HomeMy WebLinkAbout20201223_Demolition Plan_24x36NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) NOTES
1. In the case of emergency, call JEFF BETHEL at Cell Phone# (949) 294-5333.
2.Sediment from areas disturbed by construction shall be retained on site using structural
controls to the maximum extent practicable.
3.Stockpiles of soil shall be properly contained to minimize sediment transport from the site to
streets, drainage facilities or adjacent properties via runoff, vehicle tacking, or wind.
4.Appropriate BMP’ for construction-related materials, wastes, spills shall be implemented to
minimize transport from the site to streets, drainage facilities, or adjoining properties by wind or
runoff.
5.Runoff from equipment and vehicle washing shall be contained at construction sites unless
treated to reduce or remove sediment and other pollutants.
6.All construction contractor and subcontractor personnel are to be made aware or the required
best management practices and good housekeeping measures for the project site and any
associated construction staging areas.
7.At the end of each day of construction activity all construction debris and waste materials shall
be collected and properly disposed in trash or recycle bins.
8.Construction sites shall be maintained in such a condition that an anticipated storm does not
carry wastes or pollutants off the site. Discharges of material other than stormwater only when
necessary for performance and completion of construction practices and where they do not:
cause or contribute to a violation of any water quality standard; cause or threaten to cause
pollution, contamination, or nuisance; or contain a hazardous substance in a quantity reportable
under Federal Regulations 40 CFR Parts 117 and 302.
9.Potential pollutants include but are not limited to: solid or liquid chemical spills; wastes from
paints, stains, sealants, glues, limes, pesticides, herbicides, wood preservatives and solvents;
asbestos fibers, paint flakes or stucco fragments; fuels, oils, lubricants, and hydraulic, radiator or
battery fluids; fertilizers, vehicle/equipment wash water and concrete wash water; concrete,
detergent or floatable wastes; wastes from any engine/equipment steam cleaning or chemical
degreasing and superchlorinated potable water line flushing.
During construction, permittee shall dispose of such materials in a specified and controlled
temporary area onsite, physically separated from potential stormwater runoff, with ultimate
disposal in accordance with local, state and federal requirements.
10. Dewatering of contaminated groundwater, or discharging contaminated soils via surface
erosion is prohibited. Dewatering of non-contaminated groundwater requires a National Pollutant
Discharge Elimination System Permit from the respective State Regional Water Quality Board.
11.Graded areas on the permitted area perimeter must drain away from the face of slopes at the
conclusion of each working day. Drainage is to be directed toward desiliting facilities.
12. The permittee and contractor shall be responsible and shall take necessary precautions to
prevent public trespass onto areas where impounded water creates a hazardous condition.
13.The permittee and contractor shall inspect the erosion control work and insure that the work is
in accordance with the approved plans.
14.The permittee shall notify all general contractors, subcontractors, material suppliers, lessees,
and property owners; that dumping of chemicals into the storm drain system or the watershed is
prohibited.
15.Equipment and workers for emergency work shall be made available at all times during the
rainy season. Necessary materials shall be available on site and stockpiled at convenient
locations to facilitate rapid construction of temporary devices when rain is imminent.
16.All removable erosion protective devices shall be in place at the end of each working day
when the 5-Day Rain Probability Forecast exceeds 40%.
17.Sediments from areas disturbed by construction shall be retained on site using an effective
combination of erosion and sediment controls to the maximum extent practicable, and stockpiles
of soil shall be properly contained to minimize sediment transport from the site to streets,
drainage facilities of adjacent properties via runoff, vehicle tracking, or wind.
18.Appropriate BMP’s for construction-related materials, wastes, spills or residues shall be
implemented and retained on site to minimize transport from the site to streets, drainage facilities,
or adjoining property by wind or runoff.DEMOLITION PLAN1
OF
SHEET
SHEETS2
DEMOLISH EXISTING 4 UNIT
RESIDENTIAL HOUSING COMPLEX
WITH ATTACHED 6 CAR GARAGE
DEMO ALL ON-SITE IMPROVEMENTS
EXISTING PROPERTY LINE WALLS TO
REMAIN.
DRY SEASON REQUIREMENTS (MAY-SEPTEMBER)
1. WIND EROSION BMPS (DUST CONTROL) SHALL BE IMPLEMENTED
2. SEDIMENT CONTROL BMPS SHALL BE INSTALLED AND MAINTAINED AT ALL OPERATIONAL STORM DRAIN
INLETS.
3. BMPS TO CONTROL OFF-SITE SEDIMENT TRACKS SHALL BE IMPLEMENTED AND MAINTAINED
4.APPROPRIATE WASTE MANAGEMENT AND MATERIALS POLLUTION CONTROL BMPS SHALL BE IMPLEMENTED
TO PREVENT THE CONTAMINATION OF STORM WATER BY WASTES AND CONSTRUCTION MATERIALS
5.APPROPRIATE NON-STORM WATER BMPS SHALL BE IMPLEMENTED TO PREVENT THE CONTAMINATION OF
STORM WATER FROM CONSTRUCTION ACTIVITIES.
6.THERE SHALL BE A "WEATHER TRIGGERED" ACTION PLAN AND THE ABILITY TO DEPLOY STANDBY SEDIMENT
CONTROL BMPS AS NEEDED TO COMPLETELY PROTECT THE EXPOSED PORTIONS OF THE SITE WITHIN 48
HOURS OF A PREDICTED STORM EVENT (A PREDICTED STORM IS DEFINED AS A FORECASTED , 50% CHANCE OF
RAIN.
7. SUFFICIENT MATERIALS NEEDED TO INSTALL STANDBY SEDIMENT CONTROL BMPS (AT THE SITE PERIMETER.
SITE SLOPES AND OPERATIONAL INLETS WITHIN THE SITE) NECESSARY TO PREVENT SEDIMENT DISCHARGES
FROM EXPOSED PORTIONS OF THE SITE SHALL BE STORED ON SITE. AREAS THAT HAVE ALREADY BEEN
PROTECTED FROM EROSION USING PHYSICAL STABILIZATION OR ESTABLISHED VEGETATION STABILIZATION
BMPS AS DESCRIBED IN ITEM H ARE NOT CONSIDERED TO BE EXPOSED FOR PURPOSES OF THIS
REQUIREMENT.
8. DEPLOYMENT OF PERMANENT EROSION CONTROL BMPS (PHYSICAL OR VEGETATION SHOULD COMMENCE AS
SOON AS PRACTICAL ON SLOPES THAT ARE COMPLETED FOR ANY PORTION OF THE SITE). STANDBY BMP
MATERIALS SHOULD NOT BE RELIED UPON TO PREVENT EROSION OF SLOPES THAT HAVE BEEN COMPLETED.
WET SEASON REQUIREMENTS (OCTOBER-APRIL)
1. WHERE APPROPRIATE SEDIMENT CONTROL BMPS SHALL BE IMPLEMENTED AT THE SITE PERIMETER, AT ALL
OPERATIONAL STORM DRAIN INLETS, AND AT ALL NON-ACTIVE SLOPES, TO PROVIDE SUFFICIENT PROTECTION
FOR STORMS LIKELY TO OCCUR DURING THE RAINY SEASON.
2.ADEQUATE PHYSICAL OR VEGETATION EROSION CONTROL BMPS (TEMPORARY OR PERMANENT) SHALL BE
INSTALLED AND ESTABLISHED FOR ALL COMPLETED SLOPES PRIOR TO THE START OF THE RAINY SEASON.
THESE BMPS MUST BE MAINTAINED THROUGHOUT THE RAINY SEASON. IF A SELECTED BMPS FAILS, IT MUST BE
REPAIRED AND IMPROVED, OR REPLACED WITH AN ACCEPTABLE ALTERNATE AS SOON AS IT IS SAFE TO DO SO.
THE FAILURE OF A BMP MAY INDICATE THAT THE BMP, AS INSTALLED, WAS NOT ADEQUATE FOR THE
CIRCUMSTANCES IN SHICH IT WAS USED. REPAIRS OR REPLACEMENTS MUST RESULT IN A MORE ROBUST BMP,
OR ADDITIONAL BMPS SHOULD BE INSTALLED TO PROVIDE ADEQUATE PROTECTION
3.THE AMOUNT OF EXPOSED SOIL ALLOWED AT ONE TIME SHALL NOT EXCEED THAT WHICH CAN BE
ADEQUATELY PROTECTED BY DEPLOYING STANDBY EROSION CONTROL AND SEDIMENT CONTROL BMPS PRIOR
TO A PREDICTED RAIN STORM.
4.A DISTURBED AREA THAT IS NOT COMPLETED OR THAT IS NOT BEING ACTIVELY GRADED (NON-ACTIVE AREA)
SHALL BE FULLY PROTECTED FROM EROSION WITH TEMPORARY OR PERMANENT BMPS (EROSION AND
SEDIMENT CONTROL). THE ABILITY TO DEPLOY STANDBY BMP MATERIALS IS NOT SUFFICIENT FOR THESE
AREAS. EROSION AND SEDIMENT CONTROL BMPS MUST ACTUALLY BE DEPLOYED. THIS INCLUDES ALL BUILDING
PADS, UNFINISHED ROADS, AND SLOPES.
5. SUFFICIENT MATERIALS NEEDED TO INSTALL STANDBY EROSION AND SEDIMENT BMPS NECESSARY TO
COMPLETELY PROTECT THE EXPOSED PORTIONS OF THE SITE FROM EROSION AND TO PREVENT SEDIMENT
DISCHARGES SHALL BE STORED ON-SITE. AREAS THAT HAVE ALREADY BEEN PROTECTED FROM EROSION
USING PERMANENT PHYSICAL STABILIZATION OR ESTABLISHED VEGETATION STABILIZATION BMPS ARE NOT
CONSIDERED TO BE EXPOSED FOR PURPOSES OF THIS REQUIREMENT.
ADDRESS LIVING AREA
361 1,550 SF
363(A) 525 SF
363 (B) 650 SF
365 1,900 SF
4,625 SF
C RAIG S. H AMPTON
I N C O R P O R A T E D
DESIGNING QUALITY CUSTOM HOMES SINCE 1979
5500 E. Q UARTERSAWN S TREET ~ B OISE, I DAHO 83716
(949)209-8883
craig@craigshampton.com
www.craigshampton.com
EROSION CONTROL- SANDBAGS 2 LAYERS HIGH
6 FT. HIGH TEMPORARY CONSTRUCTION FENCE
LEGEND
DEMO PLAN NOTES
ALL DEBRIS SHALL BE WET AT TIME OF HANDLING TO PREVENT DUST.
SEWER LINE SHALL BE CAPPED
ALL BASEMENT FILLS SHALL BE CLEAN AND UNIFORM
STREETS AND SIDEWALKS ARE TO REMAIN CLEAN AND CLEAR
EROSION CONTROL DEVICES SHALL BE AVAILABLE ON SITE BETWEEN
OCTOBER 15 AND MAY 15.
BETWEEN OCTOBER 15 AND MAY 15, EROSION CONTROL MEASURES
SHALL BE IN PLACE AT THE END OF EACH WORKING DAY WHENEVER
THE FIVE DAY PROBABILITY OF RAIN EXCEEDS 30 PERCENT. DURING
THE REMAINDER OF THE YEAR, THEY SHALL BE IN PLACE AT THE END
OF THE WORKING DAY, WHENEVER THE DAILY RAINFALL PROBABILITY
EXCEEDS 50 PERCENT.
TEMPORARY DESILTING BASINS, WHEN REQUIRED, SHALL BE INSTALLED
AND MAINTAINED FOR THE DURATION OF THE PROJECT.
PEDESTRIAN CANOPY PROTECTION REQUIRED IF DEMOLITION WITHIN
10 FEET OF PUBLIC SIDEWALK.
3-06-19
3/7/19PA2019-085 CDP
DEMOLITION PLAN2
OF
SHEET
SHEETS2
PA2019-085 CDP