HomeMy WebLinkAboutC504 SWPP NARRATIVEPROJECT NO.
CHECK: DRAWN:
PLAN DATE:
DESIGN:
STATE OF
No.
PE10707583 OO14020 Mississinewa Drive
Carmel, Indiana 46033
P: 317.324.8695 F: 317.324.8717
www.Fritz-Eng.com
PRELI
MINA
RY
NOT FOR
CONST
R
U
CTI
O
N
Fritz Engineering
Services, LLC
REVISIONS AND ISSUES BYDATE
CLIENT:
PROJECT:
PROJECT LOCATION:
GENERAL NOTES / LEGEND:
SECTION, TOWNSHIP, RANGE:
TAKE 5
QUICK LUBE
TAKE 5 INDIANA, LLC
10884 GRESHAM PLACE
NOBLESVILLE, INDIANA 46060
5/16/2019
1904001
9799 MICHIGAN RD.
CARMEL, INDIANA 46032
HAMILTON COUNTY
S7, T17N, R3E
SHEET NAME
SHEET NO.
"IT'S THE
LAW"
R
Know what's below.
Call before you dig.
2 WORKING DAYS BEFORE YOU DIG. C504
SWPP NARRATIVE
7/17/2019
10/15/2019
11/5/2019
AF
AF
AF
AF AF KG
1.REV. PER TAC CMNTS
2. REV. PER CARMEL ENG
3. REV. PER CARMEL ENG
SWPPP FOR CONSTRUCTION SITES:
1. HYDROLOGIC UNIT CODE (14 DIGIT) - 05120201090070
2. IDENTIFICATION OF ALL RECEIVING WATERS - CROOKED CREEK
3. DISCHARGE POST CONSTRUCTION, 10 YEAR PROPOSED - 0.8 CFS
4. SPECIFIC POINTS WHERE STORMWATER DISCHARGE LEAVES SITE - RUNOFF FROM THE SITE WILL FOLLOW EXISTING DRAINAGE
PATTERNS TO THE GREATEST EXTEND POSSIBLE. PORTIONS OF THE SITE WILL BE UNDISTURBED AND CONTINUE TO SHEET DRAIN TO
THE ADJOINING PROPERTIES. MUCH OF THE PROJECT SITE WILL BE COLLECTED IN ONSITE DRAINAGE INLETS AND BE CONVEYED BY
A NEW STORM SEWER SYSTEM TO THE PROPOSED INFILTRATION BASIN AND DRAINAGE SYSTEM WHICH IS LOCATED ALONG THE
NORTHEAST CORNER OF THE SITE . THE PROPOSED INFILTRATION BASIN WILL PRE-TREAT THE STORM RUNOFF BEFORE IT ENTERS
THE EXISTING ROADSIDE SWALE ALONG 98TH ST. AS WELL AS PROVIDE A REDUCTION IN PEAK RUNOFF RATES.
5. THERE ARE NO KNOWN ABONDONED WELLS OR SINKHOLES ONSITE.
6. SOILS MAP: SEE THIS SHEET FOR SOILS AND DESCRIPTIONS
7. DESCRIPTION OF POTENTIAL POLLUTANT SOURCES ASSOCIATED WITH THE CONSTRUCTION ACTIVITIES: POTENTIAL POLLUTANTS
FROM CONSTRUCTION ACTIVITY SUCH AS OIL, GREASE, ANTIFREEZE, GASOLINE AND DIESEL FUEL FROM CONSTRUCTION EQUIPMENT;
SOIL EROSION; FERTILIZER AND PESTICIDES FROM LANDSCAPING.
8. TEMPORARY AND PERMANENT STORMWATER QUALITY MEASURES:
8.a. LOCATION. SEE SHEETS C501-C503
8.b. DIMENSIONS. SEE SHEETS C501-C503
8.c. DETAILED SPECIFICATIONS. SEE SHEETS C101 AND C501-C503
8.d. CONSTRUCTION DETAILS. SEE SHEETS C801-C805 AND CITY OF CARMEL GENERAL CONSTRUCTION DETAILS
8.e. MONITORING & MAINTENANCE GUIDELINES
BMP OWNER MUST ROUTINELY INSPECT THE BIORETENTION BASIN AND UPSTREAM SNOUT TO VERIFY ALL COMPONENTS ARE
FUNCTIONING AS DESIGNED AND ARE NOT IN DANGER OF FAILING. ALL BMPS NEED MAINTENANCE TO FUNCTION AS WATER QUALITY AND
QUANTITY ENHANCEMENTS. SEDIMENT THAT COLLECTS IN THE BMP SHALL BE REMOVED WHEN THE SEDIMENT ADVERSELY AFFECTS THE
ABILITY OF THE BMP TO PERFORM AS A WATER QUALITY CONTROL DEVICE
1. DEBRIS CLEANOUT (INSPECT MONTHLY)
1.1. BIORETENTION AREA AND CONTRIBUTING AREAS CLEAN OF DEBRIS, LITTER (BRANCHES, ETC.) HAVE BEEN REMOVED
1.2. STORM STR 604 SHALL BE INSPECTED FOR EXCESS FLOATABLE DEBRIS IMPACTING SNOUT FUNCTION
2. VEGETATION (INSPECT MONTHLY)
2.1. PLANT HEIGHT NOTE LESS THAN DESIGN PONDING DEPTH ,PLANT COMPOSITION ACCORDING TO APPROVED PLAN,NO EVIDENCE
OF EROSION
3. DRAINAGE FUNCTION (INSPECT MONTHLY OR AFTER RAINS IN EXCESS OF 0.5 INCHES)
3.1. INSPECT BIORETENTION AREA FOR PONDING OR WATER STORAGE LONGER THAN 48 HOURS AFTER A RAIN EVENT ENDS.
3.2. INSPECT STORM SEWER INLETS FOR CLOGGED GRATES, REMOVE DEBRIS AS APPROPRIATE
3.3. INSPECT STORM SEWER PIPING TO VERIFY FREE FLOW, REMOVE DEBRIS AS APPORPRIATE
3.4. INSPECT STORM STR. 604 AND INTERNAL SNOUT, REMOVE FLOATABLE DEBRIS AND/OR VACUUM SEDIMENT BUILDUP IN
EXCESS OF 12 INCHES IN DEPTH.
4. GENERAL CONSTRUCTION SEQUENCE:
a. CONTRACTOR SHALL SCHEDULE A PRE-CONSTRUCTION MEETING WITH THE CITY OF CARMEL STORMWATER MANAGEMENT DEPT.
317-571-2441
b. THE FOLLOWING EROSION CONTROL MEASURES SHALL BE IN PLACE PRIOR TO ANY LAND DISTURBING ACTIVITIES:
b.a. CREATE A STABILIZED CONSTRUCTION ENTRANCE
b.b. INSTALL TEMPORARY INLET PROTECTION MEASURES ON EXISTING STORM INLETS.
b.c. INSTALL TEMPORARY SILT FENCE AND/OR SILT SOCK PROTECTION AS SHOWN ON APPROVED PLANS
b.d. INSTALL TEMPORARY CONCRETE WASHOUT
c. CONTRACTOR SHALL CONTACT THE CITY OF CARMEL FOR AN INITIAL EROSION CONTROL INSPECTION TO OBTAIN FULL SIGN OFF
ON THE IMPROVEMENT LOCATION PERMIT PRIOR TO EARTHWORK ACTIVITIES.
d. ONCE LAND DISTURBING ACTIVITIES BEGIN, THE FOLLOWING PRACTICES SHALL BE PROVIDED:
d.a. THE TRAINED INDIVIDUAL SHALL MAKE WEEKLY SITE INSPECTIONS AND AFTER EVERY RAINFALL EVENT OF 0.5 INCHES AND
GREATER.
d.b. POSITIVE DRAINAGE SHALL BE MAINTAINED AT ALL TIMES. CONTRACTOR SHALL ENSURE THE DOWNSTREAM DRAINAGE
SYSTEM AND ADJACENT PROPERTIES ARE NOT RECEIVING SEDIMENT/DEBRIS LADEN RUNOFF. IF ADDITIONAL MEASURES ARE
NECESSARY TO PROTECT ADJACENT PROPERTIES OR THE DOWNSTREAM DRAINAGE SYSTEM, THE CONTRACTOR SHALL
NOTIFY THE ENGINEER AND IMPLEMENT THE NECESSARY MEASURES IMMEDIATELY.
d.c. ONCE EARTH DISTURBING ACTIVITIES BEGIN, THE ADJACENT ROADWAYS, ADJACENT DRIVES AND PARKING LOTS SHALL BE
CONTINUOUSLY MONITORED FOR SEDIMENT TRACKING. IF SEDIMENT IS FOUND, IMMEDIATE ACTION IS REQUIRED TO CLEAN
THE OFFSITE AREAS AND THE CURRENT EROSION CONTROL PRACTICES WILL NEED TO BE INSPECTED AND MODIFIED
ACCORDINGLY TO PREVENT ANY FURTHER SEDIMENT FROM LEAVING THE PROJECT SITE.
e. ONCE THE NEW STORM STRUCTURES/PIPES ARE IS IN PLACE, THE APPROPRIATE TYPE OF INLET PROTECTION MEASURES SHALL
BE PLACED.
f. CONTINUED MONITORING OF ALL EXPOSED AREAS SHALL BE PERFORMED IN ORDER TO VERIFY THE SURROUNDING AREAS ARE
NOT BECOMING SEDIMENT LADEN FROM CONSTRUCTION ACTIVITIES ONSITE.
g. AS THE CONSTRUCTION OCCURS, DISTURBED AREAS SHALL BE STABILIZED AS SOON AS THEY ARE AT FINISHED GRADE OR WILL
BE LEFT BARE FOR MORE THAN 15 DAYS.
h. PROVIDE FINAL GRADE STABILIZATION UPON FINAL GRADING OF ALL AREAS INCLUDING EROSION CONTROL BLANKETING, SEEDING
AND SODDING AS APPROPRIATE.
i. STORM SEWERS THAT BECOME SILTED DUE TO CONSTRUCTION ACTIVITIES SHALL BE CLEANED WITH A JET VACUUM AND THE
MATERIAL PROPERLY DISPOSED OF.
j. CONSTRUCTION PHASE BMP'S SHALL REMAIN IN PLACE AND CONTINUE TO BE INSPECTED UNTIL THE ENTIRE SITE HAS REACHED
THE MINIMUM VEGETATIVE COVER, 70% ESTABLISHED.
k. UPON THE SITE REACHING THE REQUIRED MINIMUM ESTABLISHED VEGETATIVE COVER, THE IDEM RULE 5 NOTICE OF TERMINATION
SHALL BE SUBMITTED TO THE MS4 DEPARTMENT FOR APPROVAL PRIOR TO SUBMITTING IT TO IDEM.
10. LOCATION OF PROPOSED SOIL STOCKPILES, BORROW, AND/OR DISPOSAL AREAS : TOPSOIL STOCKPILE SHOWN ON C502 ON WEST
SIDE OF SITE. THERE ARE NO OFFSITE EARTHWORK ACTIVITIES ANTICIPATED WITH THIS PROJECT.
11. TEMPORARY AND PERMANENT SURFACE STABILIZATION METHODS APPROPRIATE FOR EACH SEASON
TEMPORARY SEEDING WILL BE USED AS TEMPORARY SURFACE SABILIZATION MEASURES IF AREAS ARE TO BE LEFT IDLE FOR MORE
THAN 15 DAYS. SEE SHEETS C501-C503.
PERMANENT SEEDING, TREES, AND SHRUBS WILL BE USED AS PERMANENT SURFACE STABILIZATION MEASURES. THE DETAILS AND
SPECIFICATIONS FOR EACH STATED MEASURE ARE ON SHEETS C503 AND L101.
12. EROSION AND SEDIMENT CONTROL SPECIFICATIONS FOR INDIVIDUAL BUILDING LOTS - NOT APPLICABLE TO THIS PROJECT.
13. MATERIAL HANDLING, STORAGE, AND SPILL PREVENTION PLAN
THE INTENTION OF THIS SPILL PREVENTION, CONTROL AND COUNTERMEASURES (SPCC) IS TO ESTABLISH THE PROCEDURES AND
EQUIPMENT REQUIRED TO PREVENT THE DISCHARGE OF OIL AND HAZARDOUS SUBSTANCES IN QUANTITIES THAT VIOLATE
APPLICABLE WATER QUALITY STANDARDS, CAUSE A SHEEN UPON OR DISCOLORATION OF THE SURFACE OF NAVIGABLE
WATERS OR ADJOINING SHORELINES, OR CAUSE SLUDGE OR EMULSION TO BE DEPOSITED BENEATH THE SURFACE OF THE
WATER OR ADJOINING SHORELINES. THE PLAN ALSO ESTABLISHES THE ACTIVITIES REQUIRED TO MITIGATE SUCH
DISCHARGES (I.E., COUNTERMEASURES) SHOULD THEY OCCUR.
DEFINITIONS:
POLLUTANT: MEANS POLLUTANT OF ANY KIND OR IN ANY FORM, INCLUDING BUT NOT LIMITED TO SEDIMENT, PAINT,
CLEANING AGENTS, CONCRETE WASHOUT, PESTICIDES, NUTRIENTS, TRASH, HYDRAULIC FLUIDS, FUEL, OIL, PETROLEUM, FUEL
OIL, SLUDGE, OIL REFUSE, AND OIL MIXED WITH WASTES OTHER THAN DREDGED SOIL.
DISCHARGE:
INCLUDES BUT IS NOT LIMITED TO, ANY SPILLING, LEAKING, PUMPING, POURING, EMITTING, EMPTYING, OR DUMPING.
NAVIGABLE WATERS:
MEANS ALL WATERS OF THE UNITES STATES THAT ARE CONNECTED WITH A NAVIGABLE STREAM, LAKE, OR SEA. [NOTE:
THIS DEFINITION IS USUALLY INTERPRETED TO MEAN ANY WASTEWATER(EVEN NORMALLY DRY WASH OR STORM SEWER)
THAT EVENTUALLY DRAINS INTO A NAVIGABLE STREAM].
PLAN REVIEW AND AMENDMENTS:
THIS PLAN SHALL BE REVIEWED AND/OR AMENDED, IF NECESSARY, WHENEVER THERE IS A CHANGE IN THE DESIGN OF
THE SITE, CONSTRUCTION, OPERATION, OR MAINTENANCE WHICH MATERIALLY AFFECTS THE SITES' POTENTIAL FOR THE
DISCHARGE OF REGULATED MATERIAL.
PREDICTION OF POTENTIAL SPILLS:
1. NEAREST NAVIGABLE WATER: WHITE RIVER
2. POSSIBLE SPILL SOURCES (DURING AND POST CONSTRUCTION): VEHICULAR SOURCES SUCH AS LEAKING FUEL OR OIL, BRAKE FLUID,
GREASE, ANTIFREEZE; CONSTRUCTION TRASH AND DEBRIS, BIOLOGICAL AGENTS FOUND IN TRASH AND DEBRIS, FERTILIZERS,
HOUSEHOLD ITEMS INCLUDING BUT NOT LIMITED TO CLEANING AGENTS, CHEMICALS, PAINT, HERBICIDES AND PESTICIDES.
3. GROUNDWATER CONTAMINATION: THIS FACILITY MAINTAINS NO ABOVE GROUND OR UNDER GROUND STORAGE TANKS.
THEREFORE, IT IS FELT THAT THERE IS LITTLE OR NO POSSIBILITY OF POST CONSTRUCTION GROUNDWATER CONTAMINATION.
ALERT PROCEDURES FOR SPILLS:
1. ANY PERSONNEL OBSERVING A SPILL WILL IMMEDIATELY INSTIGATE THE FOLLOWING PROCEDURE:
a.) DIALING "0" FROM ANY TELEPHONE.
b.) NOTIFY THE APPROPRIATE EMERGENCY PERSONNEL.
2. THE EMERGENCY COORDINATOR WILL THEN TAKE THE FOLLOWING ACTIONS:
a.) BARRICADE THE AREA ALLOWING NO VEHICLES TO ENTER OR LEAVE THE SPILL ZONE.
b.) NOTIFY THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT, OFFICE OF EMERGENCY RESPONSE BY CALLING
THE APPROPRIATE TELEPHONE NUMBER:
OFFICE: 317-233-7745
TOLL FREE: 800-233-7745
ALSO THE NATIONAL RESPONSE CENTER AT 800-424-8802 AND PROVIDE THE FOLLOWING INSTRUCTIONS:
- TIME OF OBSERVATION OF THE SPILL
- LOCATION OF THE SPILL
- IDENTITY OF MATERIAL SPILLED
- PROBABLE SOURCE OF THE SPILL
- PROBABLE TIME OF THE SPILL
- VOLUME OF THE SPILL AND DURATION
- PRESENT AND ANTICIPATED MOVEMENT OF THE SPILL
- WEATHER CONDITIONS
- PERSONNEL AT THE SCENE
- ACTION INITIATED BY PERSONNEL
c.) NOTIFY THE CARMEL FIRE DEPARTMENT PHONE: 9-1-1
d.) NOTIFY THE HAMILTON COUNTY SWCD OFFICE (317) 773-2181
e.) NOTIFY THE MS4 DEPARTMENT OF CARMEL STORMWATER DEPARTMENT (317) 571-2411
f.) NOTIFY THE CARMEL POLICE DEPARTMENT PHONE: 9-1-1
g.) NOTIFY WASTE RECOVERY CONTRACTOR, MAINTENANCE PERSONNEL OR OTHER CONTRACTUAL PERSONNEL AS
NECESSARY FOR CLEANUP.
h.) COORDINATE AND MONITOR CLEANUP UNTIL THE SITUATION HAS BEEN STABILIZED AND ALL SPILLS HAVE BEEN
ELIMINATED.
i.) COOPERATE WITH THE IDEM-OER OR PROCEDURES AND REPORTS INVOLVED WITH THE EVENT.
CLEANUP PARAMETERS:
1. THE OWNER SHALL BE CONTINUALLY KEPT INFORMED, MAINTAIN LISTS OF QUALIFIED CONTRACTORS AND AVAILABLE VAC-TRUCKS,
TANK PUMPERS AND OTHER EQUIPMENT READILY ACCESSIBLE FOR CLEAN UP OPERATIONS. IN ADDITION, A CONTINUALLY UPDATED
LIST OF AVAILABLE ABSORBENT MATERIALS AND CLEAN-UP SUPPLIES SHOULD BE KEPT ON SITE.
2. ALL MAINTENANCE PERSONNEL WILL BE MADE AWARE OF TECHNIQUES FOR PREVENTION OF SPILLS. THEY WILL BE INFORMED OF
THE REQUIREMENTS AND PROCEDURES OUTLINED IN THIS PLAN. THEY WILL BE KEPT ABREAST OF CURRENT DEVELOPMENTS OR
NEW INFORMATION ON THE PREVENTION OF SPILLS AND / OR NECESSARY ALTERATIONS TO THIS PLAN.
3. WHEN SPILLS OCCUR WHICH COULD ENDANGER HUMAN LIFE AND THIS BECOMES PRIMARY CONCERN, THE DISCHARGE OF THE LIFE
SAVING PROTECTION FUNCTION WILL BE CARRIED OUT BY THE LOCAL POLICE AND FIRE DEPARTMENTS.
4. ABSORBENT MATERIALS, WHICH ARE USED IN CLEANING UP SPILLED MATERIALS, WILL BE DISPOSED OF IN A MANNER SUBJECT TO
THE APPROVAL OF THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT.
5. FLUSHING OF SPILLED MATERIAL WITH WATER WILL NOT BE PERMITTED UNLESS SO AUTHORIZED BY THE INDIANA DEPARTMENT
OF ENVIRONMENTAL MANAGEMENT.
DETAIL OF A DEWATERING BAG
DANDY DEWATERING BAG
SEWN IN SPOUT
PUMP
DISCHARGE
HOSE TIE DOWN STRAP
WATER
PUMP
FLOW
DANDY
DEWATERING BAG
FILTERED
WATER
SIDE VIEWAGGREGATE OR STRAW
UNDERLAY
(FOR ADDED FLOW)
14. CONTACT INFORMATION FOR THE TRAINED INDIVIDUAL RESPONSIBLE FOR STORMWATER POLLUTION PREVENTION FOR THE PROJECT SITE
a. NAME JR FREIBURGER, JRF CONSTRUCTION
b. ADDRESS 233 E. 175TH STREET, WESTFIELD, INDIANA 46074
c. TELEPHONE NUMBER 317-896-1100
d. EMAIL JR@JRFCONSTRUCTION.COM
e. LIST OF QUALIFICATIONS GENERAL CONTRACTOR
15. REVISION RECORD
REV. DATE DESCRIPTION DES. BY APP. BY
SWPPP FOR POST-CONSTRUCTION
1. POTENTIAL LANDUSE POLLUTANTS
POLLUTANT: MEANS POLLUTANT OF ANY KIND OR IN ANY FORM, INCLUDING BUT NOT LIMITED TO SEDIMENT, PAINT, CLEANING AGENTS,
CONCRETE WASHOUT, PESTICIDES, NUTRIENTS, TRASH, HYDRAULIC FLUIDS, FUEL, OIL, PETROLEUM, FUEL OIL, SLUDGE, OIL REFUSE,
AND OIL MIXED WITH WASTES OTHER THAN DREDGED SOIL.
VEHICULAR SOURCES SUCH AS LEAKING FUEL OR OIL, BRAKE FLUID, GREASE, ANTIFREEZE; CONSTRUCTION TRASH AND DEBRIS, BIOLOGICAL
AGENTS FOUND IN TRASH AND DEBRIS, FERTILIZERS, HOUSEHOLD ITEMS INCLUDING BUT NOT LIMITED TO CLEANING AGENTS, CHEMICALS, PAINT,
HERBICIDES, AND PESTICIDES.
GROUNDWATER CONTAMINATION: THIS FACILITY MAINTAINS NO ABOVE GROUND OR UNDER GROUND STORAGE TANKS. THEREFORE, IT IS FELT
THAT THERE IS LITTLE OR NO POSSIBILITY OF POST CONSTRUCTION GROUNDWATER CONTAMINATION.
2. POST CONSTRUCTION STORMWATER QUALITY MEASURES:
A. LOCATION. SEE SHEETS C301,C401 AND C503
B. DIMENSIONS. SEE SHEETS C301,C401 AND C503
C. SIZING CALCULATIONS: SEE DRAINAGE CALCULATIONS
D. DETAILED SPECIFICATIONS: SEE SHEETS C101 AND C504
E. CONSTRUCTION DETAILS: SEE SHEETS C801-C805
1. STORM STRUCTURE 621 - CATCH BASIN WITH SUMP, SNOUT F12 AND BIO-SKIRT, LOCATED WEST OF THE BIORETENTION BASIN NOTED
BELOW.
2. BIORETENTION BASIN - LOCATED IN THE SOUTHEAST CORNER OF THE SITE.
3. TEMPORARY,PERMANENT SEEDING, TREES AND SHRUBS
4. ON GOING MAINTENANCE BY THE OWNER TO INSURE THAT SEDIMENT, TRASH AND POLLUTANTS DO NOT LEAVE THE SITE.
5. SEE BMP OPERATIONS AND MAINTENANCE MANUAL (O&M MANUAL) FOR DETAILS RELATED TO POST CONSTRUCTION STORMWATER
QUALITY MEASURES.
3. POST CONSTRUCTION STORMWATER QUALITY MEASURES:
SEQUENCE DESCRIBING STORMWATER QUALITY MEASURE IMPLEMENTATION:
1. INSPECT AND MAINTAIN ALL EROSION CONTROL MEASURES AS DETAILED IN THE STORMWATER POLLUTION PREVENTION MEASURES
MAINTENANCE REQUIREMENTS BEGINNING IMMEDIATELY AFTER INSTALLATION AND CONTINUING UNTIL VEGETATION HAS BEEN
SUFFICIENTLY ESTABLISHED AND ALL CONSTRUCTION ACTIVITY IS COMPLETE.
2. REMOVE ALL SILT FENCES, ETC. ONLY AFTER SEEDING AND SUFFICIENT VEGETATIVE GROWTH HAS BEEN ESTABLISHED IN EACH AREA
TO A POINT WHERE SEDIMENT/POLLUTANTS WILL NOT ENTER THE CREEK.
3. INSPECTION AND MAINTENANCE OF ALL AREAS IS THE RESPONSIBILITY OF THE CONTRACTOR UNTIL ACCEPTED BY THE GOVERNING
MS4 OFFICE. INSPECTION AND MAINTENANCE OF BMP'S SHALL FOLLOW TIME TABLES SET FORTH IN THE MAINTENANCE AND
OPERATIONS MANUAL.
4. STORMWATER QUALITY MEASURES TO BE IMPLEMENTED TO PREVENT OR MINIMIZE ADVERSE IMPACTS TO STREAM & RIPARIAN HABITATS.
THE PROPOSED, VEGETATED BIO RETENTION BASIN, PROPOSED TURF, AND LANDSCAPE PLANT MATERIAL WILL GENERATE VERY LITTLE IF ANY
POLLUTANTS THAT COULD CAUSE HARM TO STREAM OR RIPARIAN
5. AN OPERATION AND MAINTENANCE MANUAL FOR ALL POST-CONSTRUCTION STORMWATER QUALITY MEASURES:
a. THE PROJECT INCLUDES THE CONSTRUCTION OF TWO NEW SINGLE-STORY OIL CHANGE BUILDING AS WELL
AS ASSOCIATED PARKING, DRIVE AISLES, LOADING AREAS AND UTILITY SERVICE INFRASTRUCTURE.
STORMWATER RUNOFF FROM THE DEVELOPED SITE WILL FOLLOW EXISTING DRAINAGE PATTERNS TO THE
GREATEST EXTENT POSSIBLE. ALL PROPOSED ONSITE IMPERVIOUS SURFACES WILL DIRECT RUNOFF TO A
NEW INFILTRATION BASIN WHICH WILL INFILTRATE AND LIMIT THE DISCHARGE TO THE EXISTING 98TH STREET
ROADSIDE DITCH BY PROVIDING STORMWATER DETENTION WITHIN. SOME AREAS WILL BE SUBJECT TO
DIRECT SHEET DRAIN RUNOFF BUT THOSE WILL BE LIMITED TO AREAS LESS THAN OR EQUAL TO THOSE
CONTRIBUTING UNDER EXISTING CONDITIONS AND AREAS OF PERVIOUS SURFACE COVERAGE. AS
REQUIRED BY SECTION 302.06(7) OF THE MANUAL, THE SMALLEST PERMISSIBLE ORIFICE CONTROL IS 6”
DIAMETER REGARDLESS IF THE RESULTING DISCHARGE EXCEEDS THE ALLOWABLE OUTFLOWS. THE
PROPOSED DETENTION/INFILTRATION BASIN UTILIZES A 6” DIAMETER UNDERDRAIN MODELED AS AN
ORIFICE. A SUMMARY OF PROPOSED RUNOFF/DISCHARGE IS PROVIDED BELOW.
b. OWNER OF BMP:
ELLIOT SMITH
BALDWIN CAPITAL PARTNERS
10884 GRESHAM PLACE
NOBLESVILLE, IN. 46060
c. BMP OWNER ASSUMES ALL OPERATIONAL AND MAINTENANCE COSTS FOR BMP.
d. BMP OWNER SHALL GRANT ACCESS TO THE CITY OF CARMEL TO MAINTAIN THE BMP AS NEEDED.
6. PLEASE SEE THE O&M MANUAL FOR SPECIFICATIONS , DETAILS, AND INSPECTION REPORT REQUIREMENTS
RELATED TO THIS PROJECT.
SOIL MAP & DESCRIPTIONS
THE BROOKSTON SERIES CONSISTS OF VERY
DEEP, POORLY DRAINED SOILS FORMED IN
AS MUCH AS 51 CM (20 INCHES) OF SILTY
MATERIAL AND THE UNDERLYING LOAMY TILL
IN DEPRESSIONS ON TILL PLAINS AND
MORAINES. SLOPE RANGES FROM 0 TO 3
PERCENT.PERMEABILITY IS MODERATE IN
THE SUBSOIL AND MODERATELY SLOW IN
THE UNDERLYING MATERIAL. SUBJECT SOIL
DOES NOT PRESENT ANY FORSEEABLE
LIMITATIONS TO THE PROPOSED
DEVELOPMENT.
THE CROSBY SERIES CONSISTS OF VERY
DEEP, SOMEWHAT POORLY DRAINED SOILS
THAT ARE MODERATELY DEEP TO DENSE
TILL. CROSBY SOILS FORMED IN AS MUCH AS
56 CM (22 INCHES) OF LOESS OR OTHER
SILTY MATERIAL AND IN THE UNDERLYING
LOAMY TILL. THEY ARE ON TILL PLAINS.
SLOPE RANGES FROM 0 TO 6 PERCENT.
PERMEABILITY IS MODERATE OR
MODERATELY SLOW IN AND ABOVE THE
ARGILLIC HORIZON, AND SLOW OR VERY
SLOW BELOW THE ARGILLIC HORIZON.
02/19/20