11-21-1991 Public Hearing and Regular Meeting of La Porte Planning and Zoning Commission

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( October 30, 1991 ( Outline Louisiana Chemical Stormwater Runoff Issues Background: CLP and HCFCD through an interlocal agreement prepared and accepted a Master Drainage Plan for the F101 watershed. . . CLP letter, dated July 17, 1987, to HCFCD expressed concern for Mure development of approximately 30:t acres ot undeveloped light industrial property . HCFCD letter, dated July 23, 1987, pointed out that objectives of the study and proposed interim improvements would not include improvements (or detailed recommendations) to undeveloped property. Note: That Louisiana Chemical's proposed 12.5:t acre tract and the 30 :t acre tract were undeveloped at time of study. Louisiana Chemical filed a Major Development Plan to develop 25.4:t acre tract. . . . Approximately 13 acres have previously been developed; the plan indicates future additions of a warehouse, office and parking. The 13 acres drain to the northwest and is pumped to area between the railroad right-ot-way and Old La Porte Road. . The development currently proposed is approximately 12.5:t acres. . The F101 watershed study was based on proposed interim improvements to channel F101-Q1-Q0 and eventually a lateral channel F101-06-Q2 constructed to the southwest corner of the Louisiana Chemical 25.4:t acre tract. . Since interim F101 improvements have not been completed direct stormwater runoff from the Louisiana Chemical site will not be allowed into the F101 system. · Therefore, HCFCD (reinforced by CLP Development Ordinance) is requiring on site detention ot the runoff. The criteria is supplied by HCFCD and is: . (Information from HCFCD) · Once the F101 improvements are made up to the southwest corner ot Louisiana Chemical site the detention pond is no longer necessary and may be reclaimed for other uses. · City (and HCFCD) is concerned with the ability to provide drainage for other properties into the F101 system that would otherwise be landlocked.