File:Arsenic Removal System Absorber vessels 4.jpg

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Description	English: Back wash tank, (blue) arsenic removal absorber vessels, and Hydrochloric Acid (to balance Ph levels) at the Freer Water Control and Improvement District (FWCID) Arsenic Removal System Site, on Tuesday, June 18, 2013, in Freer, Texas.
Date	24 July 2014, 15:33:23
Source	https://www.flickr.com/photos/usdagov/9404353481/sizes/l/
Author	U.S. Department of Agriculture

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This image was originally posted to Flickr by USDAgov at https://www.flickr.com/photos/41284017@N08/9404353481. It was reviewed on 24 July 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

24 July 2014

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This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	14:39, 24 July 2014		4,142 × 1,197 (4.13 MB)	Ensahequ (talk \| contribs)	original picture (better resolution)
	14:37, 24 July 2014		1,024 × 296 (180 KB)	Ensahequ (talk \| contribs)	User created page with UploadWizard

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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D300
Exposure time	1/800 sec (0.00125)
F-number	f/14
ISO speed rating	320
Date and time of data generation	13:44, 18 June 2013
Lens focal length	12 mm
Image title	Freer Water Control and Improvement District benefits from the financial assistance of the U.S. Department of Agriculture (USDA) Rural Development (RD) to complete a two-phase approach to meeting the city’s water supply and safety needs, on Tuesday, June 18, 2013. Although, the naturally occurring arsenic levels have remained constant for more than a century, the safe level standards have established lower levels of arsenic to be safe for human consumption. To meet those levels the City of Freer approached USDA and was awarded a $986,000 loan for Phase I, to install two new water wells, each rated at 167 gallons per minute; 13,600 feet of well collection lines; and 15,000 linear feet of well control line to remotely control the input of water into a reservoir holding-tank at the new ArsenicRemoval System (Phase II). Previously, water was manually controlled by personnel who knew when and how long to manually opened and closed water valves or started well pumps to ensure reservoir tank levels were within operating levels during peek and slack times of the day. Phase II was a combination of a $1,832,000 loan and a $1,258,750 grant, which provided for the customized arsenic removal system, seen in these photos. The system includes a new 3,530 sp. ft. facility, on a .76-acre site, and houses the operations room, computer and power system, laboratory room, and pump systems. The entire operation can be monitored through a desktop computer interface system. The pump system, which works in sequence, maintains a constant pressure to the system. The computer-controlled system ensures remote pumps keep holding tanks filled to the proper level, then the water is pumped through (blue) filtration media tanks (seen here, on the right is a hydrogen chloride tank) to separate arsenic from the water, and then to a water reservoir tank that feeds the residential and commercial needs of the city. Samples of water are periodically tested; and so far the arsenic levels have been below 1part per billion, well under dangerous levels. USDA Photo by Lance Cheung.
Usage terms	www.usda.gov
Software used	Adobe Bridge CS6 (Macintosh)
File change date and time	01:15, 31 July 2013
Exposure Program	Normal program
Exif version	2.21
APEX shutter speed	9.643856
APEX aperture	7.61471
APEX exposure bias	−1
Maximum land aperture	4 APEX (f/4)
Metering mode	Center weighted average
Light source	Unknown
Flash	Flash did not fire
DateTimeOriginal subseconds	6
Sensing method	One-chip color area sensor
File source	Digital still camera
Scene type	A directly photographed image
Exposure mode	Auto exposure
White balance	Auto white balance
Digital zoom ratio	1
Focal length in 35 mm film	18 mm
Scene capture type	Standard
Scene control	None
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown
Serial number of camera	3163411
Lens used	12.0-24.0 mm f/4.0
Date and time of digitizing	08:44, 18 June 2013
Rating (out of 5)	5
Date metadata was last modified	21:15, 30 July 2013
Unique ID of original document	57E22A42D8531D705D8F2EC697ACCC70
Copyright status	Copyright status not set
Keywords	USDA Department of Agriculture
Contact information	lance.cheung@oc.usda.gov www.flickr.com/photos/usdagov 1400 Independence Avenue, SW Washington, District of Columbia, 202150 USA
IIM version	4

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File:Arsenic Removal System Absorber vessels 4.jpg

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24 July 2014

captured with

Nikon D300

exposure time

0.00125 second

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14

focal length

12 millimetre

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320

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image/jpeg

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8ea19aa42a89b88eacd39d77a575e4777039dc01

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