{"id":887,"date":"2026-08-20T18:12:56","date_gmt":"2026-08-20T09:12:56","guid":{"rendered":"https:\/\/rusutsu-sustainable.com\/?p=887"},"modified":"2026-08-20T18:12:57","modified_gmt":"2026-08-20T09:12:57","slug":"groundwater-survey-in-the-east-izumikawa-and-west-areas","status":"publish","type":"post","link":"https:\/\/rusutsu-sustainable.com\/?p=887&lang=en","title":{"rendered":"Groundwater Survey in the East, Izumikawa, and West Areas"},"content":{"rendered":"\n<section class=\"wp-block-jinr-blocks-designtitle b--jinr-block b--jinr-h2rich d--h2rich-left d--h2rich-style1 d--titledesign-weight-thin d--h2rich-none js--scr-animation\" style=\"border-color:false\"><div class=\"c--h2rich-contents\"><h2 class=\"a--h2rich-maincopy d--bold ef\" style=\"color:false\"><strong>Understanding Groundwater Flow Through Observation-Well Water Levels and Elevations<\/strong><\/h2><\/div><\/section>\n\n\n\n<p class=\"wp-block-paragraph\">Groundwater at Rusutsu Resort does not flow in the same way across every area.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because the topography and geology vary, the East, Izumikawa, and West areas may each have distinct groundwater characteristics.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">During this field survey, we inspected the observation wells installed in each area, measured groundwater levels, and used RTK surveying to determine wellhead elevations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the East area\u2019s \u201cUdo Valley,\u201d we confirmed three simple observation wells.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image2-1-1024x768.jpg\" alt=\"\" class=\"wp-image-851\" srcset=\"https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image2-1-1024x768.jpg 1024w, https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image2-1-300x225.jpg 300w, https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image2-1-768x576.jpg 768w, https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image2-1-1536x1153.jpg 1536w, https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image2-1.jpg 1999w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">At the two upstream wells, groundwater levels had fallen at the time of the survey, and no water was observed inside the wells. Because groundwater levels vary with the seasons and rainfall, continuous monitoring is essential.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the Izumikawa area, we confirmed two newly installed simple observation wells in addition to the existing observation well.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At Izumikawa Well No. 3, located at the highest elevation, we observed artesian flow\u2014groundwater naturally flowing out at the surface.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image1-1-1024x768.jpg\" alt=\"\" class=\"wp-image-850\" srcset=\"https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image1-1-1024x768.jpg 1024w, https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image1-1-300x225.jpg 300w, https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image1-1-768x576.jpg 768w, https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image1-1-1536x1153.jpg 1536w, https:\/\/rusutsu-sustainable.com\/wp-content\/uploads\/2026\/08\/image1-1.jpg 1999w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">By accurately measuring wellhead elevations and groundwater levels at multiple wells, we can estimate the direction of groundwater flow.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In the West area, in addition to the existing Well No. 7, we inspected a well near the campground and an old well discovered during park development.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Going forward, we will compare groundwater-level elevations at each well to better understand groundwater flow in the West area.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A single well\u2019s water level is not enough to understand groundwater in Rusutsu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By recording well water levels, topography, and rainfall at multiple locations over the same time period, we can understand groundwater movement not as isolated points, but across the wider landscape.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The survey data obtained in this study will provide a foundation for mapping groundwater-flow directions and considering the sustainable use of groundwater.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Groundwater at Rusutsu Resort does not flow in the same way across every area. Because the topography and geol [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":849,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jinr_url_youtube":"","_jinr_pip_youtube":false,"_jinr_time_youtube":"","_jinr_thumb_youtube":"","_jinr_media_youtube":"","_jinr_category_edit":false,"_jinr_category":"","_jinr_title_display":false,"_jinr_snsbutton_display":false,"_jinr_ads_display":false,"_jinr_thumbnail_display":false,"_jinr_profile_display":false,"_jinr_representations_display":false,"_jinr_relatedpost_display":false,"_jinr_sidebar1col_display":false,"_jinr_sidebar2col_display":false,"_jinr_seotitle_display":"","_jinr_description_display":"","_jinr_keyword_display":"","_jinr_hastag_display":"","_jinr_canonical_display":"","_jinr_noindex_display":false,"_jinr_paidpost":false,"_jinr_paidpost_product_id":"","_jinr_headtag_article":"","footnotes":""},"categories":[42,70],"tags":[],"class_list":["post-887","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-activity-reports-en","category-water-monitoring-en"],"views":"0","_links":{"self":[{"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=\/wp\/v2\/posts\/887","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=887"}],"version-history":[{"count":1,"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=\/wp\/v2\/posts\/887\/revisions"}],"predecessor-version":[{"id":888,"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=\/wp\/v2\/posts\/887\/revisions\/888"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=\/wp\/v2\/media\/849"}],"wp:attachment":[{"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rusutsu-sustainable.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}