{"id":375202,"date":"2022-09-01T06:06:19","date_gmt":"2022-08-31T20:06:19","guid":{"rendered":"https:\/\/www.saipantribune.com\/?p=375202"},"modified":"2022-09-01T06:06:19","modified_gmt":"2022-08-31T20:06:19","slug":"sinkhole-actually-wwii-underground-water-tank","status":"publish","type":"post","link":"https:\/\/www.saipantribune.com\/index.php\/sinkhole-actually-wwii-underground-water-tank\/","title":{"rendered":"\u2018Sinkhole\u2019 actually WWII underground water tank"},"content":{"rendered":"
\"\"<\/a>
The Commonwealth Utilities Corp. isn\u2019t ruling out the possibility that the recent 5.8-magnitude earthquake played a role in the sudden collapse of the water tank in Sadog Tasi that was initially thought was a sinkhole. (CONTRIBUTED PHOTO)<\/figcaption><\/figure>\n

What was believed to have been a geological sinkhole at one of the Commonwealth Utilities Corp.\u2019s wastewater plants turned out to be an underground structure that collapsed, according to CUC.<\/p>\n

In a brief conversation with CUC executive director Gary Camacho, he said after working with various engineering teams, CUC was able to determine what exactly the \u201csinkhole\u201d was and it turned out to be an underground water tank dating back to World War II that collapsed.<\/p>\n

However, Camacho said now that CUC has a better understanding, CUC isn\u2019t ruling out the possibility that the recent 5.8-magnitude earthquake played a role in the sudden collapse of the water tank.<\/p>\n

\u201cWe have a better understanding of it now. I would imagine the earthquake played a role in this because the integrity of the structure was fine for a long period of time. I think between deterioration and seismic activity, the combination may have triggered the collapse,\u201d he said.<\/p>\n

Meanwhile in an official press release from CUC, the agency contracted engineering teams and had them conduct a preliminary condition assessment using unmanned aerial vehicles (UAVs) which helped determine what the \u201csinkhole\u201d actually was.<\/p>\n

\u201cYesterday, CUC issued a notification regarding a sinkhole that formed at the Sadog Tasi Wastewater Treatment Plant. Since the initial report, CUC and contracted engineering teams and conducted a preliminary condition assessment using unmanned aerial vehicles (UAVs) and determined that the depression formed at the Sadog Tasi site was not the result of a geological sinkhole, but was caused by the structural collapse of a portion of a World War II-era underground water storage tank,\u201d the press release stated<\/p>\n

The metal tank, which sported a concrete roof, was approximately 130 feet in diameter and was filled with 3 million gallons of clear water, CUC stated.<\/p>\n

Investigation found that a partial roof collapse occurred near the center of the tank which resulted in soil entering into the underground structure.<\/p>\n

\u201cWhile the cause of the roof failure is still under investigation, it is known that an earthquake impacted the region hours before the collapse,\u201d the press release noted.<\/p>\n

CUC has temporarily relocated all impacted staff to alternative operating areas as a result of the incident to ensure their safety and continues to provide uninterrupted power, water and wastewater services to its customers.<\/p>\n

\u201cThe Sadog Tasi Wastewater Treatment process systems have not been impacted by the event and the facility has maintained uninterrupted operations,\u201d CUC states.<\/p>\n

In addition, structural and geotechnical engineering specialists will be conducting additional assessments to develop interim and permanent remediation action plans while ensuring the safety of CUC customers and staff.<\/p>\n

\u201cThis is a developing situation. Corrections and updates to this event will be issued as new information becomes available,\u201d said CUC.<\/p>\n","protected":false},"excerpt":{"rendered":"

What was believed to have been a geological sinkhole at one of the Commonwealth Utilities…<\/p>\n","protected":false},"author":24,"featured_media":375206,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[900],"tags":[364],"class_list":["post-375202","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-featured","tag-wwii"],"_links":{"self":[{"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/posts\/375202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/comments?post=375202"}],"version-history":[{"count":0,"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/posts\/375202\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/media\/375206"}],"wp:attachment":[{"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/media?parent=375202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/categories?post=375202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.saipantribune.com\/index.php\/wp-json\/wp\/v2\/tags?post=375202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}