"operator"=>"Waterschap Hollandse Delta","ref"=>"03506ST"
"material"=>"concrete","operator"=>"Gemeente Hoeksche Waard","ref"=>"30775ST"
"material"=>"concrete","operator"=>"Waterschap Hollandse Delta","ref"=>"03504ST"
"material"=>"brick","operator"=>"Waterschap Hollandse Delta","ref"=>"29938ST"
"operator"=>"Gemeente Hoeksche Waard","ref:ruian:addr"=>"30772ST"
"material"=>"concrete","operator"=>"Gemeente Hoeksche Waard","ref"=>"30773ST"
"material"=>"wood","operator"=>"Gemeente Hoeksche Waard","ref"=>"02509ST"
"material"=>"steel;wood","operator"=>"Gemeente Hoeksche Waard","ref"=>"30774ST"
"operator"=>"Waterschap Hollandse Delta","ref"=>"29541ST"
"operator"=>"Waterschap Hollandse Delta","ref"=>"45685ST"
"operator"=>"Waterschap Hollandse Delta","ref"=>"03507ST"