Project # Approval Date Comments

Add. Imp. Area

(Acres)

Diff. Runoff

(CFS)

Qp

Provided

(Y/N)

Dist. Area (Acres)

Treated

Area / BMP

(Acres)

WQv

Provided

(Y/N)

CPv

Provided

(Y/N)

BMP Provided

20MSD-00234 8/25/20 New Splash Pad/Playground

0.27 0.49 N 0.66 N N

Y N

Y N

N

N

Project # New Swimming Pool

T.B.D. New Walkways

23MSD-00265

26MSD-00157

0.00 Not Required *

1.53 3.631.59 2.16 Bio-Basins **

0.25 1.110.00 Amended Soils0.56

Site Area:

Cumulative Increase in Runoff Since 2006:

Cumulative Disturbance Since Since 2006:

Cumulative Area Treated Since 2006:

Notes:

* Total cumulative site disturbance was below 1 acre, therefore water quality not required.

** BMP's account for previous project disturbances.

Stormwater Management Tracking Table

1.98

5.40

2.72

6. SCHOOL DISTRICT:

7. FIRE DISTRICT:

ATT

MISSOURI-AMERICAN WATER CO.

1. SEWER DISTRICT:

2. ELECTRIC:

3. GAS:

4. PHONE:

5. WATER:

M.S.D.

AMEREN

SPIRE

FERGUSON-FLORISSANT

FLORISSANT VALLEY

8. WATER SHED: COLDWATER CREEK

FEMA MAP # 29189C0061 K, EFFECTIVE DATE FEBRUARY 4. 2015

SUBJECT PROPERTY NOT WITHIN ANY FLOOD ZONES

SITE LOCATION: CITY OF FLORISSANT - KOCH PARK

INTERSECTION OF HOWDERSHELL ROAD AND CHARBONIER ROAD

PROJECT AREA: 298,304 S.F. 6.85 ACRES

PROJECT DRAINAGE AREA: 298,304 S.F. 6.85 ACRES

SOIL TYPES: 100% C

STORMWATER MANAGEMENT FUTURE NOTE:

PROJECT DISTURBANCE: 48,342 S.F. 1.11 ACRES

PROJECT RUNOFF DIFFERENTIAL = 0.00 CFS

ANY FUTURE LAND DISTURBANCE AND/OR INCREASE IN IMPERVIOUS AREA ON

THIS SITE MAY REQUIRE ADDITIONAL STORM WATER MANAGEMENT PER MSD

REGULATIONS IN PLACE AT THAT TIME (INCLUDING TOTAL LAND DISTURBANCE

AND/OR IMPERVIOUSNESS ADDED ON THIS PLAN.)

PROPOSED:

PROPOSED IMPERVIOUS AREAS:

PROJECT AREA PAVEMENT: 11,100 SF = 0.25 AC.

PROPOSED IMPERVIOUS: 0.25 AC. X 3.54 = 0.89 CFS

PROPOSED PERVIOUS: 0.86 AC. X 1.70 = 1.46 CFS

TOTAL: 2.35 CFS

EX. = 2.35 CFS

PROP. = 2.35 CFS

2.35 CFS - 2.35 CFS = 0.00 CFS (NO INCREASE IN RUNOFF)

TOTAL DIFFERENTIAL RUNOFF (1.98 CFS), LESS THAN 2.0 CFS

THEREFORE NO DETENTION REQUIRED

TOTAL DISTURBANCE (5.40 AC.) IS GREATER THAN 1 ACRE

THEREFORE WATER QUALITY TREATMENT IS REQUIRED

DIFFERENTIAL RUNOFF CALCS:

PER APPROVED THIS PLAN

EXISTING:

EXISTING IMPERVIOUS AREAS:

PAVEMENT 10,787 SF = 0.25 AC.

EXISTING IMPERVIOUS: 0.25 AC. X 3.54 = 0.89 CFS

EXISTING PERVIOUS: 0.86 AC. X 1.70 = 1.46 CFS

TOTAL: 2.35 CFS

ELEVATIONS BASED ON NAVD88 (SLC2011a) ELEV.=577.03 FTUS STANDARD

DNR ALUMINUM DISK STAMPED SL-119 SITUATED IN A GRASSY AREA WEST

OF THE SIDEWALK NEAR THE NORTHERN END OF THE RIGHT TURN LANE

FROM SOUTHEAST BOUND CHARBONIER ROAD ONTO SOUTHWEST BOUND

HOWDERSHELL ROAD AND IN THE FAR EASTERN PART OF THE CITY OF

FLORISSANT ATHLETIC FIELDS ADDRESSED AS #2300 CHARBONIER ROAD,

ROUGHLY 28 FEET SOUTHEAST OF A UTILITY POLE, 6 FEET WEST OF THE

BACK OF CURB OF THE RIGHT TURN LANE, AND 11 FEET NORTH OF A

MANHOLE COVER. <NGS PID="AA8638".DESIGNATION="SL 119">

TOLL FREE

1-800-344-7483

MISSOURI ONE-CALL SYSTEM INC.

Call Before you DIG

NORTH

CONTRACTOR'S INSURANCE (OFFSITE):

Prior to obtaining a construction permit from the Metropolitan St. Louis Sewer District, the contractor shall be required to provide the District with a copy of an executed Certificate of Insurance indicating that the permittee has obtained and will continue to carry commercial general liability and comprehensive auto liability insurance. The requirements and limits shall be as stated in the Rules and Regulations and Engineering Design Requirements for Sanitary and Stormwater Drainage Facilities, February

2006, Section 10.090.

terraspec

Hawkinson Associates, LLC 323 Fox Briar Lane Ballwin, MO 63021

C2

SITE GRADING / SWPP PLAN

C1 EXISTING CONDITIONS

SITE LAYOUT PLAN

C0 COVER SHEET

C4-6 SWPP DETAILS

DA1 EXISTING/PROPOSED

D1 SITE DETAILS

S1-S3 TECHNICAL SPECIFICATIONS

DRAINAGE AREA MAP

Koch Park

C3

UNDERDRAIN SYSTEM / IRRIGATION PLANC8

ST. LOUIS CO. LOCATOR NO: O7L620217

WUNNENBURG'S: Q6-8

ADDRESS: 2302 Charbonier Road

Charbonier Rd @ Howdershell Rd

LOCATION MAP

(NOT TO SCALE)

SUBJECT

SITE

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C7 WATER QUALITY PLAN

ALT. #1 - Field Irrigation Systems

ALT. #2 - 2" Sand Base under Sod

ALT. #3 - Field Underdrain Systems

C1A DEMOLITION PLAN

GENERAL NOTES:

UNDERGROUND UTILITIES HAVE BEEN PLOTTED FROM AVAILABLE

INFORMATION AND THEREFORE, THEIR LOCATIONS MUST BE CONSIDERED

APPROXIMATE ONLY. THE VERIFICATION OF THE LOCATION OF UNDERGROUND

UTILITIES, EITHER SHOWN OR NOT SHOWN ON THESE PLANS, SHALL BE THE

RESPONSIBILITY OF THE CONTRACTOR AND SHALL BE LOCATED PRIOR TO

ANY GRADING OR CONSTRUCTION OF IMPROVEMENTS.

CONSTRUCTION AND MATERIALS USED SHALL CONFORM TO MOST CURRENT

METROPOLITAN ST. LOUIS SEWER DISTRICT "STANDARD CONSTRUCTION

SPECIFICATIONS FOR SEWER AND DRAINAGE FACILITIES" AND LOCAL

GOVERNING AUTHORITIES.

ALL CONSTRUCTION SHALL BE PER MOST CURRENT DETAILS LOCATED IN THE

ST. LOUIS COUNTY DESIGN CRITERIA MANUAL AND/OR THE SEDIMENT AND

EROSION CONTROL MANUAL.

SIDEWALKS AND CURB RAMPS SHALL BE CONSTRUCTED TO ADA STANDARDS

AND SPECIFICATIONS.

ALL STORM WATER SHALL BE DISCHARGED AT AN ADEQUATE NATURAL

DISCHARGE POINT. SINKHOLES ARE NOT ADEQUATE NATURAL DISCHARGE

POINTS.

EXISTING ABOVE & BELOW GROUND UTILITIES TO BE PROTECTED AND USED IN

PLACE, UNLESS OTHERWISE SPECIFIED.

MANHOLES AND INLET TOPS BUILT WITHOUT ELEVATIONS FURNISHED BY THE

DESIGNER WILL BE THE RESPONSIBILITY OF THE CONTRACTOR.

EXISTING UTILITIES AND/OR STRUCTURES AFFECTED BY CONSTRUCTION,

EITHER SHOWN OR NOT SHOWN ON THE PLANS, SHALL BE ADJUSTED TO

GRADE

STORM SEWERS SHALL BE R.C.P. (REINFORCED CONCRETE PIPE) A.S.T.M. C-76,

CLASS III MINIMUM, UNLESS OTHERWISE SPECIFIED.

ALL P.V.C. SEWER PIPE SHALL BE A.S.T.M. D-3034, S.D.R.-35.

TRENCH SUPPORT TO BE TO APPLICABLE SPECIFICATIONS IN ORDER FOR

SAFE PLACEMENT OF PIPES. IT IS THE SEWER CONTRACTOR'S

RESPONSIBILITY TO INSURE SAFETY OF THE SEWER CONSTRUCTION ON THE

PROJECT.

CONTRACTOR TO INSTALL STORM SEWERS, SANITARY SEWERS, WATER LINES,

METERS, METER BOXES, AND VALVES AS REQUIRED AND IN ACCORDANCE

WITH THE LOCAL UTILITIES AND GOVERNING AUTHORITIES.

LOCATION AND ELEVATION OF EXISTING INLETS, MANHOLES AND PIPES TO BE

VERIFIED BY CONTRACTOR PRIOR TO CONSTRUCTION.

ALL FILLS PLACED UNDER PROPOSED STORM SEWER LINES, SANITARY SEWER

LINES, BUILDINGS AND PAVED AREAS, INCLUDING TRENCH BACKFILLS WITHIN

AND OFF ROAD RIGHT-OF-WAY, SHALL BE COMPACTED TO 90% OF MAXIMUM

DENSITY AS DETERMINED BY THE "MODIFIED AASHTO T-180 COMPACTION

TEST" (ASTM D-1557) FOR THE ENTIRE DEPTH OF THE FILL. COMPACTED

GRANULAR BACKFILL IS REQUIRED IN ALL TRENCH EXCAVATION WITHIN THE

STREET RIGHT-OF-WAY AND UNDER ALL PAVED AREAS. ALL TESTS SHALL BE

PERFORMED UNDER THE DIRECTION OF AND VERIFIED BY A SOILS ENGINEER

CONCURRENT WITH GRADING AND BACKFILLING OPERATIONS.

NEW CONTOURS ARE SHOWN TO FINISHED TOPSOIL AND FINISHED PAVEMENT

GRADES. CONTRACTOR SHALL GRADE PAVEMENT AND BUILDING PAD AREAS

TO SUBGRADE.

NEW GRADES SHALL BE WITHIN 0.1 FEET, MORE OR LESS, OF THOSE SHOWN

ON THE GRADING PLAN.

ALL EXCAVATIONS, GRADING OR FILLING SHALL HAVE A FINISHED GRADE NOT

TO EXCEED A 3:1 SLOPE (33%), UNLESS SUPPORTED BY A GEOTECHNICAL

REPORT THAT HAS BEEN ACCEPTED AND APPROVED.

CONTRACTOR SHALL GRADE AND CONSTRUCT IMPROVEMENTS TO PROVIDE

POSITIVE DRAINAGE TO STORM STRUCTURES, SWALES OR OFF SITE.

PONDING OF STORM WATER WILL NOT BE PERMITTED DURING OR AFTER

CONSTRUCTION.

THE CONTRACTOR SHALL NOTIFY THE DESIGN PROFESSIONAL IMMEDIATELY

CONCERNING ANY DISCREPANCIES IN THE PLANS.

ALL TRASH AND DEBRIS ON SITE, EITHER EXISTING OR FROM CONSTRUCTION,

MUST BE REMOVED AND PROPERLY DISPOSED OF OFF SITE.

DEBRIS AND FOUNDATION MATERIAL FROM ANY EXISTING ON SITE BUILDING

OR STRUCTURE WHICH IS SCHEDULED TO BE RAZED FOR THIS DEVELOPMENT

MUST BE PROPERLY BE DISPOSED OF OFF SITE.

A LEVEL AREA OF 60" X 60" (FRONT APPROACH) OR 48" X 60" (SIDE APPROACH)

IS REQUIRED OUTSIDE OF THE ENTRANCE DOORS FOR WHEELCHAIR

MANEUVERABILITY. (IF APPLICABLE)

INTERIM STORM WATER DRAINAGE CONTROL IN THE FORM OF SILTATION

CONTROL MEASURES ARE REQUIRED.

THE CONTRACTOR IS REQUIRED TO PROVIDE ADEQUATE STORM WATER

SYSTEMS IN ACCORDANCE WITH ALL GOVERNING AUTHORITIES, AND/OR M.S.D.

STANDARDS.

ANY DISTURBED OFFSITE PROPERTY (IE. BUSHES, FENCES, MAILBOXES, ETC.)

SHALL BE REPLACED, IN KIND, AT THE CONTRACTOR'S EXPENSE.

ALL SEDIMENT SHALL BE WASHED FROM ALL VEHICLES AT WASHDOWN

STATION PRIOR TO LEAVING SITE. NO TRACKING OF SEDIMENT ONTO ANY

ROADS SHALL BE ALLOWED.

SILTATION CONTROL NOTES:

IF CUT & FILL OPERATIONS OCCUR DURING A SEASON NOT FAVORABLE FOR

IMMEDIATE ESTABLISHMENT OF A PERMANENT GROUND COVER, A

FAST-GERMINATING ANNUAL SUCH AS RYE GRASSES OR SUDAN GRASSES

SHALL BE UTILIZED TO RETARD EROSION.

EROSION AND SILTATION CONTROL SHALL BE INSTALLED PRIOR TO ANY

GRADING AND BE MAINTAINED THROUGHOUT THE PROJECT UNTIL

ACCEPTANCE OF THE WORK BY THE OWNER AND/OR CONTROLLING

REGULATORY AGENCY AND ADEQUATE VEGETATIVE GROWTH INSURES NO

FURTHER EROSION OF THE SOIL.

TEMPORARY SILTATION CONTROL MEASURES (STRUCTURAL) SHALL BE

MAINTAINED UNTIL VEGETATIVE COVER IS ESTABLISHED AT A SUFFICIENT

DENSITY TO PROVIDE EROSION CONTROL ON THE SITE.

WHERE NATURAL VEGETATION IS REMOVED DURING GRADING, VEGETATION

SHALL BE REESTABLISHED IN SUCH A DENSITY AS TO PREVENT EROSION.

WHEN CLEARING AND/OR GRADING OPERATIONS ARE COMPLETED OR

SUSPENDED FOR MORE THAN 30 DAYS, ALL NECESSARY PRECAUTIONS SHALL

BE TAKEN TO RETAIN SOIL MATERIALS ON SITE. PROTECTIVE MEASURES MAY

BE REQUIRED BY THE DIRECTOR OF PUBLIC WORKS / CITY ENGINEER SUCH AS

PERMANENT SEEDING, PERIODIC WETTING, MULCHING, OR OTHER SUITABLE

MEANS.

STORM WATER PIPES, OUTLETS AND CHANNELS SHALL BE PROTECTED BY

SILT BARRIERS AND KEPT FREE OF WASTE AND SILT AT ALL TIMES PRIOR TO

FINAL SURFACE STABILIZATION AND/OR PAVING.

SILTATION FENCES SHALL BE INSPECTED PERIODICALLY FOR DAMAGE AND

FOR THE AMOUNT OF SEDIMENT WHICH HAS ACCUMULATED. REMOVAL OF

SEDIMENT WILL BE REQUIRED WHEN IT REACHES 1/2 THE HEIGHT OF THE

SILTATION FENCE.

NO EXCAVATION SHALL BE MADE SO CLOSE TO THE PROPERTY LINE AS TO

ENDANGER ANY ADJOINING PROPERTY OF ANY PUBLIC OR PRIVATE STREET

WITHOUT SUPPORTING AND PROTECTING SUCH PUBLIC OR PRIVATE STREET

OR PROPERTY FROM SETTLING, CRACKING OR OTHER DAMAGE.

PROVIDE ADEQUATE OFF-STREET PARKING FOR CONSTRUCTION EMPLOYEES.

PARKING ON NON-SURFACED AREAS SHALL BE PROHIBITED IN ORDER TO

ELIMINATE THE CONDITION WHEREBY MUD FROM CONSTRUCTION AND

EMPLOYEE VEHICLES IS TRACKED ONTO THE PAVEMENT CAUSING

HAZARDOUS ROADWAY AND DRIVING CONDITIONS.

THE STREETS SURROUNDING THIS DEVELOPMENT AND ANY STREET USED

FOR CONSTRUCTION ACCESS THERETO SHALL BE CLEANED THROUGHOUT

THE DAY.

SOFT SOILS IN THE BOTTOM OF BANKS OF ANY EXISTING OR FORMER POND

SITES OR TRIBUTARIES OR ANY SEDIMENT BASINS OR TRAPS SHOULD BE

REMOVED, SPREAD OUT AND PERMITTED TO DRY SUFFICIENTLY TO BE USED

AS FILL. NONE OF THIS MATERIAL SHOULD BE PLACED IN PROPOSED PUBLIC

RIGHT-OF-WAY LOCATIONS OR IN ANY STORM SEWER LOCATION.

ESTIMATE OF EARTHWORK:

CUT FILL

400 C.Y. 2691 C.Y. (W/ 1.15 ASSUMED SHRINKAGE FACTOR)

2291 C.Y. TO BE IMPORTED TO THE SITE (PRIMARILY TOPSOIL)

14 C.Y. PER TRUCK = 163 TRUCKS

15 TRUCKS PER DAY = 11 DAYS

TRUCKS SHALL NOT EXCEED POSTED WEIGHT LIMITS FOR ALL BRIDGES

DURING HAUL OPERATIONS.

ANY SOFT SOIL REMOVAL WILL ALTER THESE NUMBERS

ANY MATERIAL REMOVAL FROM SITE INCLUDING TOP SOILS WILL ALTER THESE

NUMBERS.

THE ESTIMATED EARTHWORK QUALITIES ARE CALCULATED FOR PERMIT AND

INSPECTION. THESE QUANTITIES ARE NOT INTENDED TO BE USED FOR BID.

THE ABOVE QUANTITIES OF EARTHWORK ARE BE REGARDED AS AN ESTIMATE

OF THE BULK MOVEMENT OR REDISTRIBUTION OF SOILS ON THIS PROJECT.

AS AN ESTIMATE, THESE QUANTITIES ARE INTENDED FOR GENERAL USE, AND

THE DESIGN PROFESSIONAL ASSUMES NO LIABILITY FOR COST OVERRUNS

DUE TO EXCAVATED MATERIALS OR SHORTAGES OF FILL.

THE QUANTITIES ESTIMATED ARE BASED UPON THE HORIZONTAL AND

VERTICAL LOCATION OF THE IMPROVEMENTS AS PROPOSED ON THE SITE

IMPROVEMENT PLANS PREPARED BY TERRASPEC.

EARTHWORK THAT MAY BE NECESSARY FOR COMPLETION OF THE PROJECT

INCLUDE, BUT ARE NOT LIMITED TO, MISCELLANEOUS UNDERGROUND

CONDUITS INCLUDING SEWER LINES AND WATER MAINS; STANDARD

MANHOLES, PROCESS OR TRANSFER PIPING, ELECTRICAL OR TELEPHONE

CONDUITS, BASES FOR LIGHT STANDARDS, BUILDINGS FOOTINGS AND

FOUNDATIONS, ETC.

THE DESIGN PROFESSIONAL ASSUMES NO RESPONSIBILITY FOR THE ACTUAL

SIZE OF THE FIELD EXCAVATIONS MADE FOR THE INSTALLATION OF

UNDERGROUND STRUCTURES, AND AS SUCH, THE ACTUAL QUANTITIES OF

EARTHWORK FROM SUCH ITEMS MAY VARY FROM THE ESTIMATE SHOWN

ABOVE.

M.S.D. STANDARD CONSTRUTION:

ALL STORM AND SANITARY SEWER STRUCTURES AND APPURTENANCES TO BE

DEDICATED TO MSD, OR TO BE PRIVATE UNDER MSD INSPECTION, SHALL

CONFORM TO THE METROPOLITAN ST. LOUIS SEWER DISTRICT, STANDARD

CONSTRUCTION SPECIFICATIONS FOR SEWERS AND DRAINAGE FACILITIES,

LATEST ADDITION. THAT WILL INCLUDE STANDARD CONSTRUCTION DETAILS

SHOWN THEREIN, AND SHALL INCLUDE ALL SUBSEQUENT CHANGES MADE

THERETO.

SOME RECENT CHANGES CONCERN PLASTIC PIPE MATERIAL AND PIPE FIELD

TESTING AND PERFORMANCE, AND INCLUDE THE FOLLOWING:

PART 2 - MATERIALS OF CONSTRUCTION

HIGH DENSITY POLYETHYLENE (HDPE) PIPE IS NOT ALLOWED FOR GRAVITY

SEWERS FOR STORM, COMBINED, OR SANITARY SEWERS THAT ARE "PUBLIC"

OR "PRIVATE UNDER MSD INSPECTION".

POLYPROPYLENE (PP) PIPE IS ALLOWED AS FOLLOWS FOR GRAVITY SEWERS

THAT ARE "PUBLIC" OR "PRIVATE UNDER MSD INSPECTION:

FOR USE IN SANITARY AND COMBINED SEWERS 12 TO 60 INCHES IN DIAMETER

IT SHALL CONFORM TO THE REQUIREMENTS OF ASTM F2764 "STANDARD

SPECIFICATION FOR 6 TO 60 IN. POLYPROPYLENE (PP) CORRUGATED DOUBLE

AND TRIPLE WALL PIPE AND FITTINGS FOR NON- PRESSURE SANITARY SEWER

APPLICATIONS."

FOR USE IN STORM SEWERS 12 TO 24 INCHES IN DIAMETER IT SHALL

CONFORM TO THE REQUIREMENTS OF ASTM F2881 "STANDARD SPECIFICATION

FOR 12 TO 60 IN. POLYPROPYLENE (PP) DUAL WALL PIPE AND FITTINGS FOR

NON-PRESSURE STORM SEWER APPLICATIONS;" OR

FOR USE IN STORM SEWERS 12 TO 60 INCHES IN DIAMETER IT SHALL

CONFORM TO THE REQUIREMENTS OF ASTM F2764 "STANDARD SPECIFICATION

FOR 6 TO 60 IN. POLYPROPYLENE (PP) CORRUGATED DOUBLE AND TRIPLE

WALL PIPE AND FITTINGS FOR NON- PRESSURE SANITARY SEWER

APPLICATIONS."

PART 4 - PIPE SEWER CONSTRUCTION

SECTION B, PIPE FIELD TESTS, PARAGRAPH 2, REACH INTEGRITY - DELETE THE

FIRST SENTENCE AND THE FOLLOWING APPLIES:

ALL SANITARY AND COMBINED SEWERS SHALL SUSTAIN A MAXIMUM LEAKAGE

LIMIT OF 100 GALLONS /INCH OF PIPE DIAMETER/ MILE OF LINE/DAY, AS

REQUIRED BY THE MISSOURI DEPARTMENT OF NATURAL RESOURCES

SPECIFICATIONS.

SECTION B, PIPE FIELD TESTS, PARAGRAPH 2, REACH INTEGRITY TESTING,

SUBPARAGRAPH C, INFILTRATION/ EXFILTRATION TESTING - DELETE THE SIXTH

SENTENCE, CONCERNING LEAKAGE LIMITS, AND THE FOLLOWING

REPLACEMENT APPLIES:

THE MEASUREMENT OF LEAKAGE SHALL NOT EXCEED 100 GALLONS/INCH OF

PIPE DIAMETER/MILE OF LINE/DAY, AS REQUIRED BY THE MISSOURI

DEPARTMENT OF NATURAL RESOURCES SPECIFICATIONS.

SECTION B, PIPE FIELD TESTS, PARAGRAPH 4, MANHOLE TESTING,

SUBPARAGRAPH A, VACUUM TESTING - AFTER THE FIRST SENTENCE, THE

FOLLOWING ADDITION APPLIES:

THE VACUUM TEST MUST BE PERFORMED PRIOR TO BACKFILLING AROUND

THE MANHOLE UNLESS THE CONTRACTOR PROVIDES DOCUMENTATION FROM

THE PRECAST MANHOLE MANUFACTURER STATING THAT THE MANHOLE MAY

BE VACUUM TESTED AFTER BACKFILLING HAS TAKEN PLACE. THE

CONTRACTOR MUST SUBMIT THIS DOCUMENTATION PRIOR TO BACKFILLING

AROUND ANY MANHOLE.

SECTION B, PIPE FIELD TESTS, PARAGRAPH 4, MANHOLE TESTING,

SUBPARAGRAPH B, EXFILTRATION TESTING - DELETE THE SECOND SENTENCE,

CONCERNING LEAKAGE LIMITS, AND THE FOLLOWING ADDITION APPLIES:

FOR EXFILTRATION TESTING, THE ALLOWABLE LEAKAGE LIMIT IS 100

GALLONS/INCH OF PIPE DIAMETER/MILE OF LINE/DAY WHEN THE AVERAGE

HEAD ON THE TEST SECTION IS THREE FEET (3') OR LESS.

SOILS ENGINEER WILL VERIFY THAT ALL COMPRESSIBLE MATERIAL HAS BEEN

REMOVED PRIOR TO FILL PLACEMENT AND THAT ALL FILL, UNDER SANITARY

AND STORM SEWER LINES CONSTRUCTED ABOVE ORIGINAL GRADE, HAS BEEN

COMPACTED TO 90% OF "MODIFIED PROCTOR". FILL IS TO BE PLACED IN A

MAXIMUM OF 9-INCH LIFTS. TEST SHALL BE TAKEN AT A MAXIMUM OF 50-FOOT

INTERVALS ALONG THE ROUTE OF THE PIPE; AT A MAXIMUM OF 2-FOOT

VERTICALLY; AND LATERALLY ON EACH SIDE OF THE PIPE, AT A DISTANCE

EQUAL TO THE DEPTH OF FILL OVER THE PIPE. A COPY OF THESE RESULTS

WILL BE SUBMITTED TO M.S.D. PRIOR TO CONSTRUCTION APPROVAL.

IF REINFORCED CONCRETE PIPE IS USED FOR SANITARY OR COMBINED

SEWERS LARGER THAN 27", ALL PIPE AND JOINTS SHALL CONFORM TO ASTM C

361. IN ADDITION, IF THE DIAMETER IS LARGER THAN 48", THE JOINT TYPE

MUST INCLUDE A GASKET THAT IS CONFINED IN A GROVE IN THE SPIGOT OF

THE PIPE.

PUBLIC SEWER MAINTENANCE:

MAINTENANCE OF THE SEWERS DESIGNATED "PUBLIC" SHALL BE THE

RESPONSIBILITY OF THE METROPOLITAN ST. LOUIS SEWER DISTRICT UPON

DEDICATION OF THE SEWERS TO THE DISTRICT.

TRENCH BACKFILL COMPACTION AND TESTING REQUIREMENTS: THE

CONTRACTOR IS TO REFER TO SECTION H OF THE METROPOLITAN ST. LOUIS

SEWER DISTRICT, STANDARD CONSTRUCTION SPECIFICATIONS FOR SEWERS

AND DRAINAGE FACILITIES, 2009 EDITION, TO ESTABLISH THE REQUIREMENTS

FOR SPECIFIC TYPE OF BACKFILL BEING USED.

LIMITS OF DISTURBANCE:

THE CONTRACTOR SHALL STAY WITHIN THE LIMITS OF DISTURBANCE AS

SHOWN ON THE PLANS AND MINIMIZE DISTURBANCE WITHIN THE WORK AREA

WHENEVER POSSIBLE.

BACKWATER VALVE NOTE:

A BACKWATER VALVE SHALL BE REQUIRED ON ALL BUILDING LATERALS PER

LOCAL PLUMBING CODE.

PROPOSED CONNECTIONS:

EXISTING DOMESTIC WATER AND PUBLIC SANITARY CONNECTIONS WILL BE

MODIFIED WITH THIS WORK.

26MSD-00157 - BASE MAP-07L

6. SCHOOL DISTRICT:

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PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

NOTE: UNDERGROUND FACILITIES, STRUCTURES, AND UTILITIES HAVE BEEN PLOTTED

FROM BEST AVAILABLE RECORDS, THEREFORE THE RELATIONSHIP BETWEEN

PROPOSED WORK AND EXISTING FACILITIES, STRUCTURES, AND UTILITIES MUST BE

CONSIDERED APPROXIMATE, AND IT IS THE CONTRACTORS RESPONSIBILITY TO

DETERMINE THEIR EXACT LOCATION AND THE EXISTENCE OF ANY NOT SHOWN.

ter ras pec

26MSD-00157 - BASE MAP-07L

Standard DNR Aluminum Disk stamped SL-119 situated in the grassy area west of the sidewalk near the northern end of right turn lane from the southeast bound Charbonier

Road onto southwest bound Howdershell Road

NAVD 88 (SLC2011a) EL = 577.03'

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CHARBONIER ROAD (WIDTH VARIES)

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

NOTE: SILTATION CONTROL FENCE REQUIRED ALONG THE ENTIRE LENGTH OF THE

CHARBONIER RD. FRONTAGE, INSIDE THE PROJECT / DISTURBANCE LIMITS INDICATED (APPROX.

900 LF). SILTATION CONTROL NOT SHOWN ON THESE PLANS FOR CLARITY PURPOSES.

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PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

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NOTE: UNDERGROUND FACILITIES, STRUCTURES, AND UTILITIES HAVE BEEN PLOTTED FROM BEST

AVAILABLE RECORDS, THEREFORE THE RELATIONSHIP BETWEEN PROPOSED WORK AND EXISTING

FACILITIES, STRUCTURES, AND UTILITIES MUST BE CONSIDERED APPROXIMATE, AND IT IS THE

CONTRACTORS RESPONSIBILITY TO DETERMINE THEIR EXACT LOCATION AND THE EXISTENCE OF ANY

NOT SHOWN.

ter ras pec

26MSD-00157 - BASE MAP-07L

1. PROVIDE TREE PROTECTION TO MAINTAIN

A HEALTHY GROWING CONDITION IN AREA

ADJOINING DEMOLITION AND GRADING.

2. ALL DEMOLITION NOT SPECIFICALLY

INDICATED BUT NECESSARY TO

COMPLETE THE PROJECT AS SHOWN

SHALL BE THE RESPONSIBILITY OF THE

CONTRACTOR.

3. CUTTING AND REMOVAL INDICATED ON

THE DRAWINGS ARE GENERAL

INDICATORS ONLY AND DO NOT

NECESSARILY REPRESENT THE FULL

EXTENT OF CUTTING AND REMOVAL

WHICH MAY BE REQUIRED BY THE JOB

CONDITIONS.

4. EXISTING TREES TO REMAIN UNLESS

OTHERWISE INDICATED. (PROTECT)

5. CONTRACTOR IS RESPONSIBLE FOR

INSTALLATION AND MAINTENANCE OF ALL

SILTATION CONTROL SHOWN AND OTHER

DEVICES THAT MAY BE REQUIRED.

6. CONTRACTOR TO LEGALLY DISPOSE OF

ITEMS EXCEPT THOSE INDICATED TO BE

REINSTALLED, SALVAGED, OR TO REMAIN

ON THE OWNER'S PROPERTY.

7. ALL EXISTING BELOW GROUND UTILITIES

TO BE PROTECTED AND USED IN PLACE

UNLESS OTHERWISE NOTED.

8. PROTECT IMPROVEMENTS INDICATED TO

REMAIN AGAINST DAMAGE AND SOILING

DURING DEMOLITION.

(TBR) TO BE REMOVED

EXISTING TREE TO BE REMOVED

EXISTING TREES TO REMAIN.

TREES TO BE PROTECT DURING

CONSTRUCTION OPERATIONS

REMOVE EXISTING TREE

REMOVE ASPHALT PAVEMENT AS INDICATED

REMOVE EXISTING CHAIN LINK FENCE (4' & 6' HT.)

REMOVE EXISTING FOUL BALL POLES

REMOVE EXISTING DUGOUTS

REMOVE EXISTING BACKSTOPS

REMOVE EXISTING DOUBLE GATE

REMOVE AND REPLACE EXIST. SIDEWALK AS

NECESSARY TO PERMIT INSTALLATION OF 12"Ø PIPE

UNDER WALK

EXISTING FENCE TO REMAIN

EXISTING ASPHALT PAVEMENT

TO REMAIN (PROTECT)

EXISTING TREE TO REMAIN

(PROTECT)

EXISTING LIGHT STANDARDS TO

REMAIN (PROTECT).

UNDERGROUND ELECTRIC TO BE

LOCATED AND NOT DISTURBED

DURING CONSTRUCTION.

DRINKING FOUNTAIN TO REMAIN

NOTE:

EXISTING BLEACHERS TO BE REMOVED AND STORED

PER OWNERS DIRECTION

Standard DNR Aluminum Disk stamped SL-119 situated in the grassy area west of the sidewalk near the northern end of right turn lane from the southeast bound Charbonier

Road onto southwest bound Howdershell Road

NAVD 88 (SLC2011a) EL = 577.03'

EXISTING PAVEMENT TO BE REMOVED

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CHARBONIER ROAD (WIDTH VARIES)

PROJECT LIMITS

PROJECT LIMITS

BMP RESERVE AREA 'A'

AMENDED SOILS

10' MIN. WIDTH (6837 SF)

BMP RESERVE AREA 'E'

AMENDED SOILS

20' WIDE (3906 SF)

BMP RESERVE AREA 'D'

AMENDED SOILS

10' WIDE (2487 SF)

BMP RESERVE AREA 'B'

AMENDED SOILS

10' WIDE (467 SF)

PROJECT LIMITS

EXP. JOINT TOOLED

JOINT

CONC.

PAV'T

EXP. JOINT TOOLED

JOINT

CONC.

PAV'T

RAMP /

HANDRAILS

STAIRS / HANDRAILS

BMP RESERVE AREA 'C'

AMENDED SOILS

10' WIDE (271 SF)

LIMITS OF FIELD SOD INSTALLATION - 4'

BEYOND THE SIDE TOUCH LINES AND

END GOAL LINES (TYPICAL)

(APPROX. 8914 SY)

NOTE: SEE LANDSCAPE SPECS FOR

FIELD SOD SPECIES

NOTE: SILTATION CONTROL FENCE REQUIRED ALONG THE ENTIRE LENGTH OF THE

CHARBONIER RD. FRONTAGE, INSIDE THE PROJECT / DISTURBANCE LIMITS INDICATED (APPROX.

900 LF). SILTATION CONTROL NOT SHOWN ON THESE PLANS FOR CLARITY PURPOSES.

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PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

LIMITS OF MSD DISTURBANCE (TYP)

LIMITS OF MSD DISTURBANCE (TYP)

PROJECT LIMITS

AMEND SOIL AND INSTALL SOD IN

AREA OF ASPHALT REMOVAL

NOTE: SEE LANDSCAPE SPECS FOR

AMENDED SOILS SOD SPECIES

(TYP.)

NEW SOCCER FIELD

NEW SOCCER FIELD

BMP RESERVE AREA 'F'

AMENDED SOILS

(7607 SF)

BMP RESERVE AREA 'G'

AMENDED SOILS

(2867 SF)

AMEND SOIL AND INSTALL SOD

IN AREA OF ASPHALT REMOVAL

LIMITS OF MSD

DISTURBANCE

LIMITS OF MSD DISTURBANCE

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6' HT. PVC COATED CHAIN LINK FENCE,

SAME LOCATION AS 4' FENCE TO BE

REMOVED (470 LF)

LIMITS OF FIELD SOD INSTALLATION - 4'

BEYOND THE SIDE TOUCH LINES AND

END GOAL LINES (TYPICAL)

(APPROX. 8914 SY)

NOTE: SEE LANDSCAPE SPECS FOR

FIELD SOD SPECIES

6' HT. PVC COATED CHAIN LINK FENCE,

SAME LOCATION AS 4' FENCE TO BE

REMOVED (470 LF)

6' HT. PVC COATED CHAIN LINK FENCE,

SAME LOCATION AS 4' FENCE TO BE

REMOVED (470 LF)

NOTE: UNDERGROUND FACILITIES, STRUCTURES, AND UTILITIES HAVE BEEN PLOTTED FROM BEST

AVAILABLE RECORDS, THEREFORE THE RELATIONSHIP BETWEEN PROPOSED WORK AND EXISTING

FACILITIES, STRUCTURES, AND UTILITIES MUST BE CONSIDERED APPROXIMATE, AND IT IS THE

CONTRACTORS RESPONSIBILITY TO DETERMINE THEIR EXACT LOCATION AND THE EXISTENCE OF ANY

NOT SHOWN.

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26MSD-00157 - BASE MAP-07L

FIELD "A"

11v11 SHOWN

SEE SHEET D1 FOR

FIELD DIMENSIONS

FIELD "B"

Standard DNR Aluminum Disk stamped SL-119 situated in the grassy area west of the sidewalk near the northern end of right turn lane from the southeast bound Charbonier

Road onto southwest bound Howdershell Road

NAVD 88 (SLC2011a) EL = 577.03'

FIELD "A" & "B"

SEE SHEET D1 FOR

FIELD DIMENSIONS

FIELD "A" & "B"

SEE SHEET D1 FOR

FIELD DIMENSIONS

11v11 SHOWN

SEE SHEET D1 FOR

FIELD DIMENSIONS

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CHARBONIER ROAD (WIDTH VARIES)

572.0±

568.3±

570.5±

566.9±

567.6±

FL563.6±

FL571.6±

FL564.1±

FL564.2±

569.8± 571.8±

565.8± 567.1±

10'± 12"Ø CPP @ 1.78%

570.1±

571.0±

569.2±

568.7±

569.6±

567.8±

569.5± 567.8±

566.8± 567.3±566.3±

570.8± 571.3±

570.3±

577.25±

577.35±

577.45±

576.0±

576.1±

574.75±

574.85±

575.5± 575.6±

574.5±

574.6±

579.55± 579.25±

578.75±

MATCH EX. GRADE 583.35±

579.15±

581.25±

581.35±

579.45±

MATCH EX. GRADE - 585.5±

571.0±

570.9±

571.1±

571.0± 571.7±

2.

2.

1.8

5±

1.3 5±

0.

0.

9.

573.0±

572.4±

572.5±

571.5±570.5±

570.6±

570.4± 570.5±

MATCH EX. GRADE

570.9±

570.4± 570.3±

572.0± 571.35±

574.1±

574.0±

575.0± 575.1±

PROJECT LIMITS

PROJECT LIMITS

BMP RESERVE AREA 'A'

AMENDED SOILS

10' MIN. WIDTH (6837 SF)

BMP RESERVE AREA 'E'

AMENDED SOILS

20' WIDE (3906 SF)

BMP RESERVE AREA 'D'

AMENDED SOILS

10' WIDE (2487 SF)

BMP RESERVE AREA 'B'

AMENDED SOILS

10' WIDE (467 SF)

PROJECT LIMITS

BMP RESERVE AREA 'C'

AMENDED SOILS

10' WIDE (271 SF)

LIMITS OF FIELD SOD INSTALLATION - 4'

BEYOND THE SIDE TOUCH LINES AND

END GOAL LINES (TYPICAL)

(APPROX. 8914 SY)

NOTE: SEE LANDSCAPE SPECS FOR

FIELD SOD SPECIES

NOTE: SILTATION CONTROL FENCE REQUIRED ALONG THE ENTIRE LENGTH OF THE

CHARBONIER RD. FRONTAGE, INSIDE THE PROJECT / DISTURBANCE LIMITS INDICATED (APPROX.

900 LF). SILTATION CONTROL NOT SHOWN ON THESE PLANS FOR CLARITY PURPOSES.

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40'± 10"Ø CPP @ 2.0%

(PRIVATE)

FL571.0±

FL570.2±

572.0± 571.3±

571.65±

571.25±

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

LIMITS OF MSD DISTURBANCE (TYP)

LIMITS OF MSD DISTURBANCE (TYP)

PROJECT LIMITS

AMEND SOIL AND INSTALL SOD IN

AREA OF ASPHALT REMOVAL

NOTE: SEE LANDSCAPE SPECS FOR

AMENDED SOILS SOD SPECIES

(TYP.)

NEW SOCCER FIELD

NEW SOCCER FIELD

BMP RESERVE AREA 'F'

AMENDED SOILS

(7607 SF)

BMP RESERVE AREA 'G'

AMENDED SOILS

(2867 SF)

AMEND SOIL AND INSTALL SOD

IN AREA OF ASPHALT REMOVAL

LIMITS OF MSD

DISTURBANCE

LIMITS OF MSD DISTURBANCE

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571.0±

CONC.

PAV'T

CONC.

PAV'T

6' CHAIN LINK FENCE

CONC. PAV'T

STAIRS / HANDRAILS

LIMITS OF FIELD SOD INSTALLATION - 4'

BEYOND THE SIDE TOUCH LINES AND

END GOAL LINES (TYPICAL)

(APPROX. 8914 SY)

NOTE: SEE LANDSCAPE SPECS FOR

FIELD SOD SPECIES

NOTE: UNDERGROUND FACILITIES, STRUCTURES, AND UTILITIES HAVE BEEN PLOTTED FROM BEST

AVAILABLE RECORDS, THEREFORE THE RELATIONSHIP BETWEEN PROPOSED WORK AND EXISTING

FACILITIES, STRUCTURES, AND UTILITIES MUST BE CONSIDERED APPROXIMATE, AND IT IS THE

CONTRACTORS RESPONSIBILITY TO DETERMINE THEIR EXACT LOCATION AND THE EXISTENCE OF ANY

NOT SHOWN.

ter ras pec

26MSD-00157 - BASE MAP-07L

Standard DNR Aluminum Disk stamped SL-119 situated in the grassy area west of the sidewalk near the northern end of right turn lane from the southeast bound Charbonier

Road onto southwest bound Howdershell Road

NAVD 88 (SLC2011a) EL = 577.03'

GENERAL GRADING / LANDSCAPE NOTES:

1. TOP 4"-6" OF SOIL PLACED OVER ENTIRE PLAYING FIELD SURFACE SHALL BE HIGH QUALITY

TOPSOIL AS NOTED IN THE TECHNICAL SPECIFICATIONS - LANDSCAPE SECTION OF THESE

DRAWINGS.

2. SOCCER FIELD PLAYING SURFACES AND ADJOINING 10' STRIP SHALL BE SODDED PER

TECHNICAL SPECIFICATIONS, ALL OTHER AREAS DISTURBED BY CONSTRUCTION ACTIVITY

SHALL BE SEEDED AS SPECIFIED.

3. SOCCER FIELD PLAYING SURFACE GRADES SHALL BE SHALL BE ESTABLISHED UTILIZING

LASER-CONTROLLED GRADING EQUIPMENT TO ACHIEVE ±1/4 " TOLERANCES OVER 200 FEET.

ter ras pec

26MSD-00157 - BASE MAP-07L

A. CONTRACTOR SHALL ESTABLISH PERIMETER SILTATION CONTROL PRIOR TO ANY CONSTRUCTION ACTIVITIES. AREAS REQUIRING

MINOR CLEARING &/OR GRADING PRIOR TO INSTALLATION OF SILTATION CONTROL SHALL BE COMPLETED IN A TIMELY MANNER AND

SILTATION CONTROL ESTABLISHED IMMEDIATELY FOLLOWING.

B. EXISTING PARKING LOT TO BE USED AS TEMPORARY CONSTRUCTION PARKING WITH PUBLIC ACCESS WAYS. DURING MUDDY

CONDITIONS, DRIVERS OF VEHICLES WILL BE REQUIRED TO WASH THEIR WHEELS BEFORE ENTERING THE ROADWAY.

C. WASH DOWN AREA SHALL FOLLOW THE CONTOUR OF THE NATURAL TERRAIN TO THE EXTENT POSSIBLE. SLOPES SHALL NOT EXCEED

10 PERCENT SLOPE.

D. CONTRACTOR SHALL CLEAR AND GRUB THOSE AREAS OF THE SITE SCHEDULED FOR CONSTRUCTION. AREAS NOT SCHEDULED FOR

IMMEDIATE CONSTRUCTION SHALL NOT BE CLEARED OF ESTABLISHED VEGETATION UNTIL REQUIRED. REMAINDER OF SITE SHALL BE

GRADED, AS REQUIRED. CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLATION AND MAINTENANCE OF SILTATION CONTROL

THROUGHOUT THE DURATION OF THE PROJECT.

E. ALL PROPOSED TURF AREAS, ONCE CONSTRUCTED TO FINAL GRADE, SHALL BE SODDED WITHIN 5 DAYS AFTER FINAL GRADING OF THE

SITE WHERE SHOWN ON THE PLAN. SHOULD WEATHER CAUSE DELAYS IN EARTHWORK OPERATIONS, ADDITIONAL SILTATION CONTROL

MEASURES MAY BE REQUIRED.

F. ANY DISTURBED AREAS WHICH WILL REMAIN UNWORKED FOR 5 DAYS OR MORE SHALL BE STABILIZED WITH SEEDING AND/OR

MULCHING PER SPECIFICATIONS WITHIN 5 DAYS. IF SEASONAL CONDITIONS PROHIBIT SEEDING, MULCHING OR MATTING SHALL BE USED.

G. INSPECTION OF SILTATION CONTROL DEVICES SHALL TAKE PLACE ONCE EVERY SEVEN DAYS AND WITHIN 48 HOURS AFTER A

RAINFALL THAT CAUSES STORM WATER RUNOFF TO OCCUR ONSITE. REPORTS MUST BE SENT TO CITY OF FLORISSANT ENGINEERING

DIVISION ON A WEEKLY BASIS. ANY SILTATION CONTROL IN NEED OF REPAIR SHALL OCCUR IMMEDIATELY.

H. ALL GRADING OPERATIONS ARE SUBJECT TO THE RECOMMENDATIONS OF THE GEOTECHNICAL ENGINEERING REPORT.

I. SEDIMENTATION CONTROLS SHALL ONLY BE REMOVED AFTER THE SITE IS COMPLETELY STABILIZED, VEGETATION IS WELL

ESTABLISHED, AND ALL PAVEMENT AREAS ARE INSTALLED.

PARKING & WASH DOWN AREA (TC-4) = 1 EA. (TEMPORARY)

SILTATION FENCE = 417 LF. (TEMPORARY)

REMOVAL OF BMP'S (0.5 DAY)

2. SITE ADDRESS:

8. CONSTRUCTION SCHEDULE (TENTATIVE) - (STARTING DATE , AUGUST 1, 2026 - END , DECEMBER 31, 2026)

SITE GRADING (DURATION)

SEDIMENT/ EROSION CONTROL INSTALL (1 DAYS)

SEDIMENT/ EROSION CONTROL MAINTAIN (DURATION OF PROJECT)

MONTH-APRIL MONTH-JULY

3. SITE INFORMATION:

SEEDING/ SODDING (1 DAY)

5.

6. PERMIT HOLDER

9. CLEARING TECHNIQUES THAT RETAIN EXISTING VEGETATION TO THE MAX EXTENT PRACTICABLE SHALL BE USED AND THE TIME

PERIOD FOR DISTURBED AREAS TO BE WITHOUT VEGETATIVE COVER SHALL BE MINIMIZED TO THE EXTENT PRACTICAL.

ADDITIONAL SILTATION CONTROL SHALL BE INSTALLED AS REQUIRED BY CITY OF FLORISSANT ENGINEERING DIVISION.

10. AREAS SHALL BE SEEDED AFTER CLEARING AND GRUBBING WHEN NO ACTIVITY WILL OCCUR WITHIN THIRTY DAYS.

A STORMWATER POLLUTION PREVENTION PLAN (SWPPP) AND A MAJOR LAND DISTURBANCE (MLD)

PERMIT WILL BE REQUIRED PRIOR TO ANY GRADING ON THE SITE, BEYOND WHAT IS APPROVED ON THIS PLAN.

DESCRIPTION OF B.M.P.'S (INTERIM & PERMANENT STABILIZATION PRACTICES/SCHEDULE)

11. TABLE OF BEST MANAGEMENT PRACTICES (BMP'S) QUANTITIES

TABLE 1- LIST OF BEST MANAGEMENT PRACTICES

PLANNED RESPONSE TO LOSS OF CONTAINED SEDIMENT B.M.P.'S SHALL BE REPAIRED AND/OR REPLACED IMMEDIATELY, AS REQUIRED, TO STABILIZE SITE AND CONTAIN SEDIMENT-LADEN RUNOFF. OFFSITE AREAS SHALL BE REVIEWED FOR EXTENT OF IMPACT FROM B.M.P.

FAILURE. PERMIT HOLDER SHALL BE REQUIRED TO PROVIDE DOCUMENTATION OF THE B.M.P. MEASURES INSTALLED AND SCHEDULED

MAINTENANCE AND REPAIRS. PERMIT HOLDER SHALL ALSO BE REQUIRED TO CONTACT THE CITY OF FLORISSANT ENGINEERING DIVISION

AND REPORT ALL INCIDENTS OF FAILURE AND PROVIDE DOCUMENTATION OF ACTIONS AND B.M.P. MEASURES. DESCRIPTION OF

PERMANENT B.M.P.'S TO REMAIN AFTER CONSTRUCTION

A. TURF AREAS - TURF AREAS SHALL BE MAINTAINED TO INSURE SITE AREAS REMAIN STABILIZED UPON COMPLETION OF

CONSTRUCTION ACTIVITIES.

B. PAVED AREAS AND WALKWAYS - AREAS SUBJECT TO FOOT AND VEHICLE TRAFFIC SHALL BE PAVED AND KEPT IN GOOD REPAIR

FOLLOWING COMPLETION OF CONSTRUCTION ACTIVITIES. MAINTENANCE SHALL BE THE OWNER'S RESPONSIBILITY.

12. ANY LAND CLEARING, CONSTRUCTION, OR DEVELOPMENT INVOLVING THE MOVEMENT OF EARTH SHALL BE IN ACCORDANCE WITH

THE STORM WATER POLLUTION PREVENTION PLAN, AND THE PERSON ISSUED A LAND DISTURBANCE PERMIT ASSUMES AND

ACKNOWLEDGES RESPONSIBILITY FOR COMPLIANCE WITH THE ST. LOUIS COUNTY LAND DISTURBANCE CODE AND THE APPROVED

STORM WATER POLLUTION PLAN AT THE SITE OF THE PERMITTED ACTIVITY.

13. DESCRIPTION OF B.M.P.'S TO PREVENT POTENTIAL POLLUTANTS (CONSTRUCTION WASTES, TOXIC OR HAZARDOUS SUBSTANCES, PETROLEUM PRODUCTS, PESTICIDES, HERBICIDES, SITE LITTER, SANITARY WASTES, ETC.)

A. SOLID NON-HAZARDOUS CONSTRUCTION WASTE - DISPOSE OF IN TRASH DUMPSTERS OR APPROVED EQUIVALENT IN A LOCATION

APPROVED BY THE OWNER. POTENTIALLY SOLUBLE OR LEACHABLE SOLID WASTE SHALL BE STORED OFF THE GROUND AND IN COVERED

LEAK-PROOF CONTAINERS. SOLID WASTE SHALL BE PROPERTY DISPOSED OF OFF-SITE ON A REGULAR BASIS.

B. HAZARDOUS WASTE - HAZARDOUS WASTE SHALL BE SEGREGATED FROM NON-HAZARDOUS CONSTRUCTION SITE DEBRIS. LIQUID OR

SEMI-LIQUID HAZARDOUS WASTE SHALL BE STORED IN APPROPRIATE CONTAINERS (CLOSED DRUMS OR SIMILAR) AND SHALL BE KEPT

UNDER COVER. GRANULAR, SOLUBLE OR LEACHABLE HAZARDOUS WASTE MATERIALS SHALL BE STORED OFF THE GROUND AND IN

COVERED LEAK-PROOF CONTAINERS. THE OWNER SHALL PROPERLY APPROVE ANY HAZARDOUS WASTE STORAGE AREA LOCATIONS.

C. HAZARDOUS WASTE SHALL BE PROPERLY DISPOSED OF OFF-SITE ON A REGULAR BASIS BY A REPUTABLE, LICENSED HAZARDOUS

WASTE HAULER. D. IT IS NOT THE INTENT OF THIS SWPPP TO SUPERSEDE OR REPLACE NORMAL SITE ASSESSMENT AND REMEDIATION

PROCEDURES CONCERNING HAZARDOUS MATERIALS. SIGNIFICANT SPILLS AND/OR CONTAMINATION WARRANT AN IMMEDIATE

RESPONSE BY TRAINED PROFESSIONALS. SUSPECTED JOB SITE CONTAMINATION SHOULD IMMEDIATELY BE REPORTED TO

REGULATORY AUTHORITIES AND PROTECTIVE MEASURES TAKEN.

E. ON-SITE FUELING FACILITIES ARE REQUIRED TO ADHERE TO ALL APPLICABLE FEDERAL AND STATE REGULATIONS CONCERNING

STORAGE AND DISPENSERS.

F. PROVISIONS SHALL BE MADE SO THAT A SUFFICIENT NUMBER OF TEMPORARY TOILET FACILITIES ARE AVAILABLE TO SERVE THE

NUMBER OF WORKERS ON-SITE.

A. PERMIT HOLDER SHALL NOTIFY ALL CONTRACTORS AND OTHER ENTITIES (INCLUDING UTILITY CREWS, CITY/COUNTY

EMPLOYEES, OR THEIR AGENTS) THAT WILL PERFORM WORK AT THE SITE, OF THE EXISTENCE OF THE STORM WATER

POLLUTION PREVENTION PLAN (SWPPP) AND WHAT ACTIONS OR PRECAUTIONS SHALL BE TAKEN WHILE ON SITE TO

MINIMIZE THE POTENTIAL FOR EROSION AND THE POTENTIAL FOR DAMAGING ANY BEST MANAGEMENT PRACTICES

(BMP'S).

B. PERMIT HOLDER SHALL DETERMINE THE NEED FOR AND ESTABLISH TRAINING PROGRAMS TO ENSURE THAT ALL SITE

WORKERS HAVE BEEN TRAINED, AT A MINIMUM, IN EROSION CONTROL, MATERIAL HANDLING AND STORAGE, AND

HOUSEKEEPING.

C. PERMIT HOLDER SHALL PROVIDE COPIES OF THE STORM WATER POLLUTION PREVENTION PLAN (SWPPP) TO ALL

PARTIES WHO ARE RESPONSIBLE FOR INSTALLATION, OPERATION OR MAINTENANCE OF ANY BEST MANAGEMENT

PRACTICES (BMP'S). D. PERMIT HOLDER SHALL MAINTAIN A CURRENT COPY OF THE STORM WATER POLLUTION

PREVENTION PLAN (SWPPP) ON THE SITE AT ALL TIMES.

7. PRIOR TO ANY MAJOR LAND DISTURBANCE ACTIVITY, A LAND DISTURBANCE PERMIT FROM THE STATE OF MISSOURI

DEPARTMENT OF NATURAL RESOURCES IS REQUIRED.

NOTE: SCHEDULE DURATION'S ARE SUBJECT TO CHANGE DUE TO WEATHER CONDITIONS. SOME OPERATIONS WILL

HAVE OVERLAP TIME FRAMES.

CITY OF FLORISSANT

SWPPP NOTES

1. SITE OWNER:

4. NO FLOODPLAIN ON SITE PER FERM# 29189C0061 K

TOTAL DISTURBED (PROJECT) AREA 298,3040 S.F. 6.85 ACRES

14. THE SWPPP SHALL HAVE SUFFICIENT INFORMATION TO BE OF PRACTICAL USE TO CONTRACTORS AND SITE CONSTRUCTION

WORKERS TO GUIDE THE INSTALLATION AND MAINTENANCE OF BMP'S. TEMPORARY STABILIZATION IS TO TAKE PLACE WHERE SOIL

DISTURBING ACTIVITIES WILL CEASE ON ANY PORTION OF THE SITE AND ARE NOT PLANNED TO RESUME FOR A PERIOD EXCEEDING 14

CALENDAR DAYS. TEMPORARY STABILIZATION MUST BE INITIATED IMMEDIATELY UPON KNOWING THE DURATION IS MORE THAN 14 DAYS.

TEMPORARY STABILIZATION MUST BE COMPLETED WITHIN 7 CALENDAR DAYS. SLOPES FOR DISTURBED AREAS MUST BE DEFINED IN THE

SWPPP. A SITE MAP OR MAPS, DEFINING THE SLOPED AREAS FOR ALL PHASES OF THE PROJECT, MUST BE INCLUDED IN THE SWPPP.

THE TYPES OF BMP'S USED MUST BE SUITED TO THE AREA DISTURBED, TAKING INTO ACCOUNT THE NUMBER OF ACRES EXPOSED AND

THE STEEPNESS OF THE SLOPES. IF THE SLOPE OF THE AREA IS GREATER THAN 3:1 (3 FEET HORIZONTAL TO 1 FOOT VERTICAL) OR IF

THE SLOPE IS GREATER THAN 3% AND GREATER THAN 150 FEET IN LENGTH, THAN THE PERMITEE MUST ESTABLISH TEMPORARY

STABILIZATION WITHIN 7 DAYS OF CEASING OPERATION ON THAT PART OF THE SITE. FINAL STABILIZATION OF DISTURBING AREAS MUST

BE INITIATED IMMEDIATELY AND COMPLETED WITHIN 7 CALENDAR DAYS WHENEVER ANY CLEARING, GRADING, EXCAVATING OR OTHER

EARTH DISTURBING ACTIVITIES HAVE PERMANENTLY CEASED ON ANY PORTION OF THE SITE. ALLOWANCES TO THE 7 DAY COMPLETION

PERIOD FOR TEMPORARY AND FINAL STABILIZATION MAY BE MADE DUE TO WEATHER OR EQUIPMENT MALFUNCTIONS. THE USE OF

ALLOWANCES SHALL BE DOCUMENTED IN THE SWPPP. A SITE MAP SHOWING THE OUTLINES OF THE TOTAL PROJECT AREA, THE AREAS

TO BE DISTURBED, ARES THAT WILL NOT BE DISTURBED, EXISTING LAND USES, LOCATIONS OF OFF-SITE MATERIALS, WASTE, BORROW, AND EQUIPMENT STORAGE AREAS, LOCATIONS AND NAMES OF SURFACE WATER BODIES THE SITE DRAINS TO, AREAS OF FINAL

STABILIZATION, LOCATIONS OF FLOOD PLAINS, LOCATIONS OF TEMPORARY AND PERMANENT BEST MANAGEMENT PRACTICES (BMP), LOCATIONS OF OUTFALLS, LOCATION(S) OF PORTA-POTTIES , GAS TANKS, DUMPSTERS, ETC. WITH UPDATES AND LOCATION CHANGES

AND SUCH OTHER INFORMATION AS MAY BE REQUIRED BY THE COUNTY DEPARTMENT(S) HAVING ENFORCEMENT AUTHORITY AND

RESPONSIBILITIES DESCRIBED IN SECTION 103.0 OF THE CODE. THE PERMITEE SHALL ENSURE THE BMP'S ARE PROPERLY INSTALLED AT

THE LOCATIONS AND RELATIVE TIMES SPECIFIED IN THE SWPPP. PERIPHERAL OR BORDER BMP'S TO CONTROL RUNOFF FROM

DISTURBED AREAS SHALL BE INSTALLED OR MARKED FOR PRESERVATION BEFORE GENERAL SITE CLEARING IS STARTED. NOTE THAT

THIS REQUIREMENT DOES NOT APPLY TO EARTH DISTURBANCES RELATED TO INITIAL SITE CLEARING AND ENTRY ESTABLISHMENT, EXIT

AND ACCESS OF THE SITE, WHICH MAY REQUIRE THAT STORMWATER CONTROLS BE INSTALLED IMMEDIATELY AFTER THE EARTH

DISTURBANCE. STORM WATER DISCHARGES FROM DISTURBED AREAS WHICH LEAVE THE SITE, SHALL PASS THROUGH AN APPROPRIATE

IMPEDIMENT TO SEDIMENT MOVEMENT, SUCH AS A SEDIMENTATION BASIN, SEDIMENT TRAPS, SILT FENCES, ETC., PRIOR TO LEAVING THE

AND DISTURBANCE SITE. A DRAINAGE COURSE CHANGE SHALL BE CLEARLY MARKED ON A SITE MAP AND DESCRIBED IN THE SWPPP.

F) UNCONTAMINATED PUMPED GROUND WATER

G) DISCHARGE FROM POTABLE WATER SOURCES

H) FOUNDATION DRAINS

I) AIR CONDITIONING CONDENSATION

J) IRRIGATION WATER, SPRINGS

K) WATER FROM CRAWL SPACE PUMPS

I) FOOTING DRAINS

M) LAWN WATERING

N) INDIVIDUAL RESIDENT CAR WASHING

O) FLOWS FROM RIPARIAN HABITATS AND WETLANDS

P) DE-CHLORINATED SWIMMING POOL DISCHARGES

Q) STREET WASH WATER

R) RESIDENTIAL BUILDING WAS WATERS, WITHOUT DETERGENTS

DISCHARGES OR FLOWS FROM FIRE FIGHTING ACTIVITIES OCCUR DURING EMERGENCY SITUATIONS. THE PERMITTEE IS NOT EXPECTED

TO EVALUATE FIRE FIGHTING DISCHARGES WITH REGARD TO POLLUTANT CONTRIBUTIONS. THEREFORE, THESE DISCHARGES ARE

AUTHORIZED AS ALLOWABLE NON-STORM WATER DISCHARGES, UNLESS IDENTIFIED, BY EPA, AS SIGNIFICANT SOURCES OF POLLUTANTS

TO WATERS OF THE U.S.

SEDIMENT SHALL BE WASHED FROM ALL VEHICLES AT WASH DOWN STATION PRIOR TO LEAVING THE SITE. NO TRACKING OF MUD ONTO

ANY ROADS SHALL BE ALLOWED.

THE U.S. EPA "NATURAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)" WEBSITE IS LOCATED AT :

HTTP://CFPUB.EPA.GOV/NPDES OR WWW.EPA.GOV/NE/NPDES/PERMITS/PERMIT_FINAL_MS4.PDF

THE FOLLOWING NON-STORM WATER DISCHARGES ARE AUTHORIZED BY THE EPA PROVIDED IT HAS BEEN DETERMINED BY THE

PERMITTEE THAT THEY ARE NOT SIGNIFICANT CONTRIBUTORS OF POLLUTANTS TO THE MS4. IMPLEMENTATION OF POLLUTION

PREVENTION MEASURES FOR NON STORM WATER DISCHARGES IS REQUIRED FOR SIGNIFICANT CONTRIBUTORS.

A) WATER LINE FLUSHING.

B) LANDSCAPE IRRIGATION

C) DIVERTED STREAM FLOWS

D) RISING GROUND WATER

E) UNCONTAMINATED GROUND WATER INFILTRATION (AS DEFINED AT 40 CFR 35.2005(20))

TEMPORARY STABILIZATION IS TO TAKE PLACE WHERE SOIL DISTURBING ACTIVITIES WILL CEASE ON ANY PORTION OF THE SITE AND ARE

NOT PLANNED TO RESUME FOR A PERIOD EXCEEDING 14 CALENDAR DAYS. TEMPORARY STABILIZATION MUST BE INITIATED IMMEDIATELY

UPON KNOWING THE DURATION IS MORE THAN 14 DAYS. TEMPORARY STABILIZATION MUST BE COMPLETED WITHIN 7 CALENDAR DAYS.

IF THE SLOPE OF THE AREA IS GRATER THAN 3:1 (3 FEET HORIZONTAL TO 1 FOOT VERTICAL) OR IF THE SLOPE IS GREATER THAN 3% AND

GREATER THAN 150 FEET IN LENGTH, THEN THE PERMITEE MUST ESTABLISH TEMPORARY STABILIZATION WITHIN 7 DAYS OF CEASING

OPERATION ON THAT PART OF THE SITE. FINAL STABILIZATION OF DISTURBED AREAS MUST BE INITIATED IMMEDIATELY AND COMPLETED

WITHIN 7 CALENDAR DAYS WHENEVER ANY CLEARING, GRADING, EXCAVATING, OR OTHER EARTH DISTURBING ACTIVITIES HAVE

PERMANENTLY CEASED ON ANY PORTION OF THE SITE. ALLOWANCES TO THE 7 DAY COMPLETION PERIOD FOR TEMPORARY AND FINAL

STABILIZATION MAY BE MADE DUE TO WEATHER OR EQUIPMENT MALFUNCTIONS. THE USE OF ALLOWANCES SHALL BE DOCUMENTED.

15. LOCATE STATE AND COUNTY LAND DISTURBANCE PERMITS, BMP INSPECTION REPORTS, ETC. WITH THE SWPPP.

16. 404/401 PERMIT NOT REQUIRED FOR THE SITE. NO DISCHARGE TO GOVERNED WATERS PROPOSED.

17. NO VISIBLE EVIDENCE OF SINKHOLES, SPRINGS, SEEPS OR KRAST FEATURES ON SITE.

18. NO HISTORIC PROPERTIES ON SITE.

19. ENDANGERED SPECIES:

BASED ON CATALOGED INFORMATION FROM THE UNITED STATES FISH & WILDLIFE SERVICE FEDERALLY LISTED ENDANGERED

OR THREATENED SPECIES ARE PRESENT NEAR OR WITHIN THE PROJECT AREA. THE FOLLOWING IS A LIST OF THE

ENDANGERED OR THREATENED SPECIES NEAR OR WITHIN THE PROJECT AREA: GRAY BAT, INDIANA BAT, MEAD'S

MILKWEED, DECURRENT FALSE ASTER, RUNNING BUFFALO CLOVER, PINK MUCKET, SCALESHELL MUSSEL, SPECTACLECASE, SNUFFBOX MUSSEL, SHEEPNOSE MUSSEL, PALID STURGEON.

20. NO NON-STORM WATER DISCHARGES PROPOSED.

21. NO DEWATERING METHODS PROPOSED.

CITY OF FLORISSANT

955 RUE ST. FRANCIS

FLORISSANT, MO 63031

SWPPP AND ALL LAND DISTURBANCE PERMITS

WILL BE VIEWABLE ONSITE AT THE

CONSTRUCTION TRAILER.

5.

11. TABLE OF BEST MANAGEMENT PRACTICES (BMP'S) QUANTITIES

TABLE 1- LIST OF BEST MANAGEMENT PRACTICES

KOCH PARK

KOCH PARK

2302 CHARBONIER ROAD

FLORISSANT, MO 63031

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CHARBONIER ROAD (WIDTH VARIES)

10'± 12"Ø CPP @ 1.78%

PROJECT LIMITS

PROJECT LIMITS

BMP RESERVE AREA 'A'

AMENDED SOILS

10' MIN. WIDTH (6837 SF)

BMP RESERVE AREA 'E'

AMENDED SOILS

20' WIDE (3906 SF)

BMP RESERVE AREA 'D'

AMENDED SOILS

10' WIDE (2487 SF)

BMP RESERVE AREA 'B'

AMENDED SOILS

10' WIDE (467 SF)

PROJECT LIMITS

BMP RESERVE AREA 'C'

AMENDED SOILS

10' WIDE (271 SF)

NOTE: SILTATION CONTROL FENCE REQUIRED ALONG THE ENTIRE LENGTH OF THE

CHARBONIER RD. FRONTAGE, INSIDE THE PROJECT / DISTURBANCE LIMITS INDICATED (APPROX.

900 LF). SILTATION CONTROL NOT SHOWN ON THESE PLANS FOR CLARITY PURPOSES.

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40'± 10"Ø CPP @ 2.0%

(PRIVATE)

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

LIMITS OF MSD DISTURBANCE (TYP)

LIMITS OF MSD DISTURBANCE (TYP)

PROJECT LIMITS

BMP RESERVE AREA 'F'

AMENDED SOILS

(7607 SF)

BMP RESERVE AREA 'G'

AMENDED SOILS

(2867 SF)

LIMITS OF MSD

DISTURBANCE

LIMITS OF MSD DISTURBANCE

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PROPOSED BMP DRAINAGE AREA MAP

ter ras pec

26MSD-00157 - BASE MAP-07L

NEW IMPERVIOUS AREA SHEET FLOW TO

FILTER STRIP IN AMENDED SOILS

DISTURBED AREA THIS DEVELOPMENT

AMENDED SOILS

FL567.0±

FL564.0±

FL565.5±

380'± 6" SOLID SCH 40 PVC @ 0.79%

FL563.6±

FL565.5±FL564.4±

FL565.0±

FL564.5±

FL568.5±

FL568.5± FL568.5±

FL568.5±

FL568.5±

FL569.0± FL569.0± FL569.0±

FL569.0± FL569.5±

FL569.5±

FL569.5±

FL569.5± FL570.0±

FL570.0±

FL570.0± FL570.0±

FL565.5±

4" Ø

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PV

C

(T

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266'± (TOTAL LENGTH) 6" SOLID SCH 40 PVC @ 0.71%204'± (TOTAL LENGTH) 6" SOLID SCH 40 PVC @ 0.60%

FL569.0±

FL568.5±

FL569.0±

FL569.5±

FL569.5± FL570.0±

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

FL564.2±

DAYLIGHT

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FL569.0±

FL569.0± FL569.0±

FL569.0±

FL569.25±

FL569.25± FL569.5± FL569.5±

FL569.5± FL569.75±

FL569.75±

FL569.75±

FL570.0± FL570.0±

FL570.0±

FL570.0± FL570.25±

4" Ø

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ER

FO

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PV

C

(T

YP

FL569.25±

FL569.0±

FL569.5±

FL569.5±

FL570.0± FL570.25±

FL563.6±

DAYLIGHT

PROJECT LIMITS

LIMITS OF MSD DISTURBANCE (TYP)

LIMITS OF MSD DISTURBANCE (TYP)

LIMITS OF MSD DISTURBANCE

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1-1/2"

A1

1-1/2"

A3

1-1/2"

A4

1-1/2"

A6

1-1/2"

A10

1-1/2"

A2

1-1/2"

A5

1-1/2"

A8

1-1/2"

A9

1-1/2"

A7

2"

2"

2"

2"

2"

2"

2"

2"

1" 1"

1" 1"

1" 1"

1"

1"

1"

1"

1" 1"

1"

1"

1" 1"

1"

1"

1"

1"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

2"

2"

2"

2"

2"

2"

2"

2"

2"

1" 1"

1"

1"

1" 1"

1"

1"

1"

1"

1" 1"

1"

1"

1"1"

1"

1"

1"

1"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1 1/4"

1-1/2"

B1

1-1/2"

B2

1-1/2"

B3

1-1/2"

B4

1-1/2"

B5

1-1/2"

B6

1-1/2"

B7

1-1/2"

B8

1-1/2"

B9

1-1/2"

B10

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

TO EXIST. 4" PVC WATER

LINE - LOCATION APPROX.

APPROX. LOCATION OF

EXIST. 4" PVC WATER LINE

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PROJECT LIMITS

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26MSD-00157 - BASE MAP-07L

NOTE: UNDERGROUND FACILITIES, STRUCTURES, AND UTILITIES HAVE BEEN PLOTTED FROM BEST

AVAILABLE RECORDS, THEREFORE THE RELATIONSHIP BETWEEN PROPOSED WORK AND EXISTING

FACILITIES, STRUCTURES, AND UTILITIES MUST BE CONSIDERED APPROXIMATE, AND IT IS THE

CONTRACTORS RESPONSIBILITY TO DETERMINE THEIR EXACT LOCATION AND THE EXISTENCE OF ANY

NOT SHOWN.

IRRIGATION LEGEND

1-1/2"

A1

IRRIGATION GENERAL NOTES

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26MSD-00157 - BASE MAP-07L

ALT. #2 - Sand Base under Sod

ALT. #3 - Field Underdrain Systems

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CHARBONIER ROAD (WIDTH VARIES)

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

NOTE: SILTATION CONTROL FENCE REQUIRED ALONG THE ENTIRE LENGTH OF THE

CHARBONIER RD. FRONTAGE, INSIDE THE PROJECT / DISTURBANCE LIMITS INDICATED (APPROX.

900 LF). SILTATION CONTROL NOT SHOWN ON THESE PLANS FOR CLARITY PURPOSES.

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PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

LIMITS OF MSD DISTURBANCE (TYP)

LIMITS OF MSD DISTURBANCE (TYP)

PROJECT LIMITS

LIMITS OF MSD

DISTURBANCE

LIMITS OF MSD DISTURBANCE

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H

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CHARBONIER ROAD (WIDTH VARIES)

10'± 12"Ø CPP @ 1.78%

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

NOTE: SILTATION CONTROL FENCE REQUIRED ALONG THE ENTIRE LENGTH OF THE

CHARBONIER RD. FRONTAGE, INSIDE THE PROJECT / DISTURBANCE LIMITS INDICATED (APPROX.

900 LF). SILTATION CONTROL NOT SHOWN ON THESE PLANS FOR CLARITY PURPOSES.

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40'± 10"Ø CPP @ 2.0%

(PRIVATE)

PROJECT LIMITS

PROJECT LIMITS

PROJECT LIMITS

LIMITS OF MSD DISTURBANCE (TYP)

LIMITS OF MSD DISTURBANCE (TYP)

PROJECT LIMITS

LIMITS OF MSD

DISTURBANCE

LIMITS OF MSD DISTURBANCE

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26MSD-00157 - BASE MAP-07L

DA1

DA1

SCALE: 1"=

5050 25 100

50'

EXISTING ON-SITE (PROJECT AREA) DRAINAGE QUANTITY

15 YEAR, 20 MIN STORM

PI (PERV) = 1.70

PI (IMPERV) = 3.54

TOTAL EXISTING PERVIOUS - DA1 (3.06 cfs) + DA2 (6.60 cfs) + DA3 (0.48 cfs) + DA4 (0.31) + DA5 (0.25) = 10.70 cfs

TOTAL EXISTING IMPERVIOUS - DA1 (0.00 cfs) + DA2 (0.00 cfs) + DA3 (0.04 cfs) + DA4 (0.61) + DA5 (0.60) = 1.25 cfs

TOTAL EXISTING Q 11.95 cfs

PROPOSED ON-SITE (PROJECT AREA) DRAINAGE

QUANTITY

15 YEAR, 20 MIN STORM

PI (PERV) = 1.70

PI (IMPERV) = 3.54

TOTAL PROPOSED PERVIOUS - DA1 (2.91 cfs) + DA2 (6.46 cfs) + DA3 (0.34 cfs) + DA4 (0.60 cfs) + DA5 (0.41 cfs) = 10.72 cfs

TOTAL PROPOSED IMPERVIOUS - DA1 (0.32 cfs) + DA2 (0.35cfs) + DA3 (0.25 cfs) + DA4 (0.00cfs) + DA5 (0.28 cfs) = 1.20 cfs

TOTAL PROPOSED Q 11.92 cfs

SCALE: 1"=

5050 25 100

50'

I. EARTHWORK

1. PROJECT CONDITIONS

EXISTING UTILITIES: LOCATE EXISTING UNDERGROUND UTILITIES IN AREAS OF EXCAVATION WORK. IF UTILITIES ARE INDICATED TO

REMAIN IN PLACE, PROVIDE ADEQUATE MEANS OF SUPPORT AND PROTECTION DURING EARTHWORK OPERATIONS.

SHOULD UNCHARTED OR INCORRECTLY CHARTED, PIPING OR OTHER UTILITIES BE ENCOUNTERED DURING EXCAVATION, CONSULT

UTILITY OWNER IMMEDIATELY OR DIRECTIONS. COOPERATE WITH OWNER AND UTILITY COMPANIES IN KEEPING RESPECTIVE

SERVICES AND FACILITIES IN OPERATION. REPAIR DAMAGED UTILITIES TO SATISFACTION OF UTILITY OWNER.

PROTECTION OF PERSONS AND PROPERTY: BARRICADE OPEN EXCAVATIONS OCCURRING AS PART OF THIS WORK.

PROTECT STRUCTURES, UTILITIES, SIDEWALKS, PAVEMENTS, AND OTHER FACILITIES FROM DAMAGE CAUSED BY SETTLEMENT, LATERAL MOVEMENT, UNDERMINING, WASHOUT, AND OTHER HAZARDS CREATED BY EARTHWORK OPERATIONS.

PERFORM EXCAVATION BY HAND WITHIN DRIPLINE OF LARGE TREES TO REMAIN. PROTECT ROOT SYSTEMS FROM DAMAGE OR

DRY OUT TO THE GREATEST EXTENT POSSIBLE. MAINTAIN MOIST CONDITION FOR ROOT SYSTEM AND COVER EXPOSED

ROOTS WITH MOISTENED BURLAP.

2. SOIL MATERIALS

SUBBASE MATERIAL: NATURALLY OR ARTIFICIALLY GRADED MIXTURE OF NATURAL OR CRUSHED GRAVEL, CRUSHED STONE, CRUSHED SLAG AND NATURAL OR CRUSHED SAND.

BACKFILL AND FILL MATERIALS: SATISFACTORY SOIL MATERIALS FREE OF CLAY, ROCK OR GRAVEL LARGER THAN 2 INCHES IN ANY

DIMENSION, DEBRIS, WASTE, FROZEN MATERIALS, VEGETATION AND OTHER DELETERIOUS MATTER.

3. EXCAVATION

EARTH EXCAVATION INCLUDES EXCAVATION OF PAVEMENTS AND OTHER OBSTRUCTIONS VISIBLE ON SURFACE; UNDERGROUND

STRUCTURES, UTILITIES AND OTHER ITEMS INDICATED TO BE DEMOLISHED AND REMOVED; TOGETHER WITH EARTH AND OTHER

MATERIALS ENCOUNTERED THAT ARE NOT CLASSIFIED AS ROCK.

4. DEWATERING

PREVENT SURFACE WATER AND SUBSURFACE OR GROUND WATER FROM FLOWING INTO EXCAVATIONS AND FROM FLOODING

PROJECT SITE AND SURROUNDING AREA.

DO NOT ALLOW WATER TO ACCUMULATE IN EXCAVATIONS. REMOVE WATER TO PREVENT SOFTENING OF FOUNDATION BOTTOMS, UNDERCUTTING AND FOUNDATIONS. PROVIDE AND MAINTAIN PUMPS, WELL POINTS, SUMPS, SUCTION AND DISCHARGE

LINES AND OTHER DEWATERING SYSTEM COMPONENTS NECESSARY TO CONVEY WATER AWAY FROM EXCAVATIONS.

ESTABLISH AND MAINTAIN TEMPORARY DRAINAGE DITCHES AND OTHER DIVERSIONS OUTSIDE EXCAVATION LIMITS TO CONVEY

RAINWATER AND WATER REMOVED FROM EXCAVATIONS TO COLLECTING OR RUNOFF AREAS. DO NOT USE TRENCH

EXCAVATIONS AS TEMPORARY DRAINAGE DITCHES.

5. STORAGE OF EXCAVATED MATERIALS

STOCKPILE EXCAVATED MATERIALS ACCEPTABLE FOR BACKFILL AND FILL WHERE DIRECTED. PLACE, GRADE AND SHAPE STOCKPILES

FOR PROPER DRAINAGE.

LOCATE AND RETAIN SOIL MATERIALS AWAY FROM EDGE OF EXCAVATIONS. DO NOT STORE WITHIN DRIP LINE OF TREES INDICATED

TO REMAIN.

6. EXCAVATION FOR STRUCTURES

CONFORM TO ELEVATIONS AND DIMENSIONS SHOWN WITHIN A TOLERANCE OF PLUS OR MINUS 0.10 FOOT AND EXTENDING A

SUFFICIENT DISTANCE FROM FOOTINGS AND FOUNDATIONS TO PERMIT PLACING AND REMOVAL OF CONCRETE FORM WORK, INSTALLATION OF SERVICES AND OTHER CONSTRUCTION AND FOR INSPECTION.

EXCAVATIONS FOR FOOTINGS AND FOUNDATIONS: DO NOT DISTURB BOTTOM OF EXCAVATION. EXCAVATE BY HAND TO FINAL

GRADE JUST BEFORE CONCRETE REINFORCEMENT IS PLACED. TRIM BOTTOMS TO REQUIRED LINES AND GRADES TO LEAVE

SOLID BASE TO RECEIVE OTHER WORK.

7. EXCAVATION FOR PAVEMENTS

CUT SURFACE UNDER PAVEMENTS TO COMPLY WITH CROSS-SECTIONS, ELEVATIONS AND GRADES AS INDICATED.

8. COLD WEATHER PROTECTION

PROTECT EXCAVATION BOTTOMS AGAINST FREEZING WHEN ATMOSPHERIC TEMPERATURE IS LESS THAN 35 DEGREES

9. BACKFILL AND FILL

GENERAL: PLACE SOIL MATERIAL IN LAYERS TO REQUIRED SUBGRADE ELEVATIONS FOR EACH AREA CLASSIFICATION LISTED BELOW.

UNDER GRASSED AREAS, USE SATISFACTORY EXCAVATED OR BORROW MATERIAL.

UNDER WALKS AND PAVEMENTS, USE SUBBASE MATERIAL, SATISFACTORY EXCAVATED OR BORROW MATERIAL OR A

COMBINATION.

UNDER STEPS, USE SUBBASE MATERIAL.

BACKFILL EXCAVATIONS AS PROMPTLY AS WORK PERMITS, BUT NOT UNTIL COMPLETION OF THE FOLLOWING:

ACCEPTANCE OF CONSTRUCTION BELOW FINISH GRADE.

REMOVAL OF CONCRETE FORMWORK.

REMOVAL OF TRASH AND DEBRIS FROM EXCAVATION.

10. PLACEMENT AND COMPACTION

GROUND SURFACE PREPARATION: REMOVE VEGETATION, DEBRIS, OBSTRUCTIONS AND DELETERIOUS MATERIALS FROM GROUND

SURFACE PRIOR TO PLACEMENT OF FILLS. PLOW STRIP, OR BREAK UP SLOPED SURFACES STEEPER THAN 1 VERTICAL TO 4

HORIZONTAL…