Construction Drawings - C2.00 V1DWITIA y-
APPROVED
OVOa22
EROSION CONTROL PLAN
FOR
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STORM WATER POLLUTION PREVENTION PLAN GENERAL NOTES
EROSION CONTROL GENERAL NOTES
1. THE STORMWATER MANAGEMENT PLAN IN COMPRISED OF THESE DRAWINGS ("SITE MAP"). THE STANDARD DETAILS, THE PLAN
NARRATIVE, ATTACHMENTS INCLUDED IN STORMWATER POLLUTION PREVENTION PLAN (SWPPP). PLUS THE PERMIT AND ALL
SUBSEQUENT REPORTS AND RELATED DOCUMENTS.
2. ALL CONTRACTORS AND SUBCONTRACTORS INVOLVED WITH STORMWATER MANAGEMENT SHALL OBTAIN A COPY OF THE STORMWATER
MANAGEMENT PLAN AND THE IDAHO POLLUTANT DISCHARGE ELIMINATION SYSTEM GENERAL PERMIT (IPDES) AND BECOME FAMILIAR
WITH THEIR CONTENTS.
3. THE CONTRACTOR SHALL IMPLEMENT BEST MANAGEMENT PRACTICES AS REQUIRED BY THE SWPPP. ADDITIONAL BEST MANAGEMENT
PRACTICES SHALL BE IMPLEMENTED AS DICTATED BY CONDITIONS AT NO ADDITIONAL COST OF OWNER THROUGHOUT ALL PHASES OF
CONSTRUCTION.
4. BEST MANAGEMENT PRACTICES (BMP'S) AND CONTROLS SHALL CONFORM TO FEDERAL, STATE, OR LOCAL REQUIREMENTS OR MANUAL
OF PRACTICE, AS APPLICABLE. CONTRACTOR SHALL IMPLEMENT ADDITIONAL CONTROLS AS DIRECTED BY PERMITTING AGENCY OR
OWNER.
5. SITE MAP MUST CLEARLY DELINEATE ALL STATE WATERS. PERMITS FOR ANY CONSTRUCTION ACTIVITY IMPACTING STATE WATERS OR
REGULATED WETLANDS MUST BE MAINTAINED ON SITE AT ALL TIMES.
6. CONTRACTOR SHALL MINIMIZE CLEARING TO THE MAXIMUM EXTENT PRACTICAL OR AS REQUIRED BY THE GENERAL PERMIT.
7. GENERAL CONTRACTOR SHALL DENOTE ON PLAN THE TEMPORARY PARKING AND STORAGE AREA WHICH SHALL ALSO BE USED AS THE
EQUIPMENT MAINTENANCE AND CLEANING AREA, EMPLOYEE PARKING AREA, AND AREA FOR LOCATING PORTABLE FACILITIES, OFFICE
TRAILERS, AND TOILET FACILITIES.
8. ALL WASH WATER (CONCRETE TRUCKS, VEHICLE CLEANING, EQUIPMENT CLEANING, ETC.) SHALL BE DETAINED AND PROPERLY TREATED
OR DISPOSED.
9. SUFFICIENT OIL AND GREASE ABSORBING MATERIALS AND FLOTATION BOOMS SHALL BE MAINTAINED ON -SITE OR SHALL BE READILY
AVAILABLE TO CONTAIN AND CLEAN UP FUEL OR CHEMICAL SPILLS AND LEAKS.
10. DUST ON THE SITE SHALL BE CONTROLLED. THE USE OF MOTOR OILS AND OTHER PETROLEUM -BASED OR TOXIC LIQUIDS FOR DUST
SUPPRESSION OPERATIONS IS PROHIBITED.
11. RUBBISH, TRASH, GARBAGE, LITTER OR OTHER SUCH MATERIALS SHALL BE DEPOSITED INTO SEALED CONTAINERS, MATERIALS SHALL
BE PREVENTED FROM LEAVING THE PREMISES THOUGH THE ACTION OF WIND OR STORMWATER DISCHARGE INTO DRAINAGE DITCHES OR
WATERS OF THE STATE.
12. ALL STORMWATER MANAGEMENT MEASURES PRESENTED ON THIS PLAN, AND IN THE STORMWATER MANAGEMENT PLAN, SHALL BE
INITIATED AS SOON AS PRACTICABLE.
13. DISTURBED PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITY HAS STOPPED FOR AT LEAST 21 DAYS SHALL BE TEMPORARILY
SEEDED. THESE AREAS SHALL BE SEEDED NO LATER THAN 14 DAYS FROM THE LAST CONSTRUCTION ACTIVITY OCCURRING IN THESE
AREAS.
14. DISTURBED PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITY HAS PERMANENTLY STOPPED SHALL BE PERMANENTLY SEEDED.
THESE AREAS SHALL BE SEEDED NO LATER THAN 14 DAYS AFTER THE LAST CONSTRUCTION ACTIVITY OCCURRING IN THESE AREAS.
REFER TO THE GRADING PLAN AND/OR LANDSCAPE PLAN.
15.IF THE ACTION OF VEHICLES TRAVELING OVER THE GRAVEL CONSTRUCTION ENTRANCES IS NOT SUFFICIENT TO REMOVE THE MAJORITY
OF DIRT OR MUD, THE TIRES MUST BE WASHED BEFORE THE VEHICLES ENTER A PUBLIC ROAD. IF WASHING IS USED, PROVISIONS
MUST BE MADE TO INTERCEPT THE WASH WATER AND TRAP THE SEDIMENT BEFORE IT IS CARRIED OFF THE SITE.
16. ALL MATERIALS SPILLED, DROPPED, WASHED, OR TRACKED FROM VEHICLES ONTO ROADWAYS OR INTO STORM DRAINS MUST BE
REMOVED IMMEDIATELY.
17. CONTRACTOR OR SUBCONTRACTORS WILL BE RESPONSIBLE FOR REMOVING SEDIMENT IN THE DOWNSTREAM DETENTION POND AND ANY
SEDIMENT THAT MAY HAVE COLLECTED IN THE STORM SEWER DRAINAGE SYSTEMS IN CONJUNCTION WITH THE STABILIZATION OF THE
SITE.
a 18. ON -SITE AND OFF -SITE STOCKPILE AND BORROW AREAS SHALL BE PROTECTED FROM EROSION AND SEDIMENTATION THROUGH
IMPLEMENTATION OF BEST MANAGEMENT PRACTICES. STOCKPILE AND BORROW AREA LOCATIONS SHALL BE NOTED ON THE SITE MAP
AND PERMITTED IN ACCORDANCE WITH GENERAL PERMIT REQUIREMENTS. THE CONTRACTOR SHALL USE VEHICLE TRACKING CONTROL AT
ALL LOCATIONS WHERE VEHICLES WILL ENTER OR EXIT THE SITE. CONTROL FACILITIES WILL BE MAINTAINED WHILE CONSTRUCTION IS IN
E PROGRESS, MOVED WHEN NECESSARY, AND REMOVED WHEN THE SITE IS PAVED.
a 19. SLOPES SHALL BE LEFT IN A ROUGHENED CONDITION DURING THE GRADING PHASE TO REDUCE RUNOFF VELOCITIES AND EROSION.
20.DUE TO THE GRADE CHANGES DURING THE DEVELOPMENT OF THE PROJECT, THE CONTRACTOR SHALL BE RESPONSIBLE FOR ADJUSTING
THE EROSION CONTROL MEASURES (SILT FENCES, DIVERSION SWALES, ETC.) TO PREVENT EROSION.
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21. ALL CONSTRUCTION SHALL BE STABILIZED AT THE END OF EACH WORKING DAY. THIS INCLUDES BACKFILLING OF TRENCHES FOR
UTILITY CONSTRUCTION AND PLACEMENT OF GRAVEL OR BITUMINOUS PAVING FOR ROAD CONSTRUCTION.
22. ADDITIONAL EROSION CONTROL MEASURES MAY BE REQUIRED DUE TO UNFORESEEN PROBLEMS OR IF THE PLAN DOES NOT FUNCTION
AS INTENDED. A REPRESENTATIVE OF THE CITY OF MERIDIAN PUBLIC WORKS DEPARTMENT MAY REQUIRE ADDITIONAL CONTROL DEVICES
UPON INSPECTION OF PROPOSED FACILITIES.
23. INLET PROTECTION DEVICES SHALL BE INSTALLED IMMEDIATELY UPON INDIVIDUAL INLETS BECOMING FUNCTIONAL.
24. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE DISPOSED OF WITHIN 30 DAYS AFTER FINAL STABILIZATION.
Y FINAL STABILIZATION HAS OCCURRED WHEN ALL SOIL -DISTURBING ACTIVITIES ARE COMPLETED AND A UNIFORM PERENNIAL VEGETATIVE
COVER WITH A DENSITY OF 70% HAS BEEN EMPLOYED.
25. THE SITE IS LOCATED WITHIN ZONE X. ZONE X IS AREA DETERMINED TO BE OUTSIDE THE 500 YEAR FLOOD PLAIN. ZONING
g INFORMATION IS BASED ON FEMA MAP #16001CO234J, ADA COUNTY, ID AND INCORPORATED AREAS. EFFECTIVE DATE JUNE 19, 2020.
26. THERE WILL BE NO ASPHALT OR CONCRETE BATCH PLANTS ON SITE.
27. THE POTENTIAL FOR SOIL EROSION FOR THIS SITE IS SLIGHT TO MODERATE.
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28. DAILY INSPECTIONS BY THE PROJECT SUPERINTENDENT, BI-WEEKLY INSPECTIONS BY THE CONTRACTOR'S COMPLIANCE OFFICER, AND
MONTHLY INSPECTIONS BY THE OWNER'S CONSTRUCTION MANAGER MUST BE MADE TO DETERMINE THE EFFECTIVENESS OF THE SWPPP.
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CONSULTANTS
PROPERTY OWNER: CIVIL ENGINEER: GEOTECHNICAL ENGINEER:
KB HOMES IDAHO LLC. KIMLEY-HORN NATURAL RESOURCE SOLUTIONS, LLC
1414 W BANNOCK ST. 950 BANNOCK ST, SUITE 1100 5740 N. APPLEBROOK WAY
BOISE, IDAHO 83702 BOISE, ID 83702 BOISE, ID 83713
CONTACT:SABRINA DURTCHI CONTACT: ABBEY HAHN, P.E. CONTACT:HARLEY R. NOE
PHONE: (208) 250-6161 PHONE: (208) 917-4977 PHONE: (208) 850-4926
EMAIL: Abbey.Hohn®kimley-horn.com
DEVELOPER:
i KB HOMES IDAHO LLC. SURVEYOR:
= 1414 W BANNOCK ST. LAND SOLUTIONS
BOISE, ID 83702 231 E 5TH ST, SUITE A
CONTACT:SABRINA DURTCHI MERIDIAN, ID 83642
PHONE: (208) 250-6161 CONTACT:CLINT HANSEN
EMAIL: sdurtchi®kbhome.com PHONE: (208) 288-2040
AGENCY CONTACTS
g PLANNING: ELECTRIC:
CITY OF MERIDIAN IDAHO POWER
CONTACT: SONYA ALLEN CONTACT: ETHAN MORGAN
(208)-489-0579 (208)-388-2356
ENGINEERING: TELEPHONE:
CITY OF MERIDIAN CAMBRIDGE TELEPHONE
CONTACT: AMANDA MCNUTT CONTACT: DAN MORRIS
z (208)-489-0311 (208)-257-8240
FIRE DEPARTMENT:
MERIDIAN FIRE DEPARTMENT STORM DRAIN:
CONTACT: JOE BONIGIORNO ACHD
(208)489-0458 CONTACT: REGINA CUNNINGHAM
(208)-387-1681
GAS SERVICE:
INTERMOUNTIAN GAS CABLE:
s CONTACT: BRYCE OSTLER SPARKLIGHT
(208)-377-6812 CONTACT: TERRY ALSUP
(208)-455-5548
Call before you dig.
CALL 2 BUSINESS DAYS
IN ADVANCE BEFORE
YOU DIG, GRADE, OR
EXCAVATE FOR THE
MARKING OF
UNDERGROUND
MEMBER UTILITIES
CAUTION: NOTICE TO CONTRACTOR
THE CONTRACTOR IS SPECIFICALLY CAUTIONED THAT THE LOCATION AND/OR ELEVATION OF EXISTING UTILITIES
AS SHOWN ON THESE PLANS IS BASED ON RECORDS OF THE VARIOUS UTILITY COMPANIES AND, WHERE
POSSIBLE, MEASUREMENTS TAKEN IN THE FIELD. THE INFORMATION IS NOT TO BE RELIED ON AS BEING
EXACT OR COMPLETE. THE CONTRACTOR MUST CALL THE LOCAL UTILITY LOCATION CENTER AT LEAST 48
HOURS BEFORE ANY EXCAVATION TO REQUEST EXACT FIELD LOCATIONS OF THE UTILITIES. IT SHALL BE THE
RESPONSIBILITY OF THE CONTRACTOR TO RELOCATE ALL EXISTING UTILITIES WHICH CONFLICT WITH THE
PROPOSED IMPROVEMENTS SHOWN ON THE PLANS.
GRAYCLIFF ESTATES PHASE 2
VICINITY MAP
NOT TO SCALE
701 W HARRIS ST
MERIDIAN, IDAHO 83642
(SEC 25 3N 1 W)
SHEET INDEX
C2.00
EROSION CONTROL COVER SHEET
C2.10
EROSION CONTROL PLAN
C2.20
EROSION CONTROL PLAN
C2.30
EROSION CONTROL CONSTRUCTION DETAILS
STORM WATER POLLUTION PREVENTION PLAN MAINTENANCE NOTES
ALL MEASURES STATED ON THIS EROSION AND SEDIMENT CONTROL PLAN, AND IN THE STORM WATER POLLUTION PREVENTION PLAN,
SHALL BE MAINTAINED IN FULLY FUNCTIONAL CONDITION UNTIL NO LONGER REQUIRED FOR A COMPLETED PHASE OF WORK OR FINAL
STABILIZATION OF THE SITE. ALL EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE CHECKED BY A QUALIFIED PERSON IN
ACCORDANCE WITH THE CONTRACT DOCUMENTS OR THE APPLICABLE PERMIT, WHICHEVER IS MORE STRINGENT, AND REPAIRED IN
ACCORDANCE WITH THE FOLLOWING:
1. INLET PROTECTION DEVICES AND BARRIERS SHALL BE REPAIRED OR REPLACED IF THEY SHOW SIGNS OF UNDERMINING, OR
DETERIORATION.
2. ALL SEEDED AREAS SHALL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED,
WATERED AND RESEEDED AS NEEDED.
3. SILT FENCES SHALL BE REPAIRED TO THEIR ORIGINAL CONDITIONS IF DAMAGED. SEDIMENT SHALL BE REMOVED FROM THE SILT FENCES
WHEN IT REACHES ONE-HALF THE HEIGHT OF THE SILT FENCE.
4. THE CONSTRUCTION ENTRANCES SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOW OF MUD ONTO
PUBLIC RIGHTS -OF -WAY. THIS MAY REQUIRE PERIODIC TOP DRESSING OF THE CONSTRUCTIONS ENTRANCES AS CONDITIONS DEMAND.
5. THE TEMPORARY PARKING AND STORAGE AREAS SHALL BE KEPT IN GOOD CONDITION (SUITABLE FOR PARKING AND STORAGE). THIS
MAY REQUIRE PERIODIC TOP DRESSING OF THE TEMPORARY PARKING AS CONDITIONS DEMAND.
6. OUTLET STRUCTURES IN THE SEDIMENTATION BASINS SHALL BE MAINTAINED IN OPERATIONAL CONDITIONS AT ALL TIMES. SEDIMENT
SHALL BE REMOVED FROM THE SEDIMENT BASINS OR TRAPS WHEN THE DESIGN CAPACITY HAS BEEN REDUCED BY 50%.
7. IF THE STONES IN THE GRAVEL INLET SEDIMENT FILTERS BECOME CLOGGED WITH SEDIMENT, THE STONES MUST BE PULLED AWAY,
CLEANED AND REPLACED.
8. THE EMBANKMENT OF THE SEDIMENTATION BASIN SHALL BE CHECKED REGULARLY TO ENSURE THAT IT IS STRUCTURALLY SOUND AND
HAS NOT BEEN DAMAGED BY EROSION OR CONSTRUCTION EQUIPMENT.
9. ALL TEMPORARY SEDIMENT TRAP AND SEDIMENTATION BASIN STRUCTURES SHALL BE CHECKED DAILY TO ENSURE THAT THEY ARE
STRUCTURALLY SOUND AND HAVE NOT BEEN DAMAGED BY EROSION OR CONSTRUCTION EQUIPMENT. SEDIMENT DEPOSITION SHALL BE
REMOVED PERIODICALLY TO ENSURE FULL VOLUME IS AVAILABLE IN THE POND.
10. THE CONTRACTOR SHALL ENSURE THAT OFF -SITE AREAS USED FOR BORROW OR SPOIL OF MATERIALS USED FOR THIS PROJECT ARE
PERMITTED IN ACCORDANCE WITH IPDES REQUIREMENTS AND APPROPRIATE EROSION CONTROL MEASURE AND BMP'S BE PLACED TO
ENSURE THAT EROSION SEDIMENT IS CONTAINED.
SOIL EROSION / SEDIMENTATION
CONTROL OPERATION TIME SCHEDULE
NOTE: GENERAL CONTRACTOR TO COMPLETE TABLE WITH THEIR SPECIFIC PROJECT SCHEDULE
CONSTRUCTION SEQUENCE
JAN
FEB
MAR
APR
MA
JUN
JUL
AUG
SEP
OCT
NOV
DEC
JAN
FEB
MAR
APR
MA
JUN
TEMPORARY SEDIMENT CONTROLS
CLEAR AND GRUB SITE
MASS GRADING
EXCAVATE UTILITIES, BLDG. FOUNDATION
SITE CONSTRUCTION
PERMANENT CONTROL STRUCTURES
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