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  2. Rain gutter - Wikipedia

    en.wikipedia.org/wiki/Rain_gutter

    A rain gutter, eavestrough, ... [11] The pitch of a pitched roof is determined by the construction material of the covering. For slate this will be at 25%, for ...

  3. Stormwater fee - Wikipedia

    en.wikipedia.org/wiki/Stormwater_fee

    About 73 percent of cities with a population of 100,000 or more apply a separate calculation method, which divides the cost of sewage into the rainwater cost. Usually, Germany calculates concrete, asphalt, and building roofs as impervious areas and charges an annual fee of $2.6 per m 2. Builders are installing rainfall storage tank and ...

  4. Box gutter - Wikipedia

    en.wikipedia.org/wiki/Box_gutter

    A box gutter, internal gutter, parallel gutter, or trough gutter is a rain gutter on a roof usually rectangular in shape; it may be lined with EPDM rubber, metal, asphalt, or roofing felt, and may be concealed behind a parapet or the eaves, or in a roof valley. [1] [2] Box gutters are essentially placed between parallel surfaces, as in a valley ...

  5. Downspout - Wikipedia

    en.wikipedia.org/wiki/Downspout

    The purpose of a downspout is to allow water from a gutter to reach the ground without dripping or splashing down the building structure. Downspouts are usually vertical and usually extend down to ground level , although may be routed at an angle to avoid architectural features and may discharge onto an intermediate roof.

  6. Urban runoff - Wikipedia

    en.wikipedia.org/wiki/Urban_runoff

    Roof runoff contributes high levels of synthetic organic compounds and zinc (from galvanized gutters). Fertilizer use on residential lawns, parks and golf courses is a measurable source of nitrates and phosphorus in urban runoff when fertilizer is improperly applied or when turf is over-fertilized. [3] [5]

  7. Storm drain - Wikipedia

    en.wikipedia.org/wiki/Storm_drain

    Storm drain grate on a street in Warsaw, Poland Storm drain with its pipe visible beneath it due to construction work. A storm drain, storm sewer (United Kingdom, U.S. and Canada), highway drain, [1] surface water drain/sewer (United Kingdom), or stormwater drain (Australia and New Zealand) is infrastructure designed to drain excess rain and ground water from impervious surfaces such as paved ...

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