{"id":1197,"date":"2019-08-01T01:46:26","date_gmt":"2019-08-01T01:46:26","guid":{"rendered":"https:\/\/www.ampac1.com\/blog\/seasonal-variation-of-water-quality-in-unregulated-domestic-wells\/"},"modified":"2026-05-03T20:22:10","modified_gmt":"2026-05-04T03:22:10","slug":"seasonal-variation-of-water-quality-in-unregulated-domestic-wells","status":"publish","type":"post","link":"https:\/\/www.ampac1.com\/blog\/seasonal-variation-of-water-quality-in-unregulated-domestic-wells\/","title":{"rendered":"Seasonal Variation of Water Quality in Unregulated Domestic Wells"},"content":{"rendered":"<div class=\"answer-box\" style=\"background:#f0f7ff;border-left:4px solid #0066cc;padding:16px 20px;margin:0 0 24px;border-radius:4px\">\n<p><strong><a href=\"https:\/\/www.ampac1.com\/blog\/enrichment-of-free-living-amoebae-in-biofilms-developed-at-upper-water-levels-in-drinking-water-storage-towers-an-inter-and-intra-seasonal-study\/\">Seasonal<\/a> Well <a href=\"https:\/\/www.ampac1.com\/blog\/variability-in-the-chemistry-of-private-drinking-water-supplies-and-the-impact-of-domestic-treatment-systems-on-water-<a href=\"https:\/\/www.ampac1.com\/blog\/do-you-know-how-ferrero-rocher-provides-you-the-best-quality-chocolates\/\">quality<\/a>\/&#8221;>Water<\/a> Quality Variation<\/strong> is a big deal in today&#8217;s water treatment world. Here at AMPAC USA, we build top-tier systems that make sure homes, businesses, and industries get safe, clean water. Our systems are made to pull out as many contaminants as possible and keep working reliably for a long time.<\/p>\n<\/div>\n<p>\\\\n\\\\n<\/p>\n<div class=\"art-authors hypothesis_container\"><span class=\"inlineblock\">Yoshira Ornelas Van Horne<sup> 1,*<\/sup>,<\/span><span class=\"inlineblock\">Jennifer Parks<sup>\u00a02<\/sup><i class=\"fa fa-envelope-o\"><\/i>,<\/span><span class=\"inlineblock\">Thien Tran<sup>\u00a03<\/sup><i class=\"fa fa-envelope-o\"><\/i>,<\/span><span class=\"inlineblock\">Leif Abrell<sup> 3,4<\/sup>,<\/span><span class=\"inlineblock\">Kelly A. Reynolds<sup> 1<\/sup>\u00a0and <\/span><span class=\"inlineblock\">Paloma I. Beamer<sup>\u00a01<\/sup><i class=\"fa fa-envelope-o\"><\/i><\/span><\/div>\n<p>\\\\n<\/p>\n<div class=\"nrm\"><\/div>\n<p>\\\\n<\/p>\n<div><\/div>\n<p>\\\\n<\/p>\n<div class=\"hypothesis_container\">\\\\n<\/p>\n<div class=\"art-affiliations\">\\\\n<\/p>\n<div class=\"affiliation\">\\\\n<\/p>\n<div class=\"affiliation-item\"><sup>1<\/sup><\/div>\n<p>\\\\n<\/p>\n<div class=\"affiliation-name \">Mel and Enid Zuckerman College of Public Health, University of Arizona, 1295 N. Martin Ave., Tucson, AZ 85724, USA<\/div>\n<p>\\\\n<\/p><\/div>\n<p>\\\\n<\/p>\n<div class=\"affiliation\">\\\\n<\/p>\n<div class=\"affiliation-item\"><sup>2<\/sup><\/div>\n<p>\\\\n<\/p>\n<div class=\"affiliation-name \">Friends of the Santa Cruz River, P.O. Box 4275, Tubac, AZ 85646, USA<\/div>\n<p>\\\\n<\/p><\/div>\n<p>\\\\n<\/p>\n<div class=\"affiliation\">\\\\n<\/p>\n<div class=\"affiliation-item\"><sup>3<\/sup><\/div>\n<p>\\\\n<\/p>\n<div class=\"affiliation-name \">Department of Soil, Water &amp; Environmental Science, University of Arizona, Tucson, AZ 85721-0038, USA<\/div>\n<p>\\\\n<\/p><\/div>\n<p>\\\\n<\/p>\n<div class=\"affiliation\">\\\\n<\/p>\n<div class=\"affiliation-item\"><sup>4<\/sup><\/div>\n<p>\\\\n<\/p>\n<div class=\"affiliation-name \">Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721-0041, USA<\/div>\n<p>\\\\n<\/p><\/div>\n<p>\\\\n<\/p>\n<div class=\"affiliation\">\\\\n<\/p>\n<div class=\"affiliation-item\"><sup>*<\/sup><\/div>\n<p>\\\\n<\/p>\n<div class=\"affiliation-name \">Author to whom correspondence should be addressed.<\/div>\n<p>\\\\n<\/p><\/div>\n<p>\\\\n<\/p><\/div>\n<p>\\\\n<\/p><\/div>\n<p>\\\\n<\/p>\n<div class=\"bib-identity\"><em>Int. J. Environ. Res. Public Health<\/em>\u00a0<b>2019<\/b>,\u00a0<em>16<\/em>(9), 1569;\u00a0https:\/\/doi.org\/10.3390\/ijerph16091569<\/div>\n<p>\\\\n<\/p>\n<div class=\"pubhistory\">Received: 12 April 2019 \/ Revised: 30 April 2019 \/ Accepted: 1 May 2019 \/ Published: 5 May 2019<\/div>\n<p>\\\\n<\/p>\n<div class=\"belongsTo\">(This article belongs to the Special Issue\u00a0Drinking Water and Health Risks)<\/div>\n<p>\\\\n<\/p>\n<div><\/div>\n<p>\\\\n<\/p>\n<div>\\\\n<\/p>\n<h1 class=\"no-margin-top no-border-top\">Abstract<\/h1>\n<p>\\\\nIn the U.S., up to 14% of people rely on private wells for their drinking water. The thing is, the U.S. government doesn&#8217;t regulate contaminants in these private wells. This study wanted to check the water quality of unregulated private wells within one mile (1.6 kilometers) of an effluent-dominated river in the arid Southwest. We also wanted to see how contaminant levels changed between wet and dry seasons, and if human sources were contributing by specifically measuring man-made organic contaminants like PFOA, PFOS, and sucralose. We collected samples during two dry seasons and two wet seasons over two years. Then, we checked for microbial contaminants (<span class=\"html-italic\">Escherichia coli<\/span>), inorganic ones (arsenic, cadmium, chromium, copper, lead, mercury, nitrate), and synthetic organic ones (PFOA, PFOS, and sucralose). We found arsenic, nitrate, and <span class=\"html-italic\">Escherichia coli<\/span> concentrations were higher than what&#8217;s considered safe: 0.01 mg\/L, 10 mg\/L, and 1 colony forming unit (CFU)\/100 mL, respectively. The PFOA and PFOS levels we measured were also higher than the Public Health Advisory level. Arsenic, PFOA, PFOS, and sucralose were significantly higher during the dry seasons, but <span class=\"html-italic\">E. coli<\/span> was higher during the wet seasons. Some contaminants were linked, like arsenic and mercury (r = 0.87) or PFOA and PFOS (r = 0.45). But since different types of contaminants didn&#8217;t always line up, it means they probably come from different places. We need a bunch of different approaches to help reduce exposure to drinking water that&#8217;s above health guidelines.\\\\n\\\\n<\/div>\n<p>\\\\n<\/p>\n<div><\/div>\n<p>\\\\nThe post Seasonal Variation of Water Quality in Unregulated Domestic Wells appeared first on Facts About Water.\\\\n\\\\nSource: Water Feed<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The goals of this study were to investigate the quality of drinking water from unregulated private wells<\/p>\n","protected":false},"author":1,"featured_media":87982,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[24,29],"tags":[22],"class_list":["post-1197","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-water-filter","category-water-treatment","tag-ro"],"_links":{"self":[{"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/posts\/1197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/comments?post=1197"}],"version-history":[{"count":6,"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/posts\/1197\/revisions"}],"predecessor-version":[{"id":88256,"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/posts\/1197\/revisions\/88256"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/media\/87982"}],"wp:attachment":[{"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/media?parent=1197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/categories?post=1197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ampac1.com\/blog\/wp-json\/wp\/v2\/tags?post=1197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}