Skip to main content

Development of a Copper Criteria Adjustment Procedure for Michigan's Upper Peninsula Waters

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

Results of laboratory tests and water quality monitoring revealed that elevated copper concentrations in several Upper Peninsula (U.P.), Michigan streams were not associated with toxic effects or adverse impacts on resident aquatic macroinvertebrate or fish communities. These results suggest that Michigan's current copper standard may be overprotective for streams and rivers in the U.P., and perhaps in other State waters as well. This research program was designed to develop a copper criteria adjustment procedure for U.P. waters using a scientifically defensible approach that accounts for site-specific conditions. The program goal was to identify water quality parameters that mitigate copper toxicity and employ them in the derivation of site-specific copper criteria for U.P. waters. Recent research indicates that dissolved organic carbon may influence copper toxicity more than water hardness. Therefore, we selected U.P. rivers and streams with a wide range of water hardness (range: 15 - 213 mg/L CaCO3) and dissolved organic carbon (DOC) (range: <1 – 30 mg/L). Water was collected from 18 sites in 17 different waterbodies (15 rivers and streams; two lakes) for chemical analysis and water-effect ratio (WER) determination using 48 h static exposures to Ceriodaphnia dubia. A smaller subset of the 18 original sites spanning the full range of water hardness and DOC concentration in the U.P. were sampled seasonally to examine temporal influence on WERs. The data indicate that: i) a single standard for copper in the U.P. is not appropriate; ii) copper toxicity in U.P. waters is poorly correlated with water hardness (also alkalinity and pH); and iii) copper toxicity in U.P. waters is highly dependent on DOC concentration. Modification of Michigan's copper standard at any given U.P. site appears to be best achieved by linear graphic interpolation of the WER from measured DOC concentrations.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics


Document Type: Research Article

Publication date: 01 October 2007

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more