9:30 site walk through

All temporary BMPs onsite have been removed. Site is stabilized/landscaped, trash has been picked up around site and along Walling Creek. Onsite stormwater retention installed, consisting of permeable pavers and sand filter grassy swales.

Adjacent lot that was used for staging and dewatering system will remain an active ESC site , see ESC16-01650. Sediment filter bags along Barber Valley Drive will be inspected under this permit.

ESC permit conditions satisfied, permit finaled.

Work nearly completed, just touchup work outside. Site is landscaped, BMPs removed. Sweeper on site, no ESC issues.

site walk through to discuss removal of temp. BMPs where landscaping has occured

Approved to remove wattle perimeter from where landscaping has been completed.

site is now paved. WIP on the interior and landscaping. Concrete washout ecopan on site for ongoing cement work.

No trackout from site. Request to continue to pick up trash around perimeter daily. Some loose trash was observed and RP stated crews will do a round today.

Plan is to get C of O by January, finish the rest by February.

Trash and materials contained within site. Ecopan washouts provided. No discharges around perimeter. Some minor trackout is still occuring. RP to sweep each day, site should be paved early November.

Correction request to continue monitoring trackout and install inlet protection on first storm drain to the east of the entrance.

entrance needs refeshing....

Trackout broom swept. RP states that street sweeper coming tomorrow AM. More rock to be added next week.

Follow up scheduled.

WIP on frame and installing curbing for roads & parking with site. Construction entrances installed, permit sign posted, trash around perimeter is picked up, concrete washout bins onsite, and water truck available for dust control.

Stockpile of topsoil staged on west side of site has been properly tacified due to planned period of inactivity. Site has been very well managed regard ESC standards.

9:00 AM

ESC permit sign posted. WIP on vertical construction. No trackout or discharges observed, trash contained. No dewatering occuring at this time, the site will dewater one more with Brown Excavation to tap into a line on the west side of site.

Currently no dewatering. Two hookups renmain, anticipated to start dewatering again on 6-4. No dust or trackout from site.

No trackout, fugitive dust at site. Permit signs and SWPPP info onsite. Concrete washout pans located at east exit.

New dewatering plan is now implemented. RP submitted updated copy. Cleaner water from the deeper well point is being pumped to the 4 tanks. A backup pond in case water turns turbid is has been enlargened. Water leaving system is visibly clear. No plume observed in Walling Creek.

A new settling and discharge setup has been installed to the adjacent lot. 4 holding chambers seperated by geotextile covered earthen berms will settle water and allow infiltration. If overflow of basins occurs, water flows through a lined channel to the vegeated banks of Walling Creek where water will sheet flow into the creek. This system started receiving the "maintenance" water from the active trench this morning and has not yet overflowed from the first basin. RP is reporting infiltration and the wind and sum is helping with evaporation.

No corrections needed, discharge is currently clean and site in compliance. Will check levels later this week.

Water is at 31 NTU and flowing clear. Issues with frack tanks look resolved for now.

Dewatering system inspection. RP's turbidity monitoring log did not show any WQS exceedence.

At time of inspection, turbid water was observed at end of pipe.

Upstream turbidity sample for background was taken at pedestrian bridge was 4.4 NTU at 10:45 AM. At 10:50 AM a sample downstream from discharge area on north side of Walling Creek had a reading of 17 NTU. Then at 10:55 a sample of south side of creek within the visible plume was 93 NTU.

RP halted dewatering operations readjust settling tanks and check on pump operations to get the discharge back into compliance.

Follow up inspection scheduled for 4/13 AM

check on dewatering

RP JT reviewed dewatering plans. Will hook up a series of weir tanks that will then discharge to a lined channel, flow towards green belt and sheet flow to Walling Creek.

Paper plan to be submitted Monday. Dewatering to begin Monday or Tuesday.

Construction entrances are lined and are preventing trackout at both locations. Perimeter wattles are installed as well as chain link fence to control area of disturbance.

No loose trash within site, some trash around perimeter, most likely from adjacent condo projects. Request to do permiter trash pick up once per week.

Pollution prevention BMPs are implemented at site including:
- signage prohibiting track out
- covered material storage container
- secondary containment area for temporary storage of oils and other chemicals needed during the day
- spill kit with signage
- large dumpster emptied weekly to prevent overfilling
- SWPPP and ESC permit sign posted at entrance


No dewatering has occured yet, RP states that dewatering plan will be submitted prior to the sewer work that is required on the west side of site.