Connecticut
Connecticut issues its own construction general permit. We have read NPDES General Permit for the Discharge of Stormwater from Construction Activities, Permit No. CTR100000 and list below the requirements we could cite to it, with the scope limits stated plainly. Screen your own acreage further down.
Who may prepare the plan
A credentialed preparer is requiredConnecticut requires a credentialed preparer. Treat the generated document as a complete draft for that person to review, adopt and sign. It is not by itself a compliant filed plan.
Qualifying routes
An independent reviewer is also required, and at 20 acres or more that reviewer must be from a different firm.
Coverage trigger
The project disturbs 3 acres, at or above the 1 acre threshold, so it needs permit coverage.
The trigger people miss is the second one. A half acre lot inside a 40 acre subdivision is covered, because the larger common plan of development or sale is what counts, not the lot.
Worked for a three acre site with the receiving water unconfirmed. Each line says why it attached to this site rather than in general. Check the notes above for the site sizes this permit does not cover.
The Application for authorization to discharge must include a copy of the Stormwater Pollution Control Plan (SPCP) -- CT's SWPPP equivalent -- meaning it must be complete before/at the time the application is submitted.
Include a copy of the Stormwater Pollution Control Plan. The electronic SPCP shall be in Adobe PDF format or similar publicly available format in common use.
At least 60 days prior to planned commencement for most projects; at least 90 days prior for sites disturbing more than 20 acres or discharging near tidal wetlands or impaired waters.
Why this applies here: This is the deadline for a new site. A transfer to a new operator or an emergency related project has a different deadline.
Be submitted to the Commissioner at least sixty (60) days prior to the planned commencement of the construction activity.
Standard NOT is submitted upon project completion (no fixed day-count from completion). For the Change-of-Permittee case, the original Permittee must submit the NOT within 30 days following approval of the new Permittee's application.
the original Permittee shall submit their Notice of Termination on or before thirty (30) days following the approval of an application filed by the new Permittee pursuant to Section 3.3.1.2.
At least once a week and within 24 hours of the end of a storm that generates a discharge, a Qualified Inspector shall inspect disturbed areas, outfalls, dewatering discharges, and all Control Measures.
Why this applies here: You have not confirmed whether the site discharges to an impaired or high quality water. If it does, the increased frequency applies instead and this answer changes.
At least once a week and within 24 hours of the end of a storm that generates a discharge, a Qualified Inspector (provided by the Permittee), shall inspect, at a minimum, the following: disturbed areas of the construction activity that have not been finally stabilized...
Qualified Inspector means an individual possessing either a professional license/certification related to civil engineering, landscape architecture, or soil science plus two years of erosion/sediment control experience, or certification by the CTDOT.
Why this applies here: This is why Basinwise cannot perform your inspections. The permit requires a trained person physically on the site.
"Qualified Inspector" means an individual possessing either (1) a professional license or certification issued by EPA ... or a professional organization recognized or approved by the Commissioner related to civil engineering, landscape architecture, soil science, and two years of demonstrable and focused experience in erosion and sediment control plan review, installation, inspection and/or report writing for residential and commercial construction projects in accordance with the Guidelines; or (2) certification by the CTDOT.
Where construction activities have permanently ceased or final grades are reached, stabilization and protection practices shall be initiated immediately.
Why this applies here: This applies at both land disturbance amounts.
Where construction activities have permanently ceased or when final grades are reached in any portion of the site, stabilization and protection practices as specified in the Guidelines or as approved by the Commissioner shall be initiated immediately and completed within seven (7) days.
24 hours to implement; 3 calendar days to incorporate into revised SPCP
Non-engineered corrective actions (as identified in the Guidelines) shall be implemented on site within 24 hours and incorporated into a revised SPCP within three (3) calendar days of the date of inspection unless another schedule is specified in the Guidelines.
Engineered corrective actions shall be implemented within 7 calendar days and incorporated into a revised SPCP within 10 calendar days.
Engineered corrective actions (as identified in the Guidelines) shall be implemented on site within seven (7) calendar days and incorporated into a revised SPCP within ten (10) calendar days of the date of inspection, unless another schedule is specified in the Guidelines or is approved by the Commissioner.
Where site disturbance occurs within 50 feet upgradient of a wetland or watercourse, a double row of sediment barriers must be installed between the disturbed area and the downgradient wetland or waters.
The Commissioner encourages the use of a one hundred (100) foot buffer from any wetland or watercourse. Where site disturbance occurs within fifty (50) feet upgradient of a wetland or waters a double row of sediment barriers (e.g. hay bales, silt fence, wattles, etc.) shall be installed...
Inspection records must be retained as part of the SPCP for 5 years after the date of inspection.
Why this applies here: The clock runs from permit expiry or termination, not from when the record was written, so on a multi year project every record stays live for the whole project plus three years.
Inspection records must be retained as part of the SPCP for a period of five (5) years after the date of inspection.
Your acreage, your receiving water, your answer. Runs in your browser, nothing is transmitted.
This is EPA's list, from the 2022 Construction General Permit. It does NOT govern in Connecticut, where the state issues its own permit and sets its own contents. It is here as a shape to expect, not as the requirement you will be held to.
Read the permit itself at the source document.
Connecticut issues its own construction general permit, and we have read NPDES General Permit for the Discharge of Stormwater from Construction Activities, Permit No. CTR100000. The requirements listed on this page, such as inspection frequency, who may inspect, stabilisation, corrective action and record retention, are cited to that permit rather than to EPA's. Anything we have not transcribed is left out instead of assumed to match the federal rule, and the scope note on this page says which sites the permit does not cover. Confirm the current permit and any site-size variant with Connecticut Department of Energy and Environmental Protection (CT DEEP).
Connecticut requires a credentialed preparer. Treat the generated document as a complete draft for that person to review, adopt and sign. It is not by itself a compliant filed plan.
The inspection frequency is set by the Connecticut construction general permit, which we have not read. Confirm it with Connecticut Department of Energy and Environmental Protection (CT DEEP).
Screening is free. Pro generates the site specific plan document and retains the inspection and corrective action log.