VWP CONSTRUCTION INSPECTION REPORT Inspection Date: August 22, 2016 VWP Permit No. 15-1268 SPGP RO Project Name: Berkmar Drive Extension Locality: Albemarle County Inspector: ERM Impacts: PFO PEM PSS POW Stream Channel WWD STAGE OF CONSTRUCTION Pre-construction Road Infrastructure Final Stabilization Complete Other Clearing/Grubbing Rough Grade Building Construction Final Grade IN COMPLIANCE? YES NO N/A Applicable Permit Condition Construction activities are not substantially disrupting the movement of aquatic life. Proper E&S controls are present, properly maintained, and functioning adequately. Stormwater measures are present and properly preventing stormwater runoff. Surface waters temporarily affected by construction activities have been restored to original elevations and appropriately stabilized. Utility line work in surface waters was performed to minimize disturbance to surface waters and the area was returned to original contours and appropriately stabilized. In-stream work is being performed in the dry with the appropriate use of cofferdams sheetpiling etc, to minimize disturbance of the stream bottom and increases in turbidity. Pipes and/or culverts for road crossings are countersunk a minimum of six inches to provide for the re-establishment of a natural stream bottom and low flow channel. Wetlands outside the construction areas are clearly marked to prevent additional unpermitted wetland impacts and no additional wetland impacts have occurred. Stream banks have been adequately stabilized. Time-of-year restrictions regarding impacts to surface waters are being adhered to. No additional impacts to surface waters have occurred.
GENERAL COMMENTS: DEQ staff (Eric Millard, Paul Demarsh, Duston Staton) performed a joint VWP/Stormwater Construction site inspection on August 22, 2016 at 10 AM. DEQ staff met with Ricky Woody (RK&K), Paul Rash (Lane/Corman), Mark Graham (VDOT), Dave Covington (VDOT), among others. The site inspection was in response to a notification received from Ricky Woody on August 11, 2016 that indicated downstream impacts associated with sediment were observed on July 30 and 31, 2016. Impact area #1: No impacts were permitted in this area for the span crossing of the South Fork Rivanna River. DEQ staff observed this area to ensure no unpermitted impacts to avoided waters had occurred. DEQ staff recommends that the piling constructed closest to the avoided wetlands be returned to grade following construction to prevent draining of avoided wetlands. GENERAL NON-COMPLIANCE ITEMS NOTED: Impact area #2: Impacts associated with a culvert crossing for road. The stream below the culvert installation was observed to have measurable sediment for at least 200 linear feet below crossing. Impact area #3: The upstream and downstream culvert is not countersunk a minimum of 6 inches. The permittee has indicated that the lack of countersinking is due to incomplete construction of the inlet and outlet protection. Once inlet and outlet protection has been completed and the low flow channel has been constructed, the culvert will be appropriately countersunk. Impact area #4: The upstream culvert is not countersunk a minimum of 6 inches. The permittee has indicated that the lack of countersinking is due to incomplete construction of the inlet protection. Once inlet protection has been completed and the low flow channel has been constructed, the culvert will be appropriately countersunk. The erosion and sediment controls adjacent to the upstream culvert section required maintenance. The downstream culvert and stream section below the culvert leading offsite was observed to be completely inundated. The permittee indicated that this is likely due to the downstream neighbor stream crossing has been clogged creating the inundation. The permittee has attempted to contact the downstream property owners with no response. Impact area #5: The downstream culvert is not countersunk a minimum of 6 inches. The permittee has indicated that the lack of countersinking is due to incomplete construction of the
inlet protection. Once inlet protection has been completed and the low flow channel has been constructed, the culvert will be appropriately countersunk. The upstream culvert was not observed. Measurable sediment was observed in the stream channel approximately 300 linear feet below the downstream culvert. DEQ staff observed measurable sediment in the stream to a point approximately adjacent to Flag 263. Impact area #6: The upstream and downstream culvert is not countersunk a minimum of 6 inches. The permittee has indicated that the lack of countersinking is due to incomplete construction of the inlet and outlet protection. Once inlet and outlet protection has been completed and the low flow channel has been constructed, the culvert will be appropriately countersunk. Measurable sediment was observed in the stream channel approximately 200 linear feet below the downstream culvert. DEQ staff observed measurable sediment in the stream to a point approximately adjacent to Flag FF33. Impact area #7: The downstream culverts are not countersunk a minimum of 6 inches for both the larger stream section (Identified as USM G) and the smaller stream section (identified as USM E). The permittee has indicated that the lack of countersinking is due to incomplete construction of the inlet protection. Once inlet protection has been completed and the low flow channel has been constructed, the culvert will be appropriately countersunk. The upstream culverts were not observed. The small stream section discharges at the wing wall of the downstream structure. The small stream section outlet is approximately 1 foot higher than the stream channel. The existing rip rap outlet protection was observed to be full of sediment. The permittee has indicated that they will attempt to seed this area and establish vegetation adjacent to the stream channel. Measurable sediment was observed in the stream channel approximately 30 linear feet below the downstream culvert. DEQ staff also observed sediment below the main stormwater BMP northeast of the downstream culvert. The silt fence at the bottom of the stormwater BMP slope appeared to have been overtopped by sediment. DEQ staff observed measurable sediment in the stream channel below that point for approximately 800 linear feet. DEQ staff observed measurable sediment in the stream to a point approximately adjacent to Flag 600 38. Impact area #8: Measurable sediment was observed in the stream channel approximately 700 linear feet below the downstream culvert. The permittee had already removed sediment in the stream channel prior to the site visit to a point approximately 200 linear feet below the downstream culvert. DEQ staff observed measurable sediment in the stream to a point
approximately adjacent to the DEQ wetland mitigation site for the Hollymead Town Center project. The entire length of stream channel where measureable sediment was observed was located in a DEQ stream mitigation area. The additional unpermitted impacts to surface waters were discovered on July 30-31 and DEQ was notified on August 11, 2016. Permit Part I.G.5. requires DEQ to be notified within 24 hours of discovering impacts to surface waters that are not authorized by the permit. The notification shall include photographs, estimated acreage and/or linear footage of impacts, and a description of the impacts. VWP INPSECTOR:
IMPACTS MAP
PHOTOGRAPHS Photo 2: Impact area 1-North side of SF Rivanna at E&SC measures; Orientation: SW Photo 1: Impact area 1 looking from south side of SF Rivanna River; Orientation: NE Photo 4: Impact area 1-looking at pilings next to avoided wetlands; Orientation: N Photo 3: Impact area 1-Looking at avoided wetlands; Orientation: E
Photo 6: Impact area 1-looking at avoided wetland area; Orientation: N Photo 5: Impact area 1-looking at avoided wetland area; Orientation: E Photo 7: Impact area 2-looking at outlet from SWM BMP; Orientation: SW Photo 8: Impact area 2-looking at culvert; Orientation: SW
Photo 9: Impact area 2-stream channel below SWM BMP outlet (~300 lf of stream channel impacts observed); Orientation: SW Photo 10: Impact area 2-looking downstream. Measureable sediment observed; Orientation: W Photo 12: Impact area 3-looking upstream of culvert inlet; Orientation: NW Photo 11: Impact area 3-looking at culvert inlet; Orientation: SE
Photo 13: Impact area 3-looking at culvert outlet; Orientation: NW Photo 14: Impact area 3-looking downstream from culvert outlet; Orientation: SE Photo 15: Impact area 4-looking at culvert inlet; Orientation: E Photo 16: Impact area 4-looking upstream of culvert inlet; Orientation: NE
Photo 17: Impact area 4-looking at the downstream culvert outlet area; Orientation: S Photo 18: Impact area 4-looking at culvert outlet; Orientation: SW Photo 19: Impact area 4-backwater condition created by downstream clogged culvert crossing; Orientation: SE Photo 20: Impact area 5-looking at culvert outlet; Orientation: NW
Photo 21: Impact area 5-measureable sediment observed in downstream channel (~300 lf of stream channel impacts observed); Orientation: SE Photo 22: Impact area 5- measureable sediment observed in downstream channel; Orientation: SE Photo 23: Impact area 5- measureable sediment observed in downstream channel; Orientation: SE Photo 24: Impact area 5-measureable sediment observed in downstream channel; Orientation: SE
Photo 25: Impact area 6-looking upstream of culvert inlet; Orientation: NW Photo 26: Impact area 6-looking at culvert inlet; Orientation: E Photo 27: Impact area 6-looking at culvert outlet; Orientation: NE Photo 28: Impact area 6-measureable sediment observed in downstream channel(~200 lf of stream channel impacts observed); Orientation: SE
Photo 29: Impact area 6-measureable sediment observed in downstream channel; Orientation: SE Photo 30: Impact area 7-looking at larger stream culvert outlet (USM G); Orientation: W Photo 31: Impact area 7-looking at smaller stream culvert outlet (USM E); Orientation: N Photo 32: Impact area 7-looking downstream just below culvert outlet pipes (~30 lf of stream channel impacts observed); Orientation: NE
Photo 33: Impact area 7-looking below SWM BMP; Orientation: NE Photo 34: Impact area 7-looking below SWM BMP on NE side of silt fence leading toward channel; Orientation: NE Photo 35: Impact area 7-measurable sediment observed in stream channel below SWM BMP (~800 lf of stream channel impacts observed); Orientation: NE Photo 36: Impact area 7-measurable sediment observed in stream channel below SWM BMP; Orientation: NE
Photo 37: Impact area 7-measurable sediment observed in stream channel below SWM BMP; Orientation: NE Photo 38: Impact area 7-measurable sediment observed in stream channel below SWM BMP; Orientation: NE Photo 39: Impact area 7-measurable sediment observed in stream channel below SWM BMP; Orientation: NE Photo 40: Impact area 7-measurable sediment observed in stream channel below SWM BMP; Orientation: NE
Photo 41: Impact area 7-measurable sediment observed in stream channel below SWM BMP; Orientation: NE Photo 42: Impact area 7-measurable sediment observed in stream channel below SWM BMP; Orientation: NE Photo 43: Impact area 7-measurable sediment observed in stream channel below SWM BMP; Orientation: NE Photo 44: Impact area 8-looking at culvert outlet; Orientation: E
Photo 45: Impact area 8-looking at culvert outlet; Orientation: NE Photo 46: Impact area 8-looking downstream from culvert outlet (~200 lf of sediment in stream channel removed prior to inspection); Orientation: S Photo 47: Impact area 8-looking downstream, measureable sediment observed (~500 lf of stream channel impacts observed); Orientation: S Photo 48: Impact area 8-walking downstream measureable sediment observed; Orientation: W
Photo 49: Impact area 8-walking downstream measureable sediment observed; Orientation: W Photo 50: Impact area 8-looking from top of crossing down at culvert inlet; Orientation: NW