Feb 2008

Water-quality data now updated nightly if changes occur in the USGS Water Science Centers' NWIS Database.
Updated Automated Retrievals web page to show how to do water-quality retrievals.
It is now possible to search for water-quality data at the national level using data attributes.
Monthly statistics now calculated over user specified time period instead of limited by USGS defined statistical summary period.
Date format now output in user selected sequence for measurements and daily values.
Now displays graphs of today's data for sites on other side of international dateline.
"Site Home Page" from pulldown menu has now been renamed to "SUMMARY OF ALL AVAILABLE DATA".
Instantaneous value tab-separated data outputs now have masking periods applied correctly.
Latitude/Longitude searching for sites on other side of international dateline should now work correctly (negative longitudinal values).
Added new current condition parameter codes:

00048 Total partial pressure of dissolved gases, water, unfiltered, percent of saturation
00197 Evaporation, accumulated, inches
72036 Reservoir storage, thousand acre feet
72125 Atmospheric water vapor pressure, calculated, kilopascals

Surface water measurements are now redirected to the nwis.waterdata system.
Precipitation accumulation periods are now calculated based upon current date and time rather then the result date of the data for the first site on the page.
Added documentation for current_rating_nu in the Surface Water help section.
Fixed issue where groundwater level graphs were not being created.
Updated water quality method code documentation.
Improved Taxonomic units documentation.
Updated rdb header text for water-quality tab separated data outputs.
Period of record is now used if no begin date is specified but an end date is specified for water-quality searching.
Multiple masking periods are now correctly being applied for Daily Value data.
Removed GW tutorial Link.
Parameter code searching will now match regardless of case for parameter name and group name.
Calendar/water year properly displayed in annual statistic tab-separated (rdb) outputs.
Sites with a mean value of .0 should now display that value correctly.
Enabled Visual Identity Standards