TECHNICAL COMMITTEE MEETINGOCTOBER 9-10, 2012

Characterization of Dissolved Solids in the Ohio River

Study Objectives

1. Characterize ambient background levels of TDS

2. Develop site-specific translators to convert conductivity to TDS

3. Quantify TDS constituent makeup to document temporal and spatial variability

4. Provide data to support possible development of an Ohio River bromide stream criterion

Sampling Design

Weekly samples collected at 16 sites

Collection sites located at water intakes Participants identified through the WUAC and PIAC

Sampling began in December, 2011

Study will run for one year

One Year TDS Study

Dissolved Solids Analytes

1. Sodium2. Potassium3. Magnesium4. Calcium5. Lithium

10. Bicarbonate11. Total Dissolved Solids

Supplemental Parameters

pHConductivityTemperatureStream flowCoordinate THM

sampling when possible

6. Chloride7. Sulfate8. Bromide9. Fluoride

OHINIL

KY

WV

VA

Pittsburgh

Huntington

Portsmouth

Louisville

Evansville

Paducah

Allegheny R.

Monongahela R.

Kanawha R.

Muskingum R.

Scioto R.

Great Miami R.

Licking R.

Kentucky R.

Green R.

Cumberland R.

Tennessee R.

Wabash R.Wheeling

ParkersburgCincinnati

TDS Sampling Sites

Big Sandy R.

NY

PA

Ohio River sites

Tributary sites

TDS Results Summary

ORSANCO Total Dissolved Solids Results SummaryDecember 2011 thru mid-August 2012

      TDS Result, mg/LRiver Mile Ohio River Min Median Max

Allegheny 8.2 0 62 158.0 236Monongahela 4.5 0 124 209.0 362Ohio 11.7 11.7 124 198.0 280Beaver 6 25 163 271.0 335Ohio 65.3 65.3 104 201.0 289Ohio 86.8 86.8 106 205.0 308Ohio 137.2 137.2 110 202.0 314Muskingum 29 172 148 333.0 507Ohio 190.5 190.5 106 188.0 323Ohio 260 260 160 211.0 321Ohio 306 306 126 173.5 251Big Sandy 23.6 317.1 155 322.0 540Ohio 462.8 462.8 150 190.0 252Ohio 600 600 166 205.0 262Ohio 791.5 791.5 160 210.0 263Ohio 978 978 142 201.0 253

TDS by Location Ohio River Sites

TDS Standard

= 500 mg/L

TDS by Location All Sites

TDS Standard

= 500 mg/L

TDS by Date

Chloride

ORSANCO Chloride Results Summary      Chloride Result, mg/L

River Mile Ohio River Min Median MaxAllegheny 8.2 0 13.019 21.291 125.564Monongahela 4.5 0 9.148 23.400 43.173Ohio 11.7 11.7 13.306 27.863 49.681Beaver 6 25 29.699 55.311 74.705Ohio 65.3 65.3 16.234 27.857 44.619Ohio 86.8 86.8 16.667 28.273 45.284Ohio 137.2 137.2 20.049 29.642 49.236Muskingum 29 172 19.491 44.919 91.030Ohio 190.5 190.5 13.991 27.245 56.871Ohio 260 260 17.690 27.824 55.865Ohio 306 306 12.647 20.444 41.427Big Sandy 23.6 317.1 7.195 13.758 32.074Ohio 462.8 462.8 11.999 20.423 38.249Ohio 600 600 12.085 21.176 37.795Ohio 791.5 791.5 11.734 19.614 37.609Ohio 978 978 11.519 20.517 472.425

Chloride

Bromide Results Summary

ORSANCO Bromide Results Summary      Bromide Result, mg/L

River Mile Ohio River Min Median Max % DetectsAllegheny 8.2 0 0.0377 0.078 0.8998 65.79Monongahela 4.5 0 0.00712 0.078 0.1295 53.85Ohio 11.7 11.7 0.0474 0.098 1.1721 61.54Beaver 6 25 0.0364 0.088 0.2223 83.33Ohio 65.3 65.3 0.041 0.09964 0.684 60.00Ohio 86.8 86.8 0.0391 0.08990 0.415 63.16Ohio 137.2 137.2 0.0327 0.08920 0.437 62.86Muskingum 29 172 0.0372 0.08750 0.9963 58.97Ohio 190.5 190.5 0.0342 0.05915 0.1902 51.28Ohio 260 260 0.0373 0.06670 0.4567 58.97Ohio 306 306 0.0285 0.04830 0.7916 51.61Big Sandy 23.6 317.1 0.035 0.0716 1.1245 50.00Ohio 462.8 462.8 0.0381 0.06770 0.292 56.10Ohio 600 600 0.0401 0.06650 0.7631 41.67Ohio 791.5 791.5 0.0317 0.06025 0.2171 41.03Ohio 978 978 0.0353 0.04710 0.3824 28.95

Bromide by Location

Bromide by Date

Sulfate Results Summary

ORSANCO Sulfate Results Summary      Sulfate Result, mg/L

River Mile Ohio River Min Median MaxAllegheny 8.2 0 28.833 54.316 76.902Monongahela 4.5 0 46.253 90.374 164.742Ohio 11.7 11.7 46.286 76.776 118.354Beaver 6 25 31.253 56.246 80.418Ohio 65.3 65.3 39.126 74.624 112.082Ohio 86.8 86.8 41.129 75.017 120.612Ohio 137.2 137.2 43.918 72.535 124.111Muskingum 29 172 45.502 99.709 166.606Ohio 190.5 190.5 34.767 59.414 123.914Ohio 260 260 47.118 75.781 124.244Ohio 306 306 36.851 59.252 89.866Big Sandy 23.6 317.1 34.555 145.363 254.114Ohio 462.8 462.8 39.918 61.490 99.204Ohio 600 600 41.647 61.002 89.327Ohio 791.5 791.5 34.519 58.914 88.240Ohio 978 978 35.600 46.402 68.014

Sulfate by Location

Flow vs TDS OH012

Flow vs TDS MU029

Flow vs TDS OH792

Flow vs. TDS (Monongahela)

Flow vs Chloride (Monongahela)

Flow vs Sulfate (Monongahela)

Flow vs Bromide (Monongahela)

Overall Summary