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DRIVER-WATER-WELL-TREATMENT-CHEMISTRY The main purpose of water well rehabilitation is to restore lost water volume and/or quality. Rehabilitation methods fall into two main categories: chemical or mechanical. Chemical rehabilitation involves discovering the cause(s) of well plugging and adding a chemical solution designed to dissolve the plugging material. Although various chemical formulas are offered by different companies, the basic approach is the same: a successful chemical reaction in the well.

The COVID-19 pandemic and killing of George Floyd along with other recent deaths of Black people at the hands of police have laid bare stark structural and systemic racial inequities and their impacts on the health and well-being of individuals and communities. While these events have brought health and health care disparities into sharp focus for the media and public, they are not new. These longstanding and persistent health disparities are symptoms of broader social and economic challenges that are rooted in structural and systemic barriers across sectors - including housing, education, employment, and the justice system - as well as underlying racism and discrimination. Amid this difficult time for our nation, the increased recognition and understanding of disparities could provide a catalyst for the challenging work required to address them.

DRIVER-WATER TREATMENT TECHNOLOGY Ozone water treatment oxidizes iron, manganese, and sulfur in your well water to form insoluble metal oxides or elemental sulfur. These insoluble particles such as rust, are then removed by filtration which is typically activated carbon, manganese dioxide, or other media such as filter sand. Ozone is much faster at killing bacteria and oxidizing iron and manganese compared to chlorine or peroxide. One advantage for home use is that ozone is quite unstable and will degrade over a time frame ranging from a few seconds to 30 minutes.

U.S. cryptocurrency markets and related platforms will "not end well" if they stay outside the purview of regulators, according to Securities and Exchange Commission Chairman Gary Gensler.

"The present study found that approximately 63% of the hotels which were inspected following a Legionnaires' disease case notification were found to be colonized with Legionella spp. The study also evaluated the significant factors that contribute to the maintenance, management and disinfection of water distribution systems, including the successful implementation of WSPs to improve hotel water supply and sanitation systems. Chemical treatment and the monitoring of drinking water quality, including chlorine disinfection, pH adjustment, and water temperature control of hot water systems are recommended as control measures in water safety plans, in conjunction with other procedures. It has also been found that antiquated hotel buildings are at increased risk in terms of the safety and quality of the water in their distribution systems. To conclude, risk assessment, environmental monitoring and disinfection of water systems, as well as the implementation of preventive control measures (WSPs) are the key elements for preventing contamination by pathogenic microorganisms in large public and private water distribution systems."

DRIVER-POLITICS Water Politics Limited, a geopolitical risk advisory and consulting firm, found that water scarcity could lead to conflict or political instability in many countries. Sources including the Euphrates, Tigris, Jordan, Nile, Danube, and Okavango rivers as well as the Tibetan watershed and resources will become insufficient to support the surrounding areas. These sources currently provide water to dozens of countries across Europe, the Middle East, Asia, and Africa. Water scarcity will therefore affect communities across the globe. Importantly, it may spark conflict over remaining water resources, within a nation or even between nations. Anya Groner at The Atlantic points to evidence of past conflicts that have revolved around water. These include the riots in Cape Town, South Africa, in 2012, which responded to inequality in the distribution of water resources.

"Approximately 85% of all steel produced is carbon steel and therefore susceptible to natural oxidation and galvanic corrosion. The rate of corrosion is well understood in typical atmospheric conditions, but for the design engineer, the precise localized or micro-environment conditions must be well understood for him/her to have confidence in the ultimate durability of the design. Other micro-environments include exposure to fresh and salt water (in or very near) or in soil. "

DRIVER-WATER-SCARCITY-INFRASTRUCTURE-MATERIALS The North American drinking water infrastructure network spans an estimated 1 million miles, more than four times longer than the National Highway System, and that doesn't even take wastewater pipes into account. Much of the water infrastructure in the United States will need to be replaced in the next three decades. A large portion of water pipes was installed during three periods, and they will all need to be replaced in the next 25 years. Consider the following The oldest cast iron pipes laid in the late 1800s usually last 120 years; Pipes laid in 1920s must be replaced after 100 years; Pipes from the post-World War II boom wear out after 75 years. According to a 2012 report done by the American Water Works Association, the cost estimate to replace the old pipes is approximately $1 trillion over the next 25 years. The longer our water infrastructure is out of sight and out of mind, the closer we are to a serious national situation that will require immediate and dramatic funding. The cost of water infrastructure replacement far exceeds the financial capabilities of local water utilities and requires a strong commitment from not only utilities but rate-payers and government as well.

DRIVER-POLITICS Many political factors impacted the development of the Colorado River Compact (now known as the Colorado River Basin Water Agreement, or CRBWA). These political factors included politicians, political agencies, legislation, and political pressure groups/lobbyists. This paper will present an in-depth administrative analysis of the impact of politics on the CRBWA. It will include historical and theoretical research, as well as interviews with present-day politicians in order to answer questions relating to the impact of politics on the original agreement. Some of the major questions asked were: What politics impacted the CRBWA and how did they affect its creation? Has the agreement achieved its goals and mission? Why or why not? What changes could be made to the CRBWA to help achieve the agreement's mission and goals?

This is a chapter excerpt from a very popular book on Nano Biopesticides. "Today's global population has reached 7 billion, and is projected to reach 9.2 billion by 2050, an increase of 30% (70 million per annum). This explosive increase of the global population is expected to increase the demand for food production by 70%, notably due to changes in dietary habits in developing countries toward high-quality food." There is public demand for an alternative to chemical pesticides as well as the financial incentives "biological pesticides require 3-6 years and an investment of around $15-20 million for development and registration compared to synthetic pesticides, which require 10 years and $200 million for their development." The article is longer than many but a broad spectrum introduction to the technology.

The thirteen chapters of the Working Group I report provide an assessment of the current evidence on the physical science of climate change, knowledge evaluation gained from observations, reanalyses, paleoclimate archives and climate model simulations, as well as physical, chemical and biological climate processes. (1300 pages?)

The segments mated briefly on Friday are codenamed B4 (the Super Heavy booster) and Ship 20 (the Starship upper-stage). The pair won't launch until they have a licence from the Federal Aviation Administration (FAA). The government agency is currently conducting an environmental review that will invite at some point a 30-day public consultation. So, the maiden orbital outing is still some way off. But Mr Musk is very keen that it should happen well before the end of the year. He described seeing the brief mating of the segments on Friday as a "dream come true". He has to make Starbase work, everything else is dependent on it. Never good to have all your eggs in one basket.

The third edition of NASA's "International Space Station Benefits for Humanity" book now is available. The new edition fills more than 200 pages with the many benefits of conducting research on the orbiting microgravity laboratory and includes new assessments of the economic value - as well as greater detail about the scientific value - of the International Space Station. Really this is NASA defending it's spending.

Travellers will use facial scanners to print and attach a bag tag from a self-serve kiosk and place their bag on the conveyer. They will also use facial scan to pass through the domestic checkpoint in dedicated TSA PreCheck lanes (no need to show a government ID or boarding pass) and at the gate another facial scan will produce a boarding pass. Automation of these services will result in fewer jobs as well as enhanced tracking and identification of passengers.

The new National Cryptocurrency Enforcement Team (NCET) that the Department of Justice is forming will focus on investigating and prosecuting criminal misuse of cryptocurrency, but DOJ's history of working with federal regulatory agencies on high-profile civil enforcement actions shows that crypto businesses willfully violating regulatory requirements should be wary of the NCET as well.

The closing of thousands of bank branches in the aftermath of the 2007-09 recession has served to intensify societal concerns about access to financial services among low- income and minority populations, groups that are often affected disproportionately in such situations. These sorts of concerns were expressed recently by, among others, researchers Terri Friedline and Mathieu Despard in an article in The Atlantic.1 We explored these concerns from the perspectives of those living in existing banking deserts as well as those who are dependent on isolated branches that, if closed, would create new deserts.

Not everybody is happy about Musk rolling into south Texas. There are issues with the environment as well - the area he picked is ripe birds and other critters that need protecting from big business.

The battle lines are drawn!