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Notes explain the regulatory use of HAT elevations for locating the upland edge of coastal wetlands under Maine’s Natural Resources Protection Act and Mandatory Shoreland Zoning Act.",{"@graph":63,"@context":119},[64,80,102],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":51,"@type":70,"position":76},"https://docshare.wps.com/template/general/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/highest-annual-tide-hat-levels-for-year-2018-maine-coast-deplw-hat-12018/571095/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/highest-annual-tide-hat-levels-for-year-2018-maine-coast-deplw-hat-12018/571095.png","ImageObject",442,249,{"name":88,"@type":89},"Noah","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-28","2026-10-13",true,{"@type":98,"interactionType":99,"userInteractionCount":101},"InteractionCounter",{"@type":100},"ViewAction",7,{"@type":103,"mainEntity":104},"FAQPage",[105,111,115],{"name":106,"@type":107,"acceptedAnswer":108},"What do HAT (MLLW) and HAT (NAVD88) represent in this table?","Question",{"text":109,"@type":110},"The document provides Highest Annual Tide elevations referenced to Mean Lower Low Water (MLLW) and a converted elevation reference to NAVD88, with values listed in feet.","Answer",{"name":112,"@type":107,"acceptedAnswer":113},"How are the HAT elevations intended to be used?",{"text":114,"@type":110},"They may be used to survey the upland edge of coastal wetlands for regulatory purposes under both the Natural Resources Protection Act and the Mandatory Shoreland Zoning Act.",{"name":116,"@type":107,"acceptedAnswer":117},"Where do the tidal station elevations come from and how are they converted?",{"text":118,"@type":110},"Elevations referenced to MLLW are taken from NOAA tide station data, then compiled and converted to NAVD88 using NOAA VDatum (v. 3.4) software by the Maine Geological Survey.","https://schema.org",{"og:url":78,"og:type":121,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":123,"canonical":78},"index,follow",{"doc_id":125,"site_id":56},571095,1792098270,{"code":4,"msg":5,"data":128},{"doc_id":125,"user_id":129,"nickname":88,"user_avatar":130,"doc_module":9,"category_id":50,"category_name":51,"doc_title":59,"doc_description":61,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":101,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":76,"language":136,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":60,"faqs":137,"seo_title":138,"seo_description":61,"update_tm":139,"read_time":9},8796095462418,"https://ap-avatar.wpscdn.com/avatar/80000253c1241d02b47?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778826106357471780","Maine DEP  \nHighest Annual Tide (HAT) Levels for Year 2018 Maine Coast from Eastport to Kittery  \nLocation  \nHAT (MLLW)  \nHAT (NAVD88)  \n(Tide Table-feet) (elev. feet)  \nStation Name:  \nPettegrove Point, Dochet Island  \nEASTPORT  \nGarnet Point, Pennemquan River Coffins Point  \nBirch Islands  \nGravelly Point, Whiting Bay Cutler, Little River  \nCutler Naval Base  \nStone Island, Machias Bay Machiasport, Machias River Shoppee Point, Englishman Bay Steele Harbor Island Milbridge, Narraguagus River Green Island, Petit Manan Bar Prospect Harbor  \nBAR HARBOR  \nSouthwest Harbor Bass Harbor  \nWinter Harbor, Frenchman Bay  \nBlue Hill Harbor Mackerel Cove Ellsworth, Union River  \nBurnt Coat Harbor, Swans Island  \nCenter Harbor Little Deer Isle Isle Au Haut  \nOceanville, Deer Isle Stonington, Deer Isle  \nMatinicus Harbor, Wheaton Island Vinalhaven, Vinalhaven Island North Haven  \nCastine  \nPulpit Harbor, North Haven Island Fort Point  \nGross Point, Eastern Channel Bucksport  \nWinterport Sandy Point Bangor  \nBelfast Rockland Tenants Harbor Monhegan Island  \nBurnt Island, Georges Islands Port Clyde  \n23.4  \n22.6  \n23.5  \n20.9  \n21.2  \n20.5  \n17.1  \n16.0  \n15.4  \n15.6  \n14.9  \n15.0  \n14.1  \n13.7  \n13.6  \n13.5  \n12.9  \n12.5  \n12.8  \n12.8  \n12.7  \n13.6  \n12.0  \n12.8  \n12.7  \n11.7  \n12.6  \n12.3  \n11.5  \n11.7  \n12.3  \n12.8  \n13.0  \n13.4  \n13.4  \n13.6  \n15.0  \n13.4  \n16.5  \n13.1  \n12.8  \n12.0  \n11.4  \n11.6  \n11.6  \n13.1  \n12.7  \n14.4  \n12.3  \n12.7  \n11.4  \n9.4  \n9.3  \n8.3  \n8.5  \n7.6  \n7.9  \n7.8  \n7.2  \n7.2  \n7.5  \n6.7  \n6.4  \n6.6  \n6.9  \n6.7  \n7.8  \n6.2  \n6.9  \n6.8  \n5.9  \n7.0  \n6.6  \n5.8  \n6.0  \n6.5  \n6.9  \n7.2  \n7.5  \n7.3  \n7.4  \n8.6  \n7.4  \n10.0  \n7.3  \n7.1  \n6.4  \n6.0  \n6.2  \n6.2  \nMaine DEP  \nHighest Annual Tide (HAT) Levels for Year 2018 Maine Coast from Eastport to Kittery  \nLocation  \nHAT (MLLW)  \nHAT (NAVD88)  \n(Tide Table-feet) (elev. feet)  \nOtis Cove Thomaston  \nNew Harbor, Muscongus Bay Muscongus Harbor, Muscongus Sound Friendship Harbor  \nPemaquid Harbor, Johns Bay  \nJones Neck Waldoboro East Boothbay Walpole Newcastle  \nDamariscove Harbor, Damariscove Islan  \nBoothbay Harbor Southport, Townsend Gut Isle of Springs  \nCross River entrance Wiscasset  \nSheepscot (below rapids) Back River  \nRobinhood, Sasanoa River Mill Point, Sasanoa River Hunniwell Point Phippsburg  \nBath  \nSturgeon Island, Merrymeeting Bay Androscoggin River entrance Brunswick, Androscoggin River Bowdoinham, Cathance River Cundy Harbor, New Meadows River Howard Point, New Meadows River South Harpswell, Potts Harbor Wilson Cove, Middle Bay  \nSouth Freeport Prince Point Doyle Point  \nFalmouth Foreside Great Chebeague Island Cliff Island, Luckse Sound Vaill Island  \nLong Island  \nCow Island Presumpscot River Bridge Back Cove  \nGreat Diamond Island Peak Island Cushing Island  \nPORTLAND  \nFore River  \nPortland Head Light  \n11.8  \n11.8  \n11.4  \n11.7  \n11.7  \n11.4  \n11.8  \n12.3  \n11.6  \n12.0  \n12.0  \n11.4  \n11.4  \n11.6  \n11.6  \n11.8  \n12.2  \n12.4  \n11.8  \n11.4  \n11.4  \n11.3  \n10.4  \n9.2  \n6.8  \n6.1  \n5.0  \n7.4  \n11.6  \n11.7  \n11.6  \n11.8  \n11.7  \n11.8  \n11.8  \n11.8  \n11.8  \n11.8  \n11.6  \n11.8  \n11.8  \n11.9  \n11.4  \n11.8  \n11.7  \n11.7  \n11.8  \n11.8  \n11.4  \n6.7  \n7.3  \n6.0  \n6.3  \n6.3  \n5.9  \n6.3  \n6.8  \n6.1  \n6.2  \n6.1  \n6.1  \n6.1  \n6.4  \n6.4  \n6.6  \n6.7  \n6.9  \n6.3  \n6.2  \n6.2  \n6.5  \n5.8  \n4.8  \n2.4  \n1.4  \n0.3  \n2.9  \n6.5  \n6.5  \n6.5  \n6.5  \n6.5  \n6.7  \n6.7  \n6.7  \n6.7  \n6.7  \n6.6  \n6.7  \n6.7  \n6.7  \n6.2  \n6.7  \n6.6  \n6.6  \n6.5  \n6.5  \n6.4  \nMaine DEP  \nHighest Annual Tide (HAT) Levels for Year 2018 Maine Coast from Eastport to Kittery  \nLocation  \nHAT (MLLW)  \nHAT (NAVD88)  \n(Tide Table-feet) (elev. feet)  \nPine Point  \nOld Orchard Beach  \nCamp Ellis, Saco River Entrance Biddeford, Saco River  \nCape Porpoise Kennebunkport Wells  \nCape Neddick York Harbor  \nFort Point, York Harbor Seapoint, Cutts Island  \nJaffrey Point Gerrish Island Fort Point  \nKittery Point Seavey Island Portsmouth Dover Point Salmon Falls River  \n11.4  \n11.4  \n11.6  \n12.6  \n11.2  \n11.8  \n11.5  \n11.2 ","cbCaimtqAA2NjBqM","https://ap.wps.com/l/cbCaimtqAA2NjBqM","pdf",57694,"English","[{\"question\":\"What do HAT (MLLW) and HAT (NAVD88) represent in this table?\",\"answer\":\"The document provides Highest Annual Tide elevations referenced to Mean Lower Low Water (MLLW) and a converted elevation reference to NAVD88, with values listed in feet.\"},{\"question\":\"How are the HAT elevations intended to be used?\",\"answer\":\"They may be used to survey the upland edge of coastal wetlands for regulatory purposes under both the Natural Resources Protection Act and the Mandatory Shoreland Zoning Act.\"},{\"question\":\"Where do the tidal station elevations come from and how are they converted?\",\"answer\":\"Elevations referenced to MLLW are taken from NOAA tide station data, then compiled and converted to NAVD88 using NOAA VDatum (v. 3.4) software by the Maine Geological Survey.\"}]","Highest Annual Tide (HAT) Levels for Year 2018 Maine Coast - DEPLW-HAT 1/2018 | PDF",1791888243]