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, , COMMONWEALTH OF VIRGINIA <br />uo,~, _„~,,, CovN~Y OF LOUDOUN <br />\ `i~ <br />~~~~ DEPARTMENT OF PUBLIC HEALTH <br />~~~ <br />Headquarters <br />209 Gibson St. NW <br />Leesburg, VA 22075 <br />Phone 703/777-0236 <br />Fax 703/771-5393 <br />TDD 703/771-5352 <br />January 22, 1996 <br />Memo To: Linda Erbs-Nagy, Building & Developme t <br />From: Jeff Widmeyer, R. E.H.S. ~~ <br />Senior Environmental Health S ecialisit~~~ <br />p ~, <br />:~ <br />Re: Hydrogeological waiver request /Big Springs Hamlet / LCTM #40/4 <br />Environmental Health <br />748 Miller Drive, Suite E2 <br />Leesburg, VA 22075 <br />Phone 703/777-0234 <br />Fax 703-771-5023 <br />TDD 703!771-5352 <br />Staff has reviewed Emery and Garrett Groundwater, Inc.'s request to reduce or eliminate the <br />hydrogeological requirements in Chapter 6 of the FSM. The request is incomplete because <br />Chapter 6 requires a preliminary hydrogeological study to consider reducing or eliminating <br />the detailed hydrogeological requirements. However, in this case, we believe it is unnecessary <br />to further delay the applicant and have them submit a preliminary hydrogeological study. <br />The Health Department recognizes that there is a large amount of information in the <br />surrounding area and that generally the limestone conglomerate is a highly productive <br />aquifer. As you know, hamlets which propose to use individual wells on each lot have <br />problems other than finding sufficient water. These other problems generally relate to the <br />small size of the lots in a hamlet. The limestone conglomerate adds even more unique <br />problems that were demonstrated in the first Big Springs Hamlet and of which staff made <br />comments in our referral response. Some of these problems are already being experienced in <br />developed hamlets. These hamlets are having to adjust boundries to accommodate a well site <br />due to caverns (wells cannot be completed) and dry wells, having to adjust the building <br />envelope which has caused significant delays and headaches for people attempting to build <br />due to rezoning and other zoning issues. Chapter 1040 of the Codified Ordinance does not <br />allow individual wells to be constructed in open space thus greatly reducing the number of <br />potential well sites. <br />Therefore, we recommend that this request to reduce or eliminate the detailed <br />hydrogeological study be denied. We further strongly recommend the applicant develop an <br />onsite community water supply. We feel the community supply is appropriate because <br />1. These systems are safer from a public health perspective <br />due to continued monitoring requirements. <br />1'~DHOF HEA MHNT <br />