OHA Drinking Water Services
Contact Report Details
|PWS ID:||OR41 91551|
|PWS Name:||CALLAHANS MOUNTAIN LODGE|
|Who Was Contacted:||Mark Cleaner|
|Contacted By:||CIVIL WEST ENGINEERS, INC (DWP)|
|Assistance Type:||CIRCUIT RIDER ASSISTANCE|
Callahanís Restaurant is a ground water system with 9 springs (1 is offline) feeding into a collection system with a storage tank and chlorinator. Currently, the spring boxes are not completely sealed off to surface water intrusion.
Met with Owner on site to inspect the springs and spring boxes. Existing spring boxes consist of a concrete inground box with river rock to allow seepage of the springs and then outflows to the storage tank after being chlorinated. The concrete box is covered with a plastic irrigation control box and some epoxy caulking was used to attempt to seal and make water tight. Vegetation was observed growing inside of a few spring boxes (through the epoxy caulking), showing that they are not completely sealed.
The following are a couple of alternatives we recommend that could be implemented:
1. One simple solution could be to build up a clay or cement wall around the existing spring sources and place a gradation of rocks inside (larger ones on the bottom gradating to small gravel on top). Install a perforated and screened outlet pipe and overflow pipe within the front clay/cement wall. Clay sealing can be used to enclose any open access from critters. Hypalon could also be used to cover the top.
2. Another alternative could be to import a pre-manufactured product such as the Carolina Water Tank Water Collection System and Spring Box to carry and assemble on site. However, any material used that would come in contact with the incoming water supply would need to be NSF 61 approved.
These alternatives would need to be engineered and stamped by a licensed engineer.
If the springs are not completely sealed off to surface water, OHA considers them to be groundwater under the influence of surface water, requiring filtration treatment.
Follow-Up Actions Needed:
Funding may possibly be available through the Sustainable Infrastructure Project Planning (SIPP) funds to alleviate the costs