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PAVEMENT
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NOTES:
1. The site ·
2 .. IS currently vacanl
. Zomng IS HI Heavy Industrial
3. The site falls within the C.. ·
4. The site falls within flood ity of Spnngfield Urban Growth Bo d
#41039C1161 F, Doted :U~e ~d f1oodzone AE os per RRt/~o;ry.
5. There are no LID facilities . .' 1999.
6. Fire hydrant locations within 600 feet of the site
7. So., typ are as shown ·
I es for this site are:I79 McBee. ·
Silty Clay Loam
126 Chehalis Silty Clay L
8. Water Table is at >6.0'. #43C DiXOIlVl1Ie-Philomot:~; I.
aze air Complex
LEGEND:
I~BrlUI ! IUThI
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fM$J\w;~URBAN GROwrH BOUNDARY
· CON~ I t<UCnON UMITS
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SHEET INDEX
C1. SITE ASSESSMENT PLAN
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CJ. LAND & D:'~GfDRAINAGE PLAN
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GRADING NOTES:
t.:'IIMATED CUT VOLUMES = 1,600 CY
1/ II " __- _-;' , ' ......,_'_ ___'.,...>- ___ __ ~ _' ES11MAIW All VOWMES = 4,200 CY - _ _ - I .....' - I '~' J
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NOTE:
Refer to Landscape. Plans sheets L4 and L5 for
planting materials and locations for detention area
and bio-swale.
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NOTES:
1. No Wastewater service is proposed for the site.
2. Electrical service will be provided from the existing overhead
. line.
3. Drainage swale area shall be planted per Landscape Plans. All
remaining areas within the construction limits shall be gravel.
Width Varies
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GENERAL NOTES:
1. Prior to any ground disturbance on the site one inspection with LDAP staff is required. Issuance of this plan does not relieve the permit holder and or the
contractor from all other permitting requirements. Prior to beginning construction activities, all other necessary approvals shall be obtained.
2. The erosion and sediment control measures shown on this Erosion Sediment Control Plan (ESCP) are the minimum requirements for anticipated site
conditions. During the construction period, these measures shall be upgraded as needed for unexpected storm events and to ensure that sediment and
sediment-laden water does not leave the .site. A copy of this ESCP must be kept on site. Changes to the ESCP must also be submitted in the form of an
Action Plan to DEQ or its Agent for approval. (Schedule A.7.f.)
15. Approval of this Erosion Sediment Control Plan (ESCP) does not constitute an approval of permanent road or drainage design systems (e.g. size and location
of roads, pipes, channels, retention facilities, utilities, etc.).
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16. The erosion and sediment control measures shown on this Erosion Sediment Control Plan (ESCP) must be constructed in conjunction with all clearing and
grading activities in such a manner as to insure that sediment and sediment laden water does not enter the stormwater system, roadways, or violate applicable
water standards.
17. All work performed by utility companies for this project, including placement of appropriate erosion and sediment control measures, finished grading,
seeding, mulching and clean up is governed by the conditions and requirements of this erosion control permit. The assurance that these requirements are met
will be the responsible of the permit holder.
18. Soil stockpiled during the wet weather season (October 1 through April 30) shall be covered with polyethylene plastic sheeting and secured tightly in place
with an approved anchoring system, to ensure the stockpile is not exposed to rain or creating sediment laden run-off. Energy dissipaters and other control
measures may be required to slow runoff.
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3. The implementation of the ESCP and construction, maintenance, replacement, and upgrading of the erosion and sediment control measures is the responsibirlty of
the permit registrant until all construction is completed and approved by the local development agency and vegetation / landscaping is established. The permit
registrant shall be responsible for maintenance after the lots are approved, until the lots are sold and the 1200-C permit is terminated. (Schedule A.4.a.) and
(Schedule 0.3.)
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4. The implementation of the ESCP and the construction, maintenance, replacement, and upgrading of the erosion and sediment control measures is the
responsibility of the permit holder and or the contractor until all construction is completed and accepted and vegetation / landscaping is established.
5. The boundaries of the clearing limits shown on this plan shall be clearly flagged in the field by the engineer prior to construction. During the construction
period, no disturbance beyond the flagged clearing limits shall be permitted. The flagging shall be maintained by the applicant / contractor for the duration of
construction.
19. Stabilized construction entrances / exits shall be installed at the beginning of construction and maintained for the duration of the project. Additional
measures may be required to insure that all paved areas are kept clean for duration of the project.
20. Catch basin / curb inlets shall be protected by an approved method to prevent sediments from entering the stormwater system. Approved barrier methods
include filter fabric inlet barriers, block and gravel inlet barriers, gravel and wire mesh inlet barriers, and mesh bags filled with wood chips.
21. Temporary grass measures must be fully established by October 1 or additional cover measures will have to be implemented until adequate grass coverage
is achieved.
SCALE: 1-=80'
80'
160'
80'
o
6. The erosion and sediment control measures on active sites shall be inspected and maintained at least once every seven {7} calendar days, before weekends
at hollidays and within the 24 hours after any storm event of greater than 0.5 inches of rain per 24-hour period. Measures shall be inspected by contractor
after each rainfall and at least daily during prolonged rainfall. Any required repairs or adjustments shall be made immediately.
7. All erosion and sediment control measures shall be protected from damage at all times. Control measures shall remain in place until permanent
re-vegetation has been stabilized. Any measure that is damaged or destroyed shall be repaired or replaced immediately.
8. Any areas of exposed soils, including roadway embankment, that will not be disturbed for two days during the wet season (October 1 to April 30) or seven
days during the dry season (May 1 to September 30) shall be immediately stabilized with an approved ECS method (seeding at mulching with straw, bark,
compost, or plastic covering, etc.)
9. Street sweeping shall be performed as needed or when directed by the City inspector to insure public right-of-ways are kept clean and free of debris.
10. When trucking saturated soils from the site, either water-tight trucks shall be used or loads shall be drained on site until dripping has been reduced to no
more than one gallon per hour. Sediment laden water will not be allowed to enter the stormwater system.
11. Extracted ground water from excavated trenches shall dispose of in a suitable manner without damage to adjacent property. Dewatering systems shall be
designed and operated so as to prevent removal of the natural soils and so that the groundwater level outside the excavation is not reduced to the extent that
would damage or endanger adjacent structures or property. Approval of the system does not guarantee that it will meet the outcomes or be acceptable for use
in all situations. Modifications to the system will be required if the compliance can not to met. At no time will sediment laden water be allowed to leave the
construction site.
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22. Issuance of the erosion permit does not relieve the permit holder from all other permitting requirements. Prior to beginning construction activities, all other
necessary approvals shall be obtained.
23. BMPs that will be used to prevent or minimize stormwater from being exposed to pollutants from spills, no discharge of concrete truck wash water, vehicle and equipment
cleaning, vehicle and equipment fueling, maintenance, and storage, other cleaning and maintenance activities, and waste handling activities. These pollutants include fuel,
hydraulic fluid, and other oils from vehicles and machinery, as well as debris, leftover paints, solvents, and glues from construction operations. (Schedule A.7.e.i.(2))
24. Solid Waste and Hazardous Materials Management. Follow project written spill prevention and response procedures, employee training on spill prevention and proper disposal
procedures; regular maintenance schedule for vehicles and machinery; and material delivery and storage controls, training and signage, material use, covered storage areas for
waste and supplies. (Schedule A.7.e.iii(3))
COMPOST FILl t.t< BERM
25. The permittee. must properly manage hazardous wastes, used oils, contaminated soils, concrete waste, sanitary waste, liquid waste, or other toxic substances discovered or
generated during construction and meet all state and federal regulations and approvals. (Schedule A.7.e. iii.(4))
26. Sediment must be removed from behind Bio Bags and other barriers it has reached a height of two (2) inches and before BMP removal. (Schedule A.7.f.n.(2))
27. Removal of trapped sediment in a Sediment Basin or Sediment Trap or Catch Basins must occur when the sediment retention capacity has been reduced by fifty (50)~
and at completion of project. (Schedule A.7.f.n.(3) at (4))
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12. A supply of materials necessary to meet compliance and implement the LDAP or other best management erosion practices under all weather conditions shall
be maintained at all times on the construction site.
DISTURBED GROUND DUE TO
ONSITE CONSTRUCTION.
28. Should all construction activities cease for thirty days or more, the entire site must be temporan1y stabilized using vegetation or a heavy mulch layer, temporary seeding,
or other method. (Schedule A.8.a.)
13. No hazardous substances, such as paints, thinners, fuels and other chemicals shall be released onto the site, djacent properties, or into water features, the
City's storm water system, or related natural resources.
29. Should construction activities cease for fifteen (15) days or more on any significant portion of a construction site temporary stabilization is required for that portion of the
site with straw, compost, or other tackified covering that prevent soil or wind erosion until work resumes on that portion of the site. (Schedule A.8.b.)
30. Daily inspections when rainfall and runoff occurs of the BMPs and discharge outfalls must be the project ESCP Inspector. These inspections and observations must be
recorded in a log that is available on site. (Schedule A.6.b.i.) at (Schedule B.1.b(l))
31. All ESCP controls and practices must be inspected visually once to ensure that BMPs are in. working . order · prior to the site becoming inactive or in anticipation of site
inaccessibility and must be inspected visually once every two (2) weeks during inactive periods greater than seven {7} consecutive calendar days. (Schedule B. 1 .b.(2)-{3))
36- MIN
14. The ESC facilities shall be inspected by the contractor and maintained to ensure continued proper functioning. Written records shall be kept of weekly
reviews of the ESC facilities during the wet season (October 1 to April 30) and of monthly reviews during the dry season (May 1 to September 30).
GENERAL ~rr~ INFORMATION
1. lYPE OF DEVELOPMENT: INDUSTRIAL
SEDIM~N~A~ION CONTRO~
CO=vlPOST FI~T~~~ BE~~~vI
2. CON:> I t<UCTlON ACTMlY WILL CONSIST OF:
- GRAVEL ROAD AND DRAINAGE FACILITIES
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3. PROPOSED CON~ I t<UCTlON SCHEDULE:
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BEGINNING DATE:
COMPLETION DATE:
4. DEVELOPMENT AREAS
TOTAL AREA:
PERCENT OF ~11l:. DISTURBED
SEt'Il:.MBER 2008
NOVEMBER 2008
9.74 ACRES
CON~ I KUCTlON UMII t.lJ
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5. SOIL lYPES ON THIS SITE ARE 196 NEWBERG LOAM.
C) CONSfKUCTION NOTES
175. CON~IKUCT CRUSHED ROCK ACCESS PAD. PROVIDE 6- MINIMUM
D~I H 2--3- CRUSHED ROCK COMPACTED TO 90~ MAXIMUM
DENSITY. PAD SHAlL BE 15' MIN WIDTH BY 100' LONG.
176. CONSTRUCT SEDIMENTATION CONTROL REXIUS FORt~1 BY-PRODUCT
COMPOST FILTER BERM.
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