https://www.foundationatderuyterlake.org/home-1 daily 1.0 2026-04-02 https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1582048915615-FRFZBE9RR2OWJKUJFU5P/deruyterlakeheader500x291+copyemail.jpg Home https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1582378771607-UR05NFON113DUHYIJT24/DJI_0176.JPG Home https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1582379527636-SF8F3Q4CS01W4CFRZ7PA/tlpf+%281%29.jpg Home https://www.foundationatderuyterlake.org/concerns daily 0.75 2021-02-14 https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584799979764-EM8SV21HZ0T2ACDSMPB5/curlypondweed.jpg Concerns Curly Pondweed https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584800021029-UUPOC1BBD7QMFO7EV19F/eurmilfoil.jpg Concerns Eurasian Milfoil https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584800058428-073UMTSC7CJQG75PMDL2/starrystonewort.jpg Concerns Starry Stonewort https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584734008752-M3GKTB2IM6YJO34VD6LJ/zebramussel.jpg Concerns Zebra Mussel https://www.foundationatderuyterlake.org/updates daily 0.75 2026-04-02 https://www.foundationatderuyterlake.org/missionstatement daily 0.75 2020-03-20 https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584733769669-FW7XQH2QXMU5L1FATXAB/13439114_1132115370160678_3508947887659794429_n.jpg Mission Statement The Tioughnioga Lake Preservation Foundation is a tax-exempt 501(c)(3) corporation whose mission is to preserve, protect and enhance the environmental integrity of Tioughnioga (DeRuyter) Lake and its watershed. https://www.foundationatderuyterlake.org/projects daily 0.75 2020-07-23 https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584801400211-1YEV1LRK3MZDHA277X2R/PreventAquaticInvasiveSpeciesCleanDrainDrySign-2.jpg Projects https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1595501252059-XP0CDCSFSXPP3A4R99ZZ/IMG_0832.JPG Projects Tom Chartrand, TLPF Treasurer and builder of the portable boat cleaning station https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584734914038-G3JWWKAYDZPWM0Q2UPCR/IMG_1764.JPG Projects https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584735011284-2Y001S02QWEJG8KRIJIH/IMG_1769.JPG Projects https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584627328696-RLGVV41G4E6EELHA88GN/havester.jpg Projects https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1584798266992-P557FOXL48Y81OSHYP44/20190805_090332.jpg Projects https://www.foundationatderuyterlake.org/pleasedonate daily 0.75 2025-03-05 https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1582051049639-O5EWHSHC300KJH8D31HE/thanks.jpg Please Donate https://www.foundationatderuyterlake.org/partners daily 0.75 2020-04-07 https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1582048427868-FO1IVOUS801NY0G43B48/fireworks+%282%29.jpg Partners https://www.foundationatderuyterlake.org/contact1 daily 0.75 2025-07-08 https://images.squarespace-cdn.com/content/v1/5d893ff9ce9feb09f3453c58/1582049681948-39KMK5UA04WCJJ0M99HG/CorneNewfyilogo.jpg Contact https://www.foundationatderuyterlake.org/501c daily 0.75 2020-02-25 https://www.foundationatderuyterlake.org/watershedmanagement daily 0.75 2025-07-10