CUMMINS POWER GENERATION LTD.

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CUMMINS POWER GENERATION LTD.

COLUMBUS AVENUE, MANSTON

DRAINAGE STATEMENT

This statement is prepared to describe the proposed foul and surface water drainage from the above development, and should be read in conjunction with the drainage drawings.

1.0 Surface Water

1.I The proposed site will be substantially hard paved comprising building, external yard area, car park and access road.

1.2 The building roof and external paved areas will all be positively drained, thus minimising infiltration into the ground.

1.3 The building will drain via sealed rainwater downpipes, and the externals via gullies and channels.

1.4 Drainage from the external hard paving will pass through a 3 stage full retention interceptor prior to outfalling into the pond/swale/soakaway. As a precaution a geotextile fabric will be laid on the external works formation to intercept any slight seepage through the hard paving.

1.5 Surface water will outfall into the pond and then overflow into the swale/soakaways that have been previously installed to accept flows from this site.

2.0 Foul Water

2.1 Foul drainage will outfall via below ground gravity pipework to the existing private pump station adjacent to the site. The pump station has been previously designed and installed to accommodate foul flows from this site. The pump station discharges via a rising main to the Southern Water public sewers.

2.2 There are no vehicle wash facilities so a connection to the foul system will not be necessary.

2.3 Fuels and chemicals will not he stored on site.


	Thanet Ground Water Quality \| home Return to post and other links \| Thanet Ground Water Quality \| Thanet Ground Water Quality table \| Manston map \| Benzine \| From the China Gateway environmental report \| Xblocks \| Phases \| Source Protection Zones \| EA \| Environment Agency's Response \| My response to the Environment Agency \| My initial objection to the development \| Executive Director of East Kent Opportunities LLP \| Title 15 \| Title 16 \| CPRE Kent \| CPREKent2 \| Title 19 \| Title 20 \| Title 21 \| Environment Agency being difficult \| Information Request \| Letter to Doug 5.7.8 \| Natural England's comments \| complaint ref 1342 \| Title 33 \| power of the sea \| BRIEFING DOCUMENT FOR THANET DISTRICT COUNCILLORS \| More from the EA \| Southern Water discharge consent letter. \| INFRATIL LETTER \| Recommendation to the planning committee to approve \| Explosive \| Developers clarification of points raised at the planning meeting \| Doug Emails \| CUMMINS POWER GENERATION LTD. \| Title 47 \| voting \| Sericol Investigations \| Title 50 \| the history at Thor \| EA letter to KIA 19.12.08 \| EA letter to KIA 18.12.08 CUMMINS POWER GENERATION LTD. CUMMINS POWER GENERATION LTD. COLUMBUS AVENUE, MANSTON DRAINAGE STATEMENT This statement is prepared to describe the proposed foul and surface water drainage from the above development, and should be read in conjunction with the drainage drawings. 1.0 Surface Water 1.I The proposed site will be substantially hard paved comprising building, external yard area, car park and access road. 1.2 The building roof and external paved areas will all be positively drained, thus minimising infiltration into the ground. 1.3 The building will drain via sealed rainwater downpipes, and the externals via gullies and channels. 1.4 Drainage from the external hard paving will pass through a 3 stage full retention interceptor prior to outfalling into the pond/swale/soakaway. As a precaution a geotextile fabric will be laid on the external works formation to intercept any slight seepage through the hard paving. 1.5 Surface water will outfall into the pond and then overflow into the swale/soakaways that have been previously installed to accept flows from this site. 2.0 Foul Water 2.1 Foul drainage will outfall via below ground gravity pipework to the existing private pump station adjacent to the site. The pump station has been previously designed and installed to accommodate foul flows from this site. The pump station discharges via a rising main to the Southern Water public sewers. 2.2 There are no vehicle wash facilities so a connection to the foul system will not be necessary. 2.3 Fuels and chemicals will not he stored on site.