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  2. How to best filter your L.A. tap water based on your ZIP Code

    www.aol.com/news/best-filter-l-tap-water...

    It’s very unlikely you’ll get sick from tap water, assuming the tap water meets federal regulations." Read more: 7 perfect L.A. spots beyond the beach for a tranquil walk by the water How to ...

  3. Environmental Working Group - Wikipedia

    en.wikipedia.org/wiki/Environmental_Working_Group

    The Environmental Working Group (EWG) is an American activist group that specializes in research and advocacy in the areas of agricultural subsidies, toxic chemicals, drinking water pollutants, and corporate accountability. EWG is a 501(c)(3) nonprofit organization.

  4. Drinking water quality in the United States - Wikipedia

    en.wikipedia.org/wiki/Drinking_water_quality_in...

    Drinking water quality in the United States is generally safe. In 2016, over 90 percent of the nation's community water systems were in compliance with all published U.S. Environmental Protection Agency (US EPA) standards. [1] Over 286 million Americans get their tap water from a community water system.

  5. Postal address verification - Wikipedia

    en.wikipedia.org/wiki/Postal_address_verification

    If the address is valid, it is assigned a ZIP+4 code something like this: 12344-5678, where the first five digits are the ZIP code and the trailing four digits are the delivery range. An address with a ZIP+4 code (or nine-digit ZIP code) is considered to be valid. In most cases, this means that the address is deliverable.

  6. Why Drinking Bottled Water Can Be Much Worse for You Than Tap ...

    www.aol.com/why-drinking-bottled-water-much...

    The health halo surrounding bottled water is starting to burst. Bottled water first became popular in the United States in the 1970s and 1980s, with many brands aligning themselves with health and ...

  7. What Is a Billing Zip Code? How To Find Yours for Your ... - AOL

    www.aol.com/billing-zip-code-yours-credit...

    Your billing zip code, or credit card postal code, is the five-digit number on the bottom right, which in this sample is 90210. This would be the zip code associated with your billing address.

  8. ZIP Code - Wikipedia

    en.wikipedia.org/wiki/ZIP_Code

    By the early 1960s, a more organized system was needed, and non-mandatory five-digit ZIP Codes were introduced nationwide on July 1, 1963. [4] [5] The USPOD issued its Publication 59: Abbreviations for Use with ZIP Code on October 1, 1963, with the list of two-letter state abbreviations which are generally written with both letters capitalized ...

  9. Intelligent Mail barcode - Wikipedia

    en.wikipedia.org/wiki/Intelligent_Mail_barcode

    This section of the code may be omitted, but if it is present, the 5-, 9-, or 11-digit forms of the ZIP Code are also encoded in the Intelligent Mail barcode. The full 11-digit form includes the standard 5-digit ZIP code, the ZIP + 4 code, and a 2-digit code indicating the exact delivery point. This is the same information that was encoded in ...