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Important Reminders. Sampling dates change in November & December. Temperature change on the Percentile Range chart. Data and paperwork coming in on time. Take extra readings if the meter is still drifting. It’ll get cold soon.

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Important reminders
Important Reminders

  • Sampling dates change in November & December.

  • Temperature change on the Percentile Range chart.

  • Data and paperwork coming in on time.

  • Take extra readings if the meter is still drifting. It’ll get cold soon.

  • When submitting data online, now use “Submit To Ken” button except in cases where there is more than one person entering data. Then save file between uses.

  • Carolyn Ross is the assistant to the Riverkeeper. She’ll be taking over most of the courier duties from the students.

  • Training today after the conference is over. It will be located across the street in room # 303.

  • Future of our current water quality meters


Waccamaw river volunteer monitoring
Waccamaw River Volunteer Monitoring

Annual Data Conference

2011


Topics
Topics

  • This past year

    • Drought to Blackwater

  • Using percentiles for site specific standards

  • New graph feature at the website


Web resources
Web Resources

Data Entry

Data Retrieval

  • What sites are “hot”?

  • When are they “hot”?

  • Why?


Dissolved oxygen
Dissolved Oxygen

  • Aquatic Sources

    • Atmosphere

    • Photosynthesis

  • Aquatic Sinks

    • Respiration

      • Animals

      • Microbes

        • Blackwater dissolved organic matter

        • Polluted runoff

        • Septage and sewage


Questions
Questions

  • Which site has the lowest average oxygen level?

  • Do any geographic trends appear to be present?

  • Which sites have values below the WQS?

  • Which times of the year is oxygen lowest?

  • During which summer(s) were oxygen levels lowest?


Is low do natural
Is low DO “natural”?

293+71

180+47

230+54

212+37

112+20

151+65



PT

BS

EP

WC

HG

SP



TDIN = nitrate + nitrite + ammonia

SC DHEC mean value for 1990-1994: 0.26 mg/L

SS for 2006 TDIN = 0.1 to 0.4 mg/L

WQS based on US EPA recommendations & national ammonia criteria



Take home messages
Take home messages

  • Realizing the original intent

    • Trend analysis

    • Hot Spots and Illicit discharge detection

  • Timely

    • More stormwater pollution requirements

    • Less funding to SC DHEC

Turbidity TDIN E. coli







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