Gävle kommuns dagvattenpolicy - Gästrike Vatten AB
Gävle kommuns dagvattenpolicy - Gästrike Vatten AB
Gävle kommuns dagvattenpolicy - Gästrike Vatten AB
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Innehållsförteckning<br />
INLEDNING...............................................................................................................................................4<br />
Läsanvisning ......................................................................................................................................5<br />
Syfte ....................................................................................................................................................6<br />
1. POLICY ..................................................................................................................................................7<br />
<strong>Gävle</strong> kommun och dagvattnet ..........................................................................................................7<br />
Principer för dagvattenhantering ......................................................................................................8<br />
Principer vid nyexploatering på tomtmark......................................................................................................8<br />
Principer i befintliga 9bebyggda områden......................................................................................................9<br />
Principer på allmän plats, parker, grönytor, torg och lekplatser .....................................................................9<br />
Principer för allmän plats, gator, vägar, parkeringar.....................................................................................10<br />
Ledningssystem för dagvatten ......................................................................................................................11<br />
Undantag från principerna ............................................................................................................................11<br />
Vem har ansvar för dagvattenhanteringen i <strong>Gävle</strong> kommun? .......................................................12<br />
Kommunens ansvar....................................................................................................................................13<br />
Kommunens ansvar i olika skeden ..................................................................................................14<br />
Ansvar Kommunstyrelse / Kommunledningskontor.....................................................................................14<br />
Ansvar Byggnads- och miljönämnd / Bygg och Miljö .................................................................................14<br />
Ansvar Affärsverks- & servicenämnd / <strong>Gävle</strong> <strong>Vatten</strong> ..................................................................................15<br />
Ansvar Tekniska nämnden / Tekniska kontoret............................................................................................15<br />
Ansvar övriga aktörer ......................................................................................................................16<br />
Ansvar privata fastighetsägare......................................................................................................................16<br />
Ansvar verksamhetsutövare..........................................................................................................................16<br />
2. BILAGA FÖRSLAG FORTSATT ARBETE ....................................................................................17<br />
Förslag till strategi......................................................................................................................................17<br />
3. BILAGA BAKGRUND ........................................................................................................................18<br />
Vad är dagvatten? ............................................................................................................................18<br />
Historik........................................................................................................................................................18<br />
Resurs och problem....................................................................................................................................19<br />
Vanligt förekommande begrepp i dagvattenhanteringen..............................................................21<br />
För mycket vatten.......................................................................................................................................21<br />
Magasin .......................................................................................................................................................21<br />
Hög grundvattenivå....................................................................................................................................21<br />
Ytbehov .......................................................................................................................................................22<br />
Ovidkommande vatten...............................................................................................................................22<br />
Förändrad vattenbalans.............................................................................................................................22<br />
Globala klimatförändringar ......................................................................................................................23<br />
Föroreningar...............................................................................................................................................23<br />
Drift, underhåll...........................................................................................................................................24<br />
Omhändertagande av sedimenterat slam .................................................................................................24<br />
Säkerhet.......................................................................................................................................................25<br />
Dagvattensituationen i <strong>Gävle</strong> -korta exempel från våren 2004 ......................................................26<br />
Kommunala styrdokument...............................................................................................................28<br />
Vision 2010 ..................................................................................................................................................28<br />
Lokala miljömål..........................................................................................................................................28<br />
4. BILAGA ÖVRIGT ...............................................................................................................................30<br />
ORDLISTA...............................................................................................................................................30<br />
LAGTEXT................................................................................................................................................33<br />
LITTERATURLISTA ..................................................................................................................................35<br />
NUVARANDE AVTAL MELLAN TEKNISKA KONTORET OCH GÄVLE VATTEN ............................................36<br />
Dagvattenpolicy2004 3
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