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potential for causing a pollution hazard if used on a regular <br />basis. I would recommend that if you intend to continue the use <br />of the plumbing in these buildings, that a new system to serve <br />both buildings be constructed to current standards on the south <br />facing slo, c in front of those buildings. This would, of course, <br />require soil testing and the normal design procedure. I would <br />also note that the caretaker now uses the Ballantine cabin <br />system, which is only 15' from the cliff. I would recommend that <br />that system be allowed to continue in use for a short period of <br />time for your convenience, say 45 days, during which time you <br />should consider whether you wish to install a new septic system <br />or remove plumbing from those buildings. <br />The Cook's cabin is served by a cesspool -type tank with no <br />visible pipe outlet. Since it is our impression that this <br />building is to be used for storage only at this time, but that <br />you may wish to retrofit that tank for future use, it would be <br />appropriate that at this time you replace the broken or missing <br />cover sections and allow that tank to remain in place unused for <br />the time being. <br />The tank to the north of the dining hall apparently was installed <br />to serve a dishwasher, but has never been connected. Again, that <br />tank can remain in place, but you should make sure that the cover <br />sections remain in place so that the tank does not become a <br />hazard. To the east of the dining hall, Mr. Peterson noted a <br />very large septic tank of unknown dimensions with a possible <br />outlet pipe that may discharge near the old Berg cabin site. <br />This system needs to be further investigated to determine its <br />size, condition, and design before we would allow its use. <br />Given the above, I would recommend to the City Council that only <br />the South Hill and Peanut Row toilet buildings be allowed to <br />continue in use for the time being, with the understanding that <br />while those systems are located so as to not pose any apparent <br />health or pollution hazard, their capacities are virt.ally <br />unknown and we cannot determine at what level of use they will <br />become a problem. Ultimately, you should plan on replacing these <br />two systems with systems conforming to current codes. <br />Regarding the well casing extont ion, we inspected that <br />installation on 4/26/88 and it would appear to meet the pertinent <br />code standards, being extended approximately 12" to 18" above <br />grade below the f loor of the dining hall. The pit surrounds <br />the top 10' to 15' of that casing should be filled with dirt, . <br />the pipes extending into the floorboard area should be protec a <br />from traffic that may loosen the piping. <br />