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Explore Search: Reporting limit

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Technical Memos
TM97-10 Change in Ammonia Minimum Reporting Limit

TM97-10 Change in Ammonia Minimum Reporting Limit
Technical Memos
TM22-02 New journal publication for use when citing the detection limit procedures and data reporting (reporting level) conventions applied to NWQL methods in USGS publications

TM22-02 New journal publication for use when citing the detection limit procedures and data reporting (reporting level) conventions applied to NWQL methods in USGS publications
Technical Memos
TM94-13 National Water Quality Laboratory Reporting Level for the Oil and Grease in Bottom Material Analysis

TM94-13 National Water Quality Laboratory Reporting Level for the Oil and Grease in Bottom Material Analysis
Technical Memos
TM15-02 Changes to National Water Quality Laboratory procedures used to establish and verify laboratory detection and reporting limits

TM15-02 Changes to National Water Quality Laboratory procedures used to establish and verify laboratory detection and reporting limits
Technical Memos
TM96-03 Change of Reporting Levels for National Water Quality Laboratory Analytical Schedule 1359--Carbamate Pesticides by Liquid/Liquid Extraction and Liquid Chromatographic Analysis

TM96-03 Change of Reporting Levels for National Water Quality Laboratory Analytical Schedule 1359--Carbamate Pesticides by Liquid/Liquid Extraction and Liquid Chromatographic Analysis
Technical Memos
TM98-04 Changes in Minimum Reporting Levels for Solids Analyses at the NWQL (Lab Codes 159, 165, 27, 229, and 85) and Request for Information on the Need to Develop Lower Level Methods

TM98-04 Changes in Minimum Reporting Levels for Solids Analyses at the NWQL (Lab Codes 159, 165, 27, 229, and 85) and Request for Information on the Need to Develop Lower Level Methods
Technical Memos
TM97-08 Changes to the NWQL's Data Formatting and Transmittal Software

TM97-08 Changes to the NWQL's Data Formatting and Transmittal Software
Technical Memos
TM22-04 Revision of results for ammonia by KONE for 817 samples analyzed January – March 2022

TM22-04 Revision of results for ammonia by KONE for 817 samples analyzed January – March 2022
Technical Memos
TM97-07 Replacement Chemical Oxygen Demand Instrumentation Operational

TM97-07 Replacement Chemical Oxygen Demand Instrumentation Operational
publication
image of publications layered on a wooden table

Evaluation of a two-season banding program to estimate and model migratory bird survival

publication
image of publications layered on a wooden table

Analysis of environmental data with censored observations

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Pesticide datasets from the National Water Quality Laboratory: a review of recent practices of censoring scenarios for select groundwater and surfacewater results, 2001-2015

Technical Memos
TM94-12 Description and guide for interpreting low-level data supplied by the NWQL for schedules 2001, 2010, 2050, and 2051

TM94-12 Description and guide for interpreting low-level data supplied by the NWQL for schedules 2001, 2010, 2050, and 2051
publication
image of publications layered on a wooden table

Cr(VI) occurrence and geochemistry in water from public-supply wells in California

Presentations and Events

Bird Banding Lab, U.S. Fish & Wildlife Service—Centennial Presentation
video

Climate, Water Quality, Toxic Blooms of Golden Alga in Texas
Presentations and Events

Hydrography Webinar Series - Session 2
Presentations and Events
Thumbnail for ASIP April 11th webinar

Accessing Samples and Water Quality 4/11/24 Webinar
Technical Memos
TM94-04 Graphite Furnace Atomic Absorption Spectrophotometry to replace Direct-Current Plasma Atomic Emission Spectrometry for the determination of chromium in water

TM94-04 Graphite Furnace Atomic Absorption Spectrophotometry to replace Direct-Current Plasma Atomic Emission Spectrometry for the determination of chromium in water
Podcasts
Brazilian and U.S. researchers, pictured with the logo for the USGS EROS podcast Eyes on Earth

Eyes on Earth Episode 39 – Brazil’s Water Use
Podcasts
Color photo of Jon Christopherson with USGS EROS "Eyes on Earth" graphic

Eyes on Earth Episode 4 - Cataloging Earth Observation Satellites
Presentations and Events
Watershed Boundary Dataset (WBD) Transitioning to 3DHP Thumbnail

Watershed Boundary Dataset (WBD) Transitioning to 3DHP
Technical Memos
TM99-03 Analysis of Total Phenols

TM99-03 Analysis of Total Phenols
Presentations and Events

Widespread landslides during the 2018 wet year in Pittsburgh
Presentations and Events

PubTalk 2/2020 — From California to Cambodia
Presentations and Events
Title card for: Managing Large Datasets Workshop (Day 2) Webinar

Managing Large Datasets Workshop (Day 2)
video

Trends in Nutrients and Pesticides in the Nation's Rivers
video

Climate-sensitive, Insular Ecosystems of the Southeast U.S.
Presentations and Events

PubTalk — Tsunamis
Presentations and Events
Do droughts affect groundwater quality?

PubTalk-02/2022 - Do Droughts Affect Groundwater Quality? A California Story
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