HomeMy WebLinkAboutC-105 NarrativeCONSTRUCTION/STORMWATER POLLUTION PREVENTION PLAN (SWP3) NARRATIVE
Al. PLAN INDEX
A. CONSTRUCTION PLAN ELEMENTS LOCATION
A2. 11 BY 17-INCH PLAT SHOWING BUILDING LOT NUMBERS/BOUNDARIES AND ROAD LAYOUT/NAMES.: ....................................ATTACHMENTS
A3. NARRATIVE DESCRIBING NATURE AND PURPOSE: ..........................................................................................................................THIS SHEET
A4. VICINITY MAP SHOWING PROJECT LOCATION: ............................................................................................................................SHEET C-100
A5. LEGAL DESCRIPTION OF THE PROJECT SITE: .............................................................................................................................. ATTACHMENTS
A6. LOCATION OF ALL LOTS AND PROPOSED SITE IMPROVEMENTS: ........................................................................................ SEE SHEET C-104
A7. HYDROLOGIC UNIT CODE (14 DIGIT): ............................................................................................................................................THIS SHEET
A8. NOTATION OF ANY STATE OR FEDERAL WATER QUALITY PERMITS: ..............................................................................................THIS SHEET
A9. SPECIFIC POINTS WHERE STORM WATER DISCHARGE WILL LEAVE THE SITE: ..............................................................................THIS SHEET
A10. LOCATIONS AND NAME OF ALL WETLANDS, LAKES AND WATERCOURSES ON AND ADJACENT TO THE SITE: .....THIS SHEET & ATTACHMENTS
Al 1. IDENTIFICATION OF ALL RECEIVING WATERS: ............... ......THIS SHEET
............................................................................................................
Al 2. IDENTIFICATION OF POTENTIAL DISCHARGES TO GROUND WATER: ............................................................................................... THIS SHEET
A13. 100 YEAR FLOODPLAINS, FLOODWAYS, AND FLOODWAY FRINGES: .................................................................THIS SHEET & ATTACHMENTS
Al 4. PRE -CONSTRUCTION AND POST CONSTRUCTION ESTIMATE OF PEAK DISCHARGE (10 YEAR EVENT): ..........THIS SHEET & ATTACHMENTS
Al 5. ADJACENT LAND USE, INCLUDING UPSTREAM WATERSHED: ........................................................................................................THIS SHEET
A16. LOCATIONS AND APPROXIMATE BOUNDARIES OF ALL DISTURBED AREAS: ................................................................. THIS SHEET & C-104
A17. IDENTIFICATION OF EXISTING VEGETATIVE COVER: ....................................................................................................................... THIS SHEET
A18. SOILS MAP INCLUDING SOIL DESCRIPTIONS AND LIMITATIONS: ......................................................................THIS SHEET & ATTACHMENTS
A19. LOCATIONS, SIZE AND DIMENSIONS OF PROPOSED -STORM WATER SYSTEMS: ......................................................................SHEET C-104
A20. PLANS FOR ANY OFF -SITE CONSTRUCTION ACTIVITIES ASSOCIATED WITH THIS PROJECT : .....................................................THIS SHEET
A21. LOCATIONS OF PROPOSED SOIL STOCKPILES AND/OR BORROW/DISPOSAL AREAS: ................................................. THIS SHEET & C-104
A22. EXISTING SITE TOPOGRAPHY AT AN INTERVAL APPROPRIATE TO INDICATE DRAINAGE PATTERNS: ......................................SHEET C-104
A23. PROPOSED FINAL TOPOGRAPHY AT AN INTERVAL APPROPRIATE TO INDICATE DRAINAGE PATTERNS: .................................SHEET C-104
B. STORMWATER POLLUTION PREVENTION PLAN: LOCATION
B1. DESCRIPTION OF POTENTIAL SOURCES ASSOCIATED WITH CONSTRUCTION ACTIVITIES: .................................................................THIS SHEET
B2. SEQUENCE DESCRIBING STORMWATER QUALITY MEASURE IMPLEMENTED RELATIVE TO LAND DISTURBING ACTIVITIES: ................THIS SHEET
B3. STABLE CONSTRUCTION ENTRANCE LOCATIONS AND SPECIFICATIONS: ..........................................................................................THIS SHEET
B4. SEDIMENT CONTROL MEASURES FOR SHEET FLOW AREAS: ..........................................................................................................THIS SHEET
B5. SEDIMENT CONTROL MEASURES FOR CONCENTRATED FLOW: ........................................................................................................THIS SHEET
B6. STORM SEWER INLET PROTECTION MEASURE LOCATION AND SPECIFICATION: ............................................................................... THIS SHEET
B7. RUNOFF CONTROL MEASURES: ....................................................................................................................................................... THIS SHEET
B8. STORMWATER OUTLET PROTECTION SPECIFICATIONS: ...................................................................................................................... THIS SHEET
B9. GRADE STABILIZATION STRUCTURE LOCATIONS AND SPECIFICATIONS: ........................................................................................... THIS SHEET
B10. LOCATION, DIMENSIONS, SPECIFICATION, AND CONSTRUCTION DETAILS OF EACH STORMWATER QUALTIY MEASURE: ................. THIS SHEET
B11. TEMPORARY SURFACE STABILIZATION METHODS APPROPRIATE FOR EACH SEASON: .................................................................... THIS SHEET
B12. PERMANENT SURFACE STABILIZATION SPECIFICATIONS: ............................................................................................................... THIS SHEET
B13. MATERIAL HANDLING AND SPILL PREVENTION: ............................................................................................................................. THIS SHEET
B14. MONITORING AND MAINTENANCE GUIDELINES FOR POLLUTION PREVENTION MEASURES: ...........................................................THIS SHEET
B15. EROSION & SEDIMENT CONTROL SPECIFICATIONS FOR INDIVIDUAL BUILDING LOTS:.................................................................THIS SHEET
C. POST CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN:
LOCATION
Cl. DESCRIPTION OF POLLUTANTS AND THEIR SOURCES ASSOCIATED WITH THE PROPOSED LAND USE: ........................................THIS SHEET
C2. SEQUENCE DESCRIBING STORMWATER QUALITY MEASURE IMPLEMENTATION: ...............................................................................THIS SHEET
C3. DESCRIPTION OF PROPOSED POST CONSTRUCTION STORMWATER QUALITY MEASURES: ............................................................... THIS SHEET
C4. LOCATION, DIMENSIONS, SPECIFICATIONS & CONSTRUCTION DETAILS OF EACH STORMWATER QUALTIY MEASURE: ...................THIS SHEET
C5. DESCRIPTION OF MAINTENANCE GUIDELINES FOR PROPOSED POST CONSTRUCTION WATER QUALITY MEASURES: ....................THIS SHEET
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A. CONSTRUCTION PLAN ELEMENTS
Al. PLAN INDEX SHOWING LOCATIONS OF REQUIRED ITEMS:
- This sheet.
A2. 11 BY 17-INCH PLAT SHOWING BUILDING LOT NUMBERS/BOUNDARIES AND ROAD LAYOUT/NAMES.:
- See attached reduded copy of SWP3.
A3. NARRATIVE DESCRIBING NATURE AND PURPOSE:
- Develop an assisted living memory care facility.
A4. VICINITY MAP SHOWING PROJECT LOCATION:
- See lower left hand corner of this sheet.
A5. LEGAL DESCRIPTION OF THE PROJECT SITE:
- The site is located in the NW 1/4 of Sec. 30, Township 18-N, Range 3 East;
- Approximate coordinates: Latitude = 39-deg 58' 42" N; Longitude =86-deg 14' 7" W.
A6. LOCATION OF ALL LOTS AND PROPOSED SITE IMPROVEMENTS:
- This is a single lot project which will consist of one primary structure, utility service tie-ins, construction
of a storm sewer system, detention basin and asphalt paving for the associated parking lots/drives.
AT HYDROLOGIC UNIT CODE (14 DIGIT):
- 05120201120070 - Little Eagle Branch- Woodruff Branch
A8. NOTATION OF ANY STATE OR FEDERAL WATER QUALITY PERMITS:
- IDEM Rule 5
A9. SPECIFIC POINTS WHERE STORM WATER DISCHARGE WILL LEAVE THE SITE.:
- Stormwater runoff will leave the site undetained via sheetflow to the north and east of the parking and
primary structure area. The remainder of the site will be collected via sheetflow and storm sewer system and
detained in the dentention basin on the southwest corner of the site prior to exiting the site via the outlet structure
and flowing north into the exisisting drainage ditch and off the site.
A10. LOCATIONS AND NAME OF ALL WETLANDS, LAKES AND WATERCOURSES ON AND ADJACENT TO THE SITE:
- No wetlands are located within the project boundaries per National Wetlands Inventory.
Al 1. IDENTIFICATION OF ALL RECEIVING WATERS:
- Little Eagle Branch - Woodruff Branch.
Al2. IDENTIFICATION OF POTENTIAL DISCHARGES TO GROUND WATER:
- There is no apparent potential for direct discharge to ground water via sinkholes or abandoned drywells.
The existing water well on site is to be abandoned and filled appropriately.
A13. 100 YEAR FLOODPLAINS, FLOODWAYS, AND FLOODWAY FRINGES:
- No portion of the property lies within the Special Flood Hazard Area, Zone 'A', as said tract plots
on the National Flood Insurance Program's Flood Insurance Rate Map for the Hamilton County,
Indiana, Community Panel No. 0205G, Map No. 18057CO205G dated 11/19/2014.
Al 4. PRE -CONSTRUCTION AND POST CONSTRUCTION ESTIMATE OF PEAK DISCHARGE (10 YEAR EVENT):
- Calculations by the Rational Method indicate a Pre -Construction Q(10) = 1.27-cfs and a
Post -Construction Q(10) = 1.20-cfs.
Al 5. ADJACENT LAND USE, INCLUDING UPSTREAM WATERSHED:
- All immediately adjacent properties are residential.
Al 6. LOCATIONS AND APPROXIMATE BOUNDARIES OF ALL DISTURBED AREAS:
- The construction limits of the project will consist of the entire property boundary.
Al 7. IDENTIFICATION OF EXISTING VEGETATIVE COVER:
- The previous site was a residential dwelling with a gravel drive and lawn area.
A18. SOILS MAP INCLUDING SOIL DESCRIPTIONS AND LIMITATIONS:
- According to the USDA's Soil Survey of Hamilton County Indiana, the following soils exist on -site:
SOILS DESCIPTIONS
Br Brookston Silty Clay Loam
CrA Crosby Silt Loam, 0 to 3 percent slopes
Mm132 Miami Silt Loam, 2 to 6 percent slopes, eroded
SOILS RATINGS Shallow Excavations Local Roads & Streets Small Commercial Bldqs.
Br Very limited Very limited Very limited
CrA Very limited Very limited Very limited
MmB2 Somewhat limited Very limited Somewhat limited
A19. LOCATIONS, SIZE AND DIMENSIONS OF PROPOSED -STORM WATER SYSTEMS:
- Refer to the grading and drainage sheet C-102 and SWP3 sheet C-104.
A20. PLANS FOR ANY OFF -SITE CONSTRUCTION ACTIVITIES ASSOCIATED WITH THIS PROJECT
- None.
A2 1. LOCATIONS OF PROPOSED SOIL STOCKPILES AND/OR BORROW/DISPOSAL AREAS:
- Proposed soil stockpile location shown on Sheet C-104 is a suggested location only.
A22. EXISTING SITE TOPOGRAPHY AT AN INTERVAL APPROPRIATE TO INDICATE DRAINAGE PATTERNS:
- See the SWP3 drawing, Sheet C-104, for existing contours.
A23. PROPOSED FINAL TOPOGRAPHY AT AN INTERVAL APPROPRIATE TO INDICATE DRAINAGE PATTERNS:
- See the SWP3 drawing, Sheet C-104, for proposed contours.
MAINTENANCE NOTES
SLIT FENCE MAINTENANCE REQUIREMENTS
1. INSPECT THE SILT FENCE PERIODICALLY AND AFTER EACH STORM EVENT.
2. IF FENCE FABRIC TEARS, STARTS TO DECOMPOSE, OR IN ANY WAY BECOMES INEFFECTIVE,
REPLACE THE AFFECTED PORTION IMMEDIATELY.
3. REMOVE DEPOSITED SEDIMENT WHEN IT REACHES HALF THE HEIGHT OF THE FENCE AT
ITS LOWEST POINT OR CAUSING THE FABRIC TO BULGE.
4. TAKE CARE TO AVOID UNDERMINING THE SILT FENCE DURING CLEAN OUT.
5. AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, REMOVE THE FENCE AND
SEDIMENT DEPOSITS, BRING THE DISTURBED AREA TO GRADE AND STABILIZE.
TEMPORARY SEDIMENT TRAP/BASIN MAINTENANCE REQUIREMENTS
1. INSPECT TEMPORARY SEDIMENT TRAPS AFTER EACH STORM EVENT AND IMMEDIATELY REPAIR
ANY EROSION AND PIPING HOLES.
2. REMOVE SEDIMENT WHEN IT HAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH.
3. REPLACE SPILLWAY GRAVEL FACING IF CLOGGED.
4. INSPECT VEGETATION AND RE -SEED IF NECESSARY.
5. CHECK THE SPILLWAY DEPTH PERIODICALLY TO INSURE A MINIMUM OF 1.5 FT. DEPTH FROM
THE LOWEST POINT OF THE SETTLED EMBANKMENT TO HIGHEST POINT OF THE SPILLWAY
CREST AND FILL ANY LOW AREA TO MAINTAIN DESIGN ELEVATION.
6. PROMPTLY REPLACE ANY DISPLACED RIPRAP BEING CAREFUL THAT NO STONES IN THE
SPILLWAY ARE ABOVE DESIGN GRADE.
7. AFTER ALL DISTURBED AREAS HAVE BEEN STABILIZED, REMOVE THE STRUCTURE AND
SEDIMENT. SMOOTH THE SITE TO BLEND WITH ADJOINING AREAS, AND STABILIZE.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE MAINTENANCE REQUIREMENTS
1. INSPECT ENTRANCE PAD AND SEDIMENT DISPOSAL AREA WEEKLY AND AFTER STORM EVENTS
OR HEAVY USE.
2. RESHAPE PAD AS NEEDED FOR DRAINAGE AND RUNOFF CONTROL.
3. TOPDRESS WITH CLEAN STONE AS NEEDED.
4. IMMEDIATELY REMOVE MUD AND SEDIMENT TRACKED OR WASHED ONTO PUBLIC ROADS BY
BRUSHING OR SWEEPING. BULK CLEARING OF ACCUMULATED SEDIMENT SHALL NOT
INCLUDE FLUSHING WITH WATER.
5. REPAIR ANY BROKEN ROAD PAVEMENT IMMEDIATELY.
RIPRAP MAINTENANCE REQUIREMENTS
6. INSPECT PERIODICALLY FOR DISPLACED ROCK MATERIAL, SLUMPING, AND EROSION
AT EDGES ESPECIALLY DOWN STREAM OR DOWN SLOPE.
B. STORMWATER POLLUTION PREVENTION PLAN - CONSTRUCTION COMPONENT
B1. DESCRIPTION OF POTENTIAL POLLUTANT SOURCES ASSOCIATED WITH CONSTRUCTION ACTIVITIES.
- Fuel and lubricants from machinery, waste from concrete truck washout, sanitary waste
from latrines, construction waste from building materials, domestice garbage, sedimentation
from storm water runoff and vehicle tracking, windborne dust, and fertilizers from seeding operations.
B2. SEQUENCE DESCRIBING STORMWATER QUALITY MEASURE IMPLEMENTED RELATIVE TO LAND
DISTURBING ACTIVITIES:
CONSTRUCTION SEQUENCE FOR EROSION & SEDIMENT CONTROL
CONSTRUCTION PHASE
CONSTRUCTION SCHEDULE CONSIDERATIONS
(SPECIFIC ACTIVITIES OR EROSION CONTROL PRACTICES)
PRE -CONSTRUCTION ACTIONS
BEFORE CONSTRUCTION, EVALUATE, MARK, AND PROTECT TREES
AND VEGETATED FILTER STRIPS TO BE UTILIZED, ESPECIALLY IN
(EVALUATION/PROTECTION OF IMPORTANT SITE
PERIMETER AREAS.
CHARACTERISTICS)
INSTALL PERIMETER BMPS *
INSTALL GRAVEL ENTRANCE/EXIT; IDENTIFY & PROTECT
VEGETATIVE FILTER STRIPS AROUND THE PERIMETER OF THE
(CONSTRUCTION EXITS, FILTER STRIPS, SILT FENCE,
SITE; INSTALL SILT FENCE INSIDE THE PERIMETER OF THE
DROP INLET PROTECTION, EQUIPMENT PARKING AREAS)
FILTER STRIP.
PREPARE SITE FOR CONSTRUCTION *
INFORM ALL CONTRACTORS OF AREAS TO BE PROTECTED.
(SOIL STOCKPILES AND TEMPORARY SEDIMENT BASIN)
IF STOCKPILING, IMMEDIATELY AFTER TEMPORARY SEED
AND INSTALL SEDIMENT BARRIERS AROUND THE PERIMETER.
CONSTRUCT TEMPORARY SEDIMENT TRAP PRIOR TO ANY SITE
WORK.
RUNOFF CONTROL *
INSTALL DIVERSION DITCHES AND STRAW BALE/SILT FENCE PIT
(DIVERSIONS, DITCHES,
UPON COMMENCEMENT OF CONSTRUCTION. STABILIZE
OUTLET PROTECTION AND STRAW BALE/SILT FENCE PIT)
DIVERSION DITCHES.
RUNOFF CONVEYANCE SYSTEMS *
STABILIZE SWALES IMMEDIATELY AFTER CONSTRUCTION.
(STABILIZE SWALES, STORM DRAINS, INLET AND
INSTALL INLET AND OUTLET PROTECTION IMMEDIATELY AFTER
OUTLET PROTECTION, CHANNELS)
CONSTRUCTION OF STORM SEWER STRUCTURES.
LAND CLEARING AND GRADING *
BEGIN MAJOR CLEARING AND GRADING AFTER INSTALLING
(CUTTING/FILLING, GRADING DRAINS, SEDIMENT TRAPS,
THE KEY SEDIMENT AND RUNOFF CONTOL MEASURES.
BARRIERS, DIVERSIONS, SURFACE ROUGHENING)
CLEAR BORROW AND DISPOSAL AREAS AS NEEDED. INSTALL
ADDITIONAL CONTROL MEASURES AS GRADING PROGRESSES.
SURFACE STABILIZATION *
APPLY TEMPORARY OR PERMANENT STABILIZATION
(TEMPORARY AND PERMANENT SEEDING, MULCHING,
MEASURES IMMEDIATELY ON ALL DISTURBED AREAS
SODDING, RIP -RAP)
WHERE WORK IS DELAYED OR COMPLETED.
BUILDING CONSTRUCTION *
INSTALL NECESSARY EROSION AND SEDIMENT CONTROL
(BUILDING, UTILITIES, PAVING)
PRACTICES AS WORK TAKES PLACE.
LANDSCAPING AND FINAL STABILIZATION *
STABILIZE ALL OPEN AREAS INCLUDING BORROW AND SPOIL
(TOPSOIL, TREES, AND SHRUBS, PERMANENT SEEDING,
AREAS. REMOVE TEMPORARY CONTROL MEASURES AND
MULCHING, SODDING, RIP -RAP)
STABILIZE. REMOVE EXISISTING DRIVE.
*MAINTENANCE--(1)INSPECT PRACTICES AT LEAST ONCE A WEEK, & (2) MAKE REPAIRS IMMEDIATELY AFTER PERIODS OF RAINFALL.
C. STORMWATER POLLUTION PREVENTION PLAN - POST CONSTRUCTION COMPONENT
Cl. DESCRIPTION OF POLLUTANTS AND THEIR SOURCES ASSOCIATED W/ THE PROPOSED LAND USE:
- Oil, grease, antifreeze, brake fluid, brake dust, rubber fragments, gasoline, diesel fuel, and
other hydrocarbons, and metals from vehicular sources.
- Grit (sediment) from wearing of the road surface and falling off vehicular sources.
- Trash, bacteria and biological agents in trash, from littering or improper disposal or storage.
- Pesticides, herbicides, and fertilizers from lawn/landscaping maintenance applications.
- Elevated receiving water temperatures from stormwater runoff contact with impervious surfaces.
C2. SEQUENCE DESCRIBING STORMWATER QUALITY MEASURE IMPLEMENTATION:
- Site monitoring for trash, debris, and deposited pollutants shall be a daily routine.
- The use of vegetative filters and detention basins are existing and will remain a permanent
aspect of the site.
- Absorption materials used to clean up hydrocarbon puddles shall be approved by the EPA.
- Disposal of all trash, debris, and pollutants shall be in a manner approved by their
their reppective governmental agencies.
C3. DESCRIPTION OF PROPOSED POST CONSTRUCTION STORMWATER QUALITY MEASURES:
- The Owner shall monitor the pavement for pollutants deposited from vehicular sources.
The Owner shall use approved absorbtion materials to clean up such hydrocarbon pollutants.
- The Owner shall periodically monitor the site for trash, debris, and grit deposited on site.
The Owner shall pick up debris and sweep the parking lot and dispose of in an approved manner.
- The Owner shall minimize lawn/landscaping chemical applications.
- The vegetated filter strips and detention basins will be utilized to filter pollutants, reduce runoff
velocities, and help lower the temperature of the runoff before it reaches the receiving water.
C4. LOCATION, DIMENSIONS, SPECIFICATIONS & CONSTRUCTION DETAILS OF EACH STORMWATER QUALTIY MEASURE:
- Refer to the Sheet C-104 for locations of the respective control measures. Dimensions,
specifications, and details of the measures are depicted in the Indiana Storm Water Quality
Manual and Sheet C-106. Other practices which may be implemented shall be utilized and
installed in accordance with the manufacturer's instructions.
C5. DESCRIPTION OF MAINTENANCE GUIDELINES FOR PROPOSED POST CONSTRUCTION WATER QUALITY MEASURES:
- Site monitoring for trash, debris, and deposited pollutants shall be a daily routine and shall be the
responsibility of the Owner.
- The use of vegetated filter strips are existing and will remain a permanent aspect of the site.
The Owner shall monitor these areas for trapped pollutants and erosion.
- The Owner shall be responsible for all maintenance and cost associated with all BMPs on site.
B3. STABLE CONSTRUCTION ENTRANCE LOCATIONS AND SPECIFICATIONS:
- A temporary construction drive and equipment staging area shall
be installed at the commencement of construction activities in accordance with the Indiana
Storm Water Quality Manual. Refer to Sheet C-104 for suggested locations.
B4. SEDIMENT CONTROL MEASURES FOR SHEET FLOW AREAS:
- Existing vegetated areas beyond the grading limits shall remain undisturbed.
- Silt fence shall be used below all potential sediment producing areas and trenched 6" in place.
Refer to the SWP3 Sheet C-104 for suggested locations.
B5. SEDIMENT CONTROL MEASURES FOR CONCENTRATED FLOW AREAS:
- Erosion Control Blankets shall be installed in all swales and steep slopes to aid in vegetation establishment.
- The proposed sediment traps is shown on the SWP3 sheet C-104, and detailed on sheet C-105.
B6. STORM SEWER INLET PROTECTION MEASURE LOCATION AND SPECIFICATIONS:
- Area drains, & FES's shall be protected with inlet protection immediately upon installation. Refer to SWP3 sheet C-104.
B7. RUNOFF CONTROL MEASURES:
- The proposed sediment traps is shown on the SWP3 sheet C-104, and detailed on C-106.
- The contractor shall incorporate permanent diversion ditches and place fill in a manner that directs runoff to the sediment traps.
B8. STORM WATER OUTLET PROTECTION SPECIFICATIONS:
- Energy dissipators/Outlet scour protection shall immediately be installed on all on -site pipe discharges.
B9. GRADE STABILIZATION STRUCTURE LOCATIONS AND SPECIFICATIONS:
- Erosion control blankets on all slopes as shown on the SWP3 sheet C-104 and detailed on C-106.
B10. LOCATION, DIMENSIONS, SPECIFICATION AND CONSTRUCTION DETAILS OF EACH STORMWATER QUALITY MEASURE:
- Refer to the SWP3 drawings for locations of the respective control measures. See Sheet C-107 for details.
Other practices which may be implemented shall be utilized and installed in accordance with the
manufacturer's instructions. City of Carmel's Standards and Specifications.
B11. TEMPORARY SURFACE STABILIZATION METHODS APPROPRIATE FOR EACH SEASON:
- The Contractor shall seed and mulch all disturbed areas when construction activities are expected to
cease for a period of more than 15 days. Straw/hay mulch shall be applied at a rate of 2 tons/acre and shall be
anchored with a mulch anchoring tool or farm disk. Seeding requirements shall be in accordance with Table
1, located in Chapter 7, page 32 of the Indiana Storm Water Quality Manual, which is summarized below.
TAhIP 1 _ Tpmnnrary Sppriinn Snprifiratinnc
Seed Species *
Rate/acre
Planting depth
Optimum dates **
Wheet or Rye
150 lbs.
1 to 1-1/2 in.
9/15 to 10/30
Spring Oats
100 lbs.
1 in.
3/1 to 4/15
Annual Ryegrass
40 lbs.
1/4 in.
3/1 to 5/1
8/1 to 9/1
German Millet
40 lbs.
Ito 2 in.
5/1 to 6/1
Sudangrass
35 lbs.
1 to 2 in.
5/1 to 7/30
Buckwheat
60 lbs.
1 to 2 in.
4/15 to 6/1
Corn (broadcast)
300 lbs.
1 to 2 in.
5/11 to 8/10
Sorghum
35 lbs.
1 to 2 in.
5/1 to 7/15
* Perennial species may be used as a temporary cover, especially it the areas to be seeded will remain idle for more than 1 year.
** Seeding done outside the optimum seeding dates increases the chances of seeding failure. Dates may be extended or
shortened based on the location of the project site within the state.
- The seed bed shall be prepared by applying 400-600 lbs per acre of 12-12-12 fertilizer and
working 2-4 inches into the soil and mulching material applied at the rate of 2 tons per acre.
- Dormant & Frost Seeding should be utilized for seeding when temperatures are too low for
germination to occur.
B12. PERMANENT SURFACE STABILIZATION SPECIFICATIONS:
- The Contractor shall fertilize, seed and mulch all disturbed areas when final grading and
land disturbing operations are complete. Seeding requirements shall be in accordance with
Table 1, located in Chapter 7, pages 38-39 of the Indiana Storm Water Quality Manual, shown to the right.
- The seed bed shall be prepared by applying 400-600 lbs per acre of 12-12-12 fertilizer and working
2-4 inches into the soil and apply straw/hay mulch at the rate of 2 tons per acre.
- Optimum dates for permanent seeding are March 1 - May 10 and August 10 - September 30.
- Temporary seeding should be considered between May 10 and August 10.
- Dormant & Frost Seeding should be utilized when temperatures are too low for germination
to occur, October 1 - May 9.
B13. MATERIAL HANDLING AND SPILL PREVENTION:
- The Contractor shall notify the Indiana Department of Environment Management (1.888.233.7745)
when spills occur and threaten water quality due to storm water runoff.
- All materials used on -site shall be stored in an orderly manner and approved containers. Materials
shall be kept in their original packaging with the manufacturer's labels until ready for installation.
- All materials shall be used, installed and disposed of in accordance with its manufacturer's instructions
and as required by governing agencies.
- The Contractor shall utilize re -sealable containers when storing unused materials susceptible to spillage.
- The Contractor shall keep manufacturer's labels and Material Safety Data Sheets (MSDS) on site.
- The Contractor shall monitor equipment and their parking areas for leaks.
- Spill Contact Information: IF AN EMERGENCY: 911
I.D.E.M. 24 HOUR SPILL HOTLINE: 1-888-233-7745
B14. MONITORING AND MAINTENANCE GUIDELINES FOR POLLUTION PREVENTION MEASURES:
- All stormwater quality measures shall be inspected and maintained in accordance with its
respective manufacturer's recommendations and the Indiana Storm Water Quality Manual.
- A self -monitoring program that includes the following must be implemented:
- A trained individual shall perform a written evaluation of the project site:
* By the end of the next business day following each 1/2-inch storm event; and
* at a minimum of one time per week.
- The evaluation must address:
* The maintenance of existing stormwater quality measures to ensure they are functioning properly; and
* Identify additional measures necessary to remain in compliance with all applicable statutes and rules.
- Written evaluation reports must include:
* The name of the individual performing the evaluation;
* The date of the evaluation;
* Problems identified at the project site; and
* Details of corrective actions recommended and completed.
B15. EROSION & SEDIMENT CONTROL SPECIFICATIONS FOR INDIVIDUAL BUILDING LOTS:
- Not applicable to this project.
9' SB M
Exhibit 3.12-C. Permanent Seeding Recommendations.
This table provides several seeding options. Additional seed species and mixtures are
available commercially. When selecting a mixture, consider site conditions, includ-
ing soil properties (e.g., soil pH and drainage), slope aspect and the tolerance of
each species to shade and droughtiness.
Seed species and mixtures
Rate per acre
Optimum soil pH
OPEN AND DISTURBED AREAS (REMAINING IDLE MORE THAN 1 YR.)
1. Perennial ryegrass
35 to 50 lbs.
5.6 to 7.0
+ white or ladino clover*
I to 2 lbs.
2. Kentucky bluegrass
20 tbs.
5.5 to 7.5
+ smooth bromegrass
10 tbs.
+ switchgrass
3 lbs.
+ timothy
4 lb&
+ perennial ryegrass
10 lbs.
+ white or ladino clover*
1 to 21bs.
3. Perennial ryegrass
15 to 30 tbs.
5.6 to 7.0
+ tall fescue**
15 to 30 tbs.
4. Tall fescue**
35 to 50 tbs.
5.5 to 7.5
+ ladino or white clover*
1 to 2 lbs.
STEEP BANKS AND CUTS, LOW MAINTENANCE AREAS (NOT MOWED)
1. Smooth bromegrass
25 to 35 lbs.
5.5 to 7.5
+ red clover*
10 to 20 lbs.
2. Tall fescue**
35 to 50 tbs.
5.5 to 7.5
+ white or Ladino clover*
1 to 2 tbs.
3. Tall fescue**
35 to 50 lbs.
5.5 to 7.5
+ red clover*
10 to 20 lbs.
(Recommended north of US 40)
4. Orchardgrass
20 to 30 lbs.
5.6 to 7.0
+ red clover*
10 to 20 tbs.
+ ladino clover*
1 to 2 lbs.
5. Crownvetch*
10 to 12 lbs.
5.6 to 7.0
+ tall fescue**
20 to 30 tbs.
(Recommended south of US 40)
LAWNS AND HIGH MAINTENANCE AREAS
1. Bluegrass
105 to 140 lbs.
5.5 to 7.0
2. Perennial ryegrass (turf -type)
45 to 60 tbs.
5.6 to 7.0
+bluegrass
70 to 90 lbs.
3. Tall fescue (turf -type)**
130 to 170 lbs.
5.6 to 7.5
+bluegrass
20 to 30 tbs.
CHANNELS AND AREAS OF CONCENTRATED FLOW
1. Perennial ryegrass
100 to 150 lbs.
5.6 to 7.0
+white or ladino clover*
1 to 2 tbs.
2. Kentucky bluegrass
20 lbs.
5.5 to 7.5
+ smooth bromegrass
10 lbs.
+ switchgrass
3 lbs.
+ timothy
4 lbs.
+perennial ryegrass
10 lbs.
+ white or ladino clover*
1 to 2 tbs.
3. Tall fescue**
100 to 150 lbs.
5.5 to 7.5
+ ladino or white clover*
1 to 2 tbs.
4. Tall fescue**
100 to 150 lbs.
5.5 to 7.5
+ Perennial ryegrass
15 to 20 tbs.
+ Kentucky bluegrass
15 to 20 tbs.
* For best results: (a) legume seed should be inoculated; (b) seeding mixtures containing legumes should pref-
erably be spring -seeded, although the grass may be fall -seeded and the legume frosWeeded (Practice 3.13); and
(c) if legumes are fall -seeded do so in early fall.
** Tall fmcue provides little cover for, and may be toxic to, some species of wildlife. The IDNR recognizes
the need for additional research on alternatives to tall fescue, such as buffalograss, orchard -grass, smooth brome-
grass, and switch -grass. This research, in conjunction with demonstration oreas, should focus on erosion control
characteristics, wildlife toxicity, turf durability, and drought resistance.
NOTE. An oat or wheat companion or nurse crop may be used with any of the above
permanent seeding mixtures. If so, it is best to seed during the fall seeding period, es-
pecially after Sept. 15, and at the following rates., sprint oats-114 to 314 bu./acre;
wheat -no more than 112 bu./acre.
Custom Soil Resource Report
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402 EAST 1 3TH STREET
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PROJECT No.: 19-3957
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