HomeMy WebLinkAboutC1.50_SWPPP SWPPP Project Overview Contact Information: SWPPP Legend: SWPPP General Notes:
OWNER: CHALLENGER DEVELOPMENT, INC. �i� erWftlq.� THE
LIMITS OF DISTURBANCE 1. ALL STORM WATER WILL BE CONTAINED ON SITE.
PRIMARY CONTACT: LAND
PH. FIBER ROLL PER THE STATE OF IDAHO CATALOG OF 2. ALL BMP'S SHALL BE INSPECTED AT A MINIMUM ONCE EVERY 14 DAYS AND WITHIN 24 HOURS OF A .
FW FW STORM WATER BEST MANAGEMENT PRACTICES BMP STORM EVENT PRODUCING 0.25 INCHES OR GREATER-OR-ONCE EVERY SEVEN DAYS. GROUP
INSTALL TYPE I INLET PROTECTION PRIOR GENERAL CONTRACTOR/OPERATOR: #35. SEE THE FOLLOWING SHEET FOR DETAILS. INSPECTION FREQUENCY MAY BE REDUCED TO ONCE EVERY MONTH IF:
TO EARTH DISTURBING ACTIVITIES AND PRIMARY CONTACT: A. THE ENTIRE SITE IS TEMPORARILY STABILIZED,OR
REMOVE UPON FINAL STABILIZATION. PH. B. RUNOFF IS UNLIKELY DUE TO WINTER CONDITIONS,OR
PROPOSED GROUND CONTOUR INTERVAL
2661 (ONE-FOOT ) C. CONSTRUCTION IS OCCURRING DURING SEASONAL ARID PERIODS(MAY THROUGH SEPTEMBER)
�N WITH DIRECTIONAL SLOPE ARROWS IN ARID AREAS AND SEMI-ARID AREAS.
ONSITE SWPPP COORDINATOR:
COMPANY: 3. DEWATERING IS EXPECTED FOR THIS SITE. ONSITE ESC CONTRACTOR IS RESPONSIBLE FOR ALL
SWPPP Posting Requirements: PH. 2661 APPROXIMATE EXISTING GROUND CONTOUR NON-STORMWATER MANAGEMENT.
-- (FIVE-FOOT INTERVAL)WITH DIRECTIONAL
4. STREET SWEEPING WILL BE IMPLEMENTED ON AN AS-NEEDED BASIS AS DETERMINED BY THE ESC
1. THE CONTRACTOR AND OWNER/DEVELOPER ARE RESPONSIBLE FOR APPLYING FOR OBTAINING
PLAN PREPARER: GARY SCHUMACHER SLOPE ARROWS COORDINATOR.
THE EPA NOTICE OF INTENT(NOI). ❑ 5. PROVIDE WASTE CONTAINERS FOR BUILDING MATERIALS IN WASTE STORAGE CONTAINMENT AREA.
INSTALL TYPE I INLET PROTECTION PRIOR PORTABLE RESTROOM WASTE DISPOSAL DUMPSTERS MUST HAVE LIDS,OR PROVIDE COVER OR A SIMILARLY EFFECTIVE MEANS
2. A COMPLETE COPY OF THE SWPPP(INCLUDING A COPY OF THE CONSTRUCTION GENERAL TO MINIMIZE THE DISCHARGE OF POLLUTANTS.KEEP WASTE CONTAINER LIDS CLOSED WHEN NOT IN USE
PERMIT AND COMPLETED INSPECTION FORMS),NOI,AND ACKNOWLEDGEMENT LETTER FROM TO EARTH DISTURBING ACTIVITIES AND AND AT THE END OF THE BUSINESS DAY.DISPOSE AT A FREQUENCY ACCORDING TO CONTAINER SIZE.
EPA MUST BE RETAINED AT THE CONSTRUCTION SITE(OR OTHER LOCATION EASILY REMOVE UPON FINAL STABILIZATION.
ACCESSIBLE DURING NORMAL BUSINESS HOURS)AND MADE AVAILABLE FOR REVIEW BY EPA, RECTANGULAR DROP INLET PROTECTION TYPE I PER 6. WORKMAN SHALL PARK ON THE AREA DESIGNATED AS WORKMAN PARKING OR AN OFF-SITE LOCATION
A STATE,OR OTHER LOCAL APPROVING AGENCY. El BMP#13, SEE SHEET C1.55 FOR DETAILS IF PRE-APPROVED.
3. A SIGN OR OTHER NOTICE MUST BE POSTED IN A CONSPICUOUS LOCATION NEAR THE 7. ALL DROP INLETS,CATCH BASINS,AND CURB INLETS NOTED ON PLAN SHALL HAVE INLET PROTECTION
CONSTRUCTION ENTRANCE. THE SIGN OR OTHER NOTICE MUST CONTAIN THE FOLLOWING CONCRETE WASHOUT. SEE THE FOLLOWING SHEET FOR PROVIDED. SEE THE SWPPP PLAN DETAILS ON SHEET C1.55 AND MANUFACTURES GUIDELINES FOR
INFORMATION: Southrid e W DETAILS. INSTALLATION INSTRUCTIONS.
g 8. LOCATE ALL PORTABLE RESTROOMS AS FAR FROM PUBLIC AND PRIVATE STORM DRAIN SYSTEMS AS
• AT A MINIMUM,THE NOTICE MUST INCLUDE THE NPDES PERMIT TRACKING NUMBER POSSIBLE.ANCHOR TO PREVENT VANDALISM.
AND A CONTACT NAME AND PHONE NUMBER FOR OBTAINING ADDITIONAL PROJECT Apartments of-A-Part STAGING AREA AS NOTED. STABILIZE AND PROVIDE
PERIMETER CONTROLS PER THE STATE OF IDAHO 11. SLURRY AND CUTTINGS FROM SAWCUTTING OF CONCRETE OR ASPHALT SHALL BE VACUUMED DURING
AND THE PHONEE NUMBER OF THE STORMWATER POLLUTION HOTLINE(395-8888)
INFORMATION WELL AS THE ADDRESS OF THE SITE,THE PERMIT HOLDER'S NAME CATALOG OF STORM WATER BEST MANAGEMENT CUTTING AND SURFACING OPERATIONS.SLURRY AND CUTTINGS SHALL NOT REMAIN ON PERMANENT
��
MUST BE DISPLAYED THROUGHOUT CONSTRUCTION PRACTICES CONCRETE OR ASPHALT PAVEMENT OVERNIGHT.SLURRY AND CUTTINGS SHALL NOT DRAIN TO ANY
• THE UNIFORM RESOURCE LOCATOR(URL)FOR THE SWPPP(IF AVAILABLE),OR THE NATURAL OR CONSTRUCTED DRAINAGE CONVEYANCE.COLLECTED SLURRY AND CUTTINGS SHALL BE
FOLLOWING STATEMENT:"IF YOU WOULD LIKE TO OBTAIN A COPY OF THE DISPOSED OF IN A MANNER THAT DOES NOT VIOLATE GROUNDWATER OR SURFACE WATER QUALITY
1-1 SITE CONSTRUCTION SIGN. STANDARDS.
STORMWATER POLLUTION PREVENTION PLAN (SWPPP)FOR THIS SITE,CONTACT THE 's
EPA REGIONAL OFFICE AT EPA REGION 10 STORMWATER PROGRAM MISHA VAKOC 12. SEE LANDSCAPE AND MATERIALS PLANS FOR INFORMATION CONCERNING FINAL SOIL STABILIZATION
(VAKOC.MIS HA@EPA.GOV) (206)553-6650" MEASURES.
• AND THE FOLLOWING STATEMENT"IF YOU OBSERVE INDICATORS OF STORMWATER ' - W STABILIZED ENTRANCE PER THE STATE OF IDAHO
CATALOG OF STORM WATER BEST MANAGEMENT
POLLUTANTS IN THE DISCHARGE OR IN THE RECEIVING WATERBODY,CONTACT THE -� -' � '='� �� � 13. ALL EXCESS MATERIALS SHALL BE HAULED OFF SITE AND DISPOSED OF AT AN APPROVED LOCATION.
EPA THROUGH THE FOLLOWING WEBSITE: -I =`_`_" PRACTICES BMP#40.THIS SHALL BE MAINTAINED EXCESS MATERIAL MAY BE TEMPORARILY STORED ON SITE(IF APPROVED BY THE OWNER)AT A
EPA THROUGH THE FOVLENFORCEMENT/REPORT ENVIRONMENTAL Not-A-Part THROUGHOUT CONSTRUCTION UNTIL BASE MATERIAL STABILIZED PER BMP#0N. IF MATERIAL IS STOCKPILED FOR MORE THAN 14 DAYS STOCKPILE IS TO BE
HTT44.
-VIOLATIONS." IS INSTALLED. PROVIDE SWEEPING DAILY OR AS
• THE NOTICE MUST BE LOCATED SO THAT IT IS VISIBLE FROM THE PUBLIC ROAD THAT \ �. NEEDED TO REMOVE ANY TRACKING OF MUD AND/OR 14. ALL WORK SHALL BE DONE IN ACCORDANCE WITH THE LATEST EDITION OF THE ISPWC.
IS NEAREST TO THE ACTIVE PART OF THE CONSTRUCTION SITE. psi Iql DIRT ONTO EXISTING ASPHALT. SEE THE FOLLOWING
• THE NOTICE MUST USE A FONT LARGE ENOUGH TO BE READILY VIEWED FROM A IJ SHEET FOR DETAILS. 15. ALL GRADING,UTILITY,AND ROADWAY CONSTRUCTION SHALL BE LIMITED TO THE HOURS BETWEEN 7:00
PUBLIC RIGHT-OF-WAY. " ' 'bad A.M.AND 9:00 P.M.MONDAY THROUGH FRIDAY AND 8:00 A.M.TO 9:00 P.M.SATURDAY AND SUNDAY, UJ\ h n UNLESS OTHERWISE APPROVED BY THE CONSTRUCTION MANAGER.
4. THE SWPPP MUST BE SIGNED AND CERTIFIED IN ACCORDANCE WITH APPENDIX I,SECTION 1.11 �� - "a Stockpile Management BMP 44:
\ a p g 16. ANY MODIFICATIONS TO THIS PLAN REQUIRE APPROVAL OF THE DESIGNER OR THE ONSITE RESPONSIBLE
OF THE CONSTRUCTION GENERAL PERMIT. y
� � a� PERSON.
a FROM:IDEA STORM WATER BEST MANAGEMENT PRACTICES CATALOG SEPTEMBER 2005 a
5. THE OPERATOR AND OWNER/DEVELOPER ARE RESPONSIBLE FOR OBTAINING THE EPA FORMS
FOR N.O.T. NOTICE OF TERMINATION). CV `� /a \ ,a \\ DESCRIPTION: 17. TOTAL DISTURBED AREA IS APPROXIMATELY 74.79±ACRES..
0
( ) � � w� .�/ ���� � � � STOCKPILE MANAGEMENT PROCEDURES AND PRACTICES ARE DESIGNED TO REDUCE OR
\ I N O�hg S o 18. UPON CONTRACT APPROVAL BY THE CONTRACTOR,IT IS RECOGNIZED THAT THE CONTRACTOR HAS
j r, ELIMINATE AIR AND STORMWATER POLLUTION FROM STOCKPILES OF SOIL,PAVING REVIEWED THE PLAN DRAWINGS AND THE CONTRACTOR AGREES TO ABIDE BY THE REQUIREMENTS AND
MATERIALS SUCH AS PORTLAND CEMENT CONCRETE(PCC)RUBBLE,ASPHALT CONCRETE CONDITIONS CONTAINED HEREIN.
(AC),ASPHALT CONCRETE RUBBLE,AGGREGATE BASE,AGGREGATE SUB BASE OR
> ti \\ PRE MIXED AGGREGATE,ASPHALT MINDER(SO CALLED"COLD MIX"ASPHALT),AND 19. BOISE CITY PLANNING AND DEVELOPMENT SERVICES REQUIRES EROSION CONTROL PERMITEES TO
INSTALL TYPE I INLET PROTECTION PRIOR SCHEDULE AN EROSION AND SEDIMENT CONTROL SITE PREPARATION INSPECTION.THE INSPECTION
TO EARTH DISTURBING ACTIVITIES AND q PRESSURE-TREATED WOOD. MUST BE SCHEDULED PRIOR TO GRADING OR OTHER LAND DISTURBING ACTIVITIES BUT AFTER THE
REMOVE UPON FINAL STABILIZATION. EXISTING PHASE 1 v ` ` APPLICATIONS: REQUIRED STRUCTURAL BEST MANAGEMENT PRACTICES ARE INSTALLED.THE REQUIRED BMP'S MUST
�) }°�� COMPLETE AND PASS THE EROSION AND SEDIMENT CONTROL SITE PREPARATION INSPECTION PRIOR TO O
76-LOTS IMPLEMENT IN ALL PROJECTS THAT STOCKPILE SOIL AND OTHER MATERIALS. COMMENCING LAND DISTURBING ACTIVITIES.IF THE INSPECTION FAILS,YOU MUST COMPLETE ALL = -
Not-A-Part LIMITATIONS: NECESSARY CORRECTIONS AND RESCHEDULE THE SITE PREPARATION INSPECTION.THE SITE MUST
DRAINAGE AREA-N/A MAXIMUM SLOPE-N/A PASS THE SITE PREPARATION INSPECTION PRIOR TO BEGINNING WORK.FAILURE TO SCHEDULE AND O
MINIMUM BEDROCK DEPTH-N/A MINIMUM WATER TABLE N/A PASS THE SITE PREPARATION INSPECTION WILL DELAY YOUR WORK.
\.fir PHASE 2 �J. _ -� NRCS SOIL TYPE N/A FREEZE/THAW GOOD INSPECTIONS MAY BE REQUESTED THE SAME DAY AND UP TO THREE DAYS IN ADVANCE, y
DRAINAGE/FLOOD CONTROL-NO EXCLUDING HOLIDAYS AND WEEKENDS. INSPECTIONS REQUESTED BETWEEN 7:30 AM AND
�Q ° rf J ' TARGETED POLLUTANTS: 11:30 AM WILL BE COMPLETED BY 5:00 PM OF THE SAME DAY. INSPECTIONS SCHEDULED
SITE CONSTRUCTION SIGN. Oa Q' 62-LOTS O -- AFTER 11:30 AM WILL BE PERFORMED THE FOLLOWING DAY BY NOON.YOU CAN SCHEDULE UJ
SEDIMENT
•�e THE INSPECTION THREE DIFFERENT WAYS:
SEE SHEET C1 .51 4 / •3 -r • SCHEDULE USING THE MOBILE APP ON YOUR SMARTPHONE AT HTTP://PDSMOBILE.NET. ca
0 CONSTRUCTION GUIDELINES: • SCHEDULE ONLINE AT WWW.CITYOFBOISE.ORG/PDS/PDSONLINE.
C� -� � GENERAL • CALL(208)384 3802 TO SCHEDULE.
FOR DETAILS - -
� i � LOCATE STOCKPILES A MINIMUM OF 50 FT AWAY FROM CONCENTRATED FLOWS OF Soil I Stabilization:
CM
�� 1 C �J \ STORMWATER,DRAINAGE COURSES,AND INLETS. oI
PROTECT ALL STOCKPILES FROM STORMWATER RUN-ON USING A TEMPORARY
o �, �r PERIMETER SEDIMENT BARRIER SUCH AS BERMS, DIKES, FIBER ROLLS,SILT FENCES, 1. IF SEDIMENT ESCAPES THE CONSTRUCTION SITE, OFF-SITE ACCUMULATIONS OF SEDIMENT MUST BE
a l �� �� REMOVED AT A FREQUENCY SUFFICIENT TO MINIMIZE OFF-SITE IMPACTS.
�� a �Qy � �/' ��• �� �� SANDBAGS,OR GRAVEL BAGS.IMPLEMENT WIND EROSION CONTROL PRACTICES AS O
APPROPRIATE ON ALL STOCKPILED MATERIAL. Q0
2. EXCEPT AS PROVIDED BELOW,STABILIZATION MEASURES MUST BE INITIATED AS SOON AS PRACTICABLE
PLACE BAGGED MATERIALS ON PALLETS AND UNDER COVER.
/ . _ . •� �4 - �j IN PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITIES HAVE TEMPORARILY OR PERMANENTLY c
CONSTRUCTION ACTIVITY IN THAT PORTION
RIW °
CEASED, BUT IN NO CASE MORE THAT 14 DAYS AFTER THE � Q
R/W � � �� OF THE SITE HAS TEMPORARILY OR PERMANENTLY CEASED. � 0
a
�°�°�° � I •��� J �� o p L i �� S � 2.1. WHERE STABILIZATION BY THE 14th DAY IS PRECLUDED BY SNOW COVER OR FROZEN GROUND ; w
"� �'�► o o ti ��� L ' CONDITIONS,STABILIZATION MEASURES MUST BE INITIATED AS SOON AS PRACTICABLE. CA C
�� Z o r % rr, o ° o a�of 2.2. WHERE CONSTRUCTION ACTIVITY ON A PORTION OF THE SITE IS TEMPORARILY CEASED, AND
R/W ® °° °° '° �� ( EARTH DISTURBING ACTIVITIES WILL BE RESUMED WITHIN 14 DAYS, TEMPORARY STABILIZATION
Revisions
o 6 MEASURES DO NOT HAVE TO INITIATED ON THAT PORTION OF THE SITE.
��� 1. AGENCY COMMENTS 07-28-25
CONSTRUCTION ENTRANCE TO BE INSTALLED PRIOR ✓ Ij�� a o o���� FUTURE o THE FOLLOWING TEMPORARY SOIL STABILIZATION PRACTICES SHALL BE IMPLEMENTED ON ALL DISTURBED
�6� TO EARTHWORK OPERATIONS AND REMOVED PRIOR ��(� AREAS AND/OR WHERE SHOWN ON PLAN,UNLESS CONDITIONS AS LISTED ABOVE DICTATE OTHERWISE:
TO FINAL PAVING BASE INSTALLATION. s �s� O PHASE 3 ��� MULCHING (BMP 52) - APPLY STRAW, GRASS, COMPOST, WOOD CHIPS OR WOOD FIBERS TO DISTURBED
\ Q� \ a AREAS TO PREVENT EROSION. SEE THE APPENDIX OF THE ESC/SWPPP NARRATIVE FOR A COMPLETE
62-LOTS
DESCRIPTION,AND/OR:
3. GEOTEXTILE (BMP 53) - APPLY NONBIODEGRADABLE SYNTHETIC FABRIC TO DISTURBED AREAS TO
PREVENT EROSION. SEE THE APPENDIX OF THE ESC/SWPPP NARRATIVE FOR A COMPLETE DESCRIPTION,
AND/OR:
s �'JAI ^\ o r Q 4. MATTING (BMP 54) - APPLY BIODEGRADABLE WOVEN OR JUTE FIBER MAT TO DISTURBED AREAS TO
c
FUTURE
- � � \ r . s ��-O°, � �V � �� PREVENT EROSION.SEE THE APPENDIX OF THE ESC/SWPPP NARRATIVE FOR A COMPLETE DESCRIPTION.
PHASE 4
W Rio � to Or,e Plata PROTECTION OF NON-ACTIVE STOCKPILES
\ � � 53-LOTS � y � • SOIL STOCKPILES: DURING THE RAINY SEASON,SOIL STOCKPILES SHOULD BE COVERED OR
PROTECTED WITH SOIL STABILIZATION MEASURES AND A TEMPORARY PERIMETER SEDIMENT
BARRIER AT ALL TIMES. DURING THE NON-RAINY SEASON,SOIL STOCKPILES SHOULD BE
COVERED OR PROTECTED WITH A TEMPORARY PERIMETER SEDIMENT BARRIER PRIOR TO THE
- . .;- . . _ - . o o <� � �� � °�_ c / �� \ EXISTING . ONSET OF PRECIPITATION.
v Cc)
y �a >
-- Ry a c STOCKPILES OF PCC RUBBLE,AC,ASPHALT CONCRETE RUBBLE,AGGREGATE BASE,OR
o i berwoed or
o ��
FUTURE PHASE 3 � � �� o a �`� ' ° � SOUTH RIDGE AGGREGATE SUB BASE: DURING THE RAINY SEASON,THE STOCKPILES SHOULD BE COVERED OR E
° i/ \ PROTECTED WITH A TEMPORARY SEDIMENT PERIMETER BARRIER AT ALL TIMES.DURING THE SZONAL 1V
`�� G ` NON-RAINY SEASON,THE STOCKPILES SHOULD BE COVERED OR PROTECTED WITH A
"62-LOTS PHASE 4 TEMPORARY PERIMETER SEDIMENT BARRIER PRIOR TO THE ONSET OF PRECIPITATION.
• STOCKPILES OF"COLD MIX":DURING THE RAINY SEASON,COLD MIX STOCKPILES SHOULD BE
Not-A-Part PLACED ON AND COVERED WITH PLASTIC OR COMPARABLE MATERIAL AT ALL TIMES.DURING 10961
- - = V / THE NON-RAINY SEASON,COLD MIX STOCKPILES SHOULD BE PLACED ON AND COVERED WITH J-- -- - - - PLASTIC OR COMPARABLE MATERIALS PRIOR TO THE ONSET OF PRECIPITATION 0
xx
• STOCKPILES/STORAGE OF PRESSURE-TREATED WOOD:DURING THE RAINY SEASON, J �T£OF
FW Fw FW FW _ / PRESSURE-TREATED WOOD SHOULD BE COVERED WITH PLASTIC OR COMPARABLE MATERIAL DEN
AT ALL TIMES.DURING THE NON-RAINY SEASON,PRESSURE-TREATED WOOD SHOULD BE
COVERED WITH PLASTIC OR COMPARABLE MATERIAL AT ALL TIMES. 0-712512025
Project No.: 121172
PROTECTION OF ACTIVE STOCKPILES
• ALL STOCKPILES SHOULD BE PROTECTED WITH A TEMPORARY LINEAR SEDIMENT BARRIER Date of Issuance: 07-28 2025
/ PRIOR TO THE ONSET OF PRECIPITATION. Project Milestone: PERMIT SUBMITTAL
n • STOCKPILES OF"COLD MIX"SHOULD BE PLACED ON AND COVERED WITH PLASTIC OR
3 COMPARABLE MATERIAL PRIOR TO THE ONSET OF PRECIPITATION. SWPPP
a
MAINTENANCE SWPPP Project
• INSPECT AND VERIFY THAT BMPS ARE IN PLACE PRIOR TO THE COMMENCEMENT OF Overview
E SWPPP Project Overview 0 150' 300' ASSOCIATED ACTIVITIES.WHILE ACTIVITIES ASSOCIATED WITH THE BMP ARE UNDERWAY,
INSPECT WEEKLY DURING THE RAINY SEASON AND AT 2-WEEK INTERVALS IN THE NON-RAINY
6.
EMm SEASON TO VERIFY CONTINUED BMP IMPLEMENTATION. ■ 0
Horizontal Scale: 1" = 150' • REPAIR AND/OR REPLACE PERIMETER CONTROLS AND COVERS AS NEEDED TO KEEP THEM
C1FUNCTIONING PROPERLY.