will take time to effectively assess, review, discover, and document the appropriate compliance inspection criteria.
Rain event inspections are weather dependent. Storm event inspections are based on rainfall measurements. A storm event is defined as a rainfall event producing more than 0.5 inches of rain, provided the rainfall occurs without a break of more than four (4) consecutive hours.
For example: if it rains 0.3 inches from 2:00–3:00 p.m., and then later 0.3 inches from 9:00–11:00 p.m., this would not be considered a single storm event of 0.6 inches. Because there was more than a 4-hour gap between the two rainfalls, they count as two separate rainfall events, each totaling 0.3 inches.
A key requirement under the NPDES program is that stormwater site inspections must be completed within 24 hours after a rain event ends. The State of Florida does not allow exceptions for weekends or holidays, and neither does KCI. We continuously track rainfall at your site using reliable local weather stations and sophisticated applications, allowing us to monitor conditions daily.
Our qualified inspectors are committed to being on-site within 24 hours of any qualifying rain event, ensuring compliance without interruption, even on weekends and holidays. This summer has been especially wet and rainy, making it a busy season for everyone. Even so, we are ready when you are! Need assistance? Call us today at 888.346.7779.
