Publication Series and Series Number: Professional Paper 1894C

Publication Title: Status of Water-Quality Conditions in the United States, 2010-20

First Version and Date of First Release: 1.00 January 15, 2025

Current Version and Date of Current Release: 1.10 February 2025
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Component	Description						Last Revised in Pub Version	Date of Last Revision

Figure 8	(A) Suspended sediment concentration and			  1.10			   February 4, 2025
		(B) accumulated yield from 2012 mean-annual
		SPAtially Referenced Regressions On Watershed
		(SPARROW) models, in the conterminous United
		States (Martinez and others, 2024).	 			
		 
												
Figure 15	Groundwater quality summary, by geogenic			   1.10			    February 4, 2025
		constituent, of (A) population affected,
		(B) area affected, and (C), percentage of wells
		affected, in the continental United States, 2013–21,
		using data from Belitz and others (2022).

Figure 1.1	Interactive, searchable map showing Spatially			    1.10		     February 4, 2025
(app. 1,        Referenced Regressions On Watershed (SPARROW) model
interactive     results for nitrogen, phosphorous, and sediment in
map)		the conterminous United States (Martinez and others, 2024).
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Historical List of Revisions

Version 1.1 - February 2025

Figure 8
Page 25, Under EXPLANATION of figure 8A, "kilograms per square kilometer" corrected to read "milligrams per liter".
Page 25, under EXPLANATION of figure 8B, "megatons" corrected to read "metric tons".

Figure 15
Page 42, Cut-off EXPLANATION of high and moderate concentrations restored. "Geogenic constituents" deleted from x-axis caption.

Figure 1.1 (app. 1, interactive map)
Under EXPLANATION for "Sediment concentration, in milligrams per liter" (top column, far right), corrected erroneous numbers associated with colored rectangles to be consistent with the fig. 8A EXPLANATION numbers in the report body.

Miscellaneous minor corrections made (not in themselves triggering a new chapter version), such as changing "integrated water availability assessment" from sentence case to title case (Integrated Water Availability Assessment) in each of the references cited for parallel chapters of this professional paper.