North Santiam Water Quality Monitoring Year 1 Summary E R I C A N - - PowerPoint PPT Presentation

▶

Jun 12, 2023 237 likes •405 views

North Santiam Water Quality Monitoring Year 1 Summary E R I C A N D E RS E N R EG I O N A L M O N I TO R I N G CO O R D I N ATO R Project Background Started Nov 2012. Will end in Oct 2014. Paid for through OWEB and OR DEQ 319 grants

SLIDE 1

E R I C A N D E RS E N R EG I O N A L M O N I TO R I N G CO O R D I N ATO R

North Santiam Water Quality Monitoring Year 1 Summary

SLIDE 2

Project Background

 Started Nov 2012. Will end in Oct 2014.  Paid for through OWEB and OR DEQ 319 grants  Extensive match from OR DEQ for lab analysis  Sample 1 time per month  Measure: Temperature, dissolved oxygen, pH,

conductivity, turbidity, total suspended solids, NO2+NO3, total phosphorus, E. coli.

 Goal: Characterize baseline water quality conditions in 4

subbasins of the North Santiam.

SLIDE 3

Why is water quality important?

Fresh Water 2.5% Other Saline 1.0% Oceans 96.5%

Total Global Water

Source: USGS

SLIDE 4

Valentine and Stout Creeks

SLIDE 5

Marion and Bear Branch Creeks

SLIDE 6

Temperature: Upper vs Lower Stout Creek

40 50 60 70 80 Temperature (F) Date

Temperature: 7 Day Ave Max and Daily Max

60.8 F Max 7-Day Ave Max 6 12 18 24 Hours Date

Hours Above Threshold Values

Hours >60.8F Hours >64.4F Hours >75F

40 50 60 70 80 Temperature (F) Date

Temperature: 7 Day Ave Max and Daily Max

60.8 F Max 7-Day Ave Max 6 12 18 24 Hours Date

Hours Above Threshold Values

Hours >60.8F Hours >64.4F Hours >75F

SLIDE 7

Temperature: Bear Branch and Valentine Creeks

40 50 60 70 80 Temperature (F) Date

Mouth VT Temp: 7 Day Ave Max and Daily Max

60.8 F Max 7-Day Ave Max 6 12 18 24 Hours Date

Mouth VT: Hours Above Threshold Values

Hours >60.8F Hours >64.4F Hours >70F Hours >75F

40 50 60 70 80 Temperature (F) Date

Lower BB Temp: 7 Day Ave Max and Daily Max

60.8 F Max 7-Day Ave Max 6 12 18 24 Hours Date

Lower BB: Hours Above Threshold Values

Hours >60.8F Hours >64.4F Hours >70F Hours >75F

SLIDE 8

Bacteria E. Coli

Not to exceed 406mpn/100ml (OR DEQ)

500 1000 1500 2000 2500 MPN/100ml

Marion Cr.

Trib to Marion Cr. Marion Cr at Marion Rd Marion Cr at Pletzer Rd 500 1000 1500 2000 2500 MPN/100ml

Bear Branch Cr.

Bear Branch at Huntley Rd Bear Branch at Shelburn Dr 500 1000 1500 2000 2500 MPN/100ml

Valentine Cr.

Valentine Cr at Silbernagel Rd Valentine Cr nr Mouth 500 1000 1500 2000 2500 MPN/100ml

Stout Cr.

Stout Creek at Mehama Stout Creek at Mounth

SLIDE 9

Nitrogen as NO2+NO3

10mg/L limit in drinking water (US EPA)

2 4 6 8

Valentine Creek

Valentine Cr at Silbernagel Rd Valentine Cr nr Mouth 2 4 6 8 mg/L

Marion Creek

Trib to Marion Cr. Marion Cr at Marion Rd Marion Cr at Pletzer Rd 2 4 6 8 mg/L

Stout Creek

Stout Creek at Mehama Stout Creek at Mouth 2 4 6 8 mg/L

Bear Branch Creek

Bear Branch at Huntley Rd Bear Branch at Shelburn Dr

SLIDE 10

Total Phosphorus

mountain lakes 0.02mg/L, some TMDL list 0.07mg/L, 0.1mg/L for streams not entering reservoir

0.05 0.1 0.15 0.2 mg/L

Marion Creek

Trib to Marion Cr. Marion Cr at Marion Rd Marion Cr at Pletzer Rd 0.05 0.1 0.15 0.2 mg/L

Stout Creek

Stout Creek at Mehama Stout Creek at mouth (North Santiam, Willamette) 0.05 0.1 0.15 0.2 mg/L

Valentine Creek

Valentine Cr at Silbernagel Rd Valentine Cr nr Mouth 0.05 0.1 0.15 0.2 mg/L

Bear Branch

Bear Branch at Huntley Rd Bear Branch at Shelburn

SLIDE 11

Total Suspended Sediments

not to exceed 100mg/L (OR DEQ)

5 10 15 20 25 mg/L

Marion Cr.

Trib to Marion Cr. Marion Cr at Marion Rd Marion Cr at Pletzer Rd 5 10 15 20 25 mg/L

Bear Branch Cr.

Bear Branch at Huntley Rd Bear Branch at Shelburn Dr 5 10 15 20 25 mg/L

Stout Cr.

Stout Creek at Mehama Stout Creek at mouth 5 10 15 20 25 mg/L

Valentine Cr.

Valentine Cr nr Mouth Valentine Cr at Silbernagel Rd

SLIDE 12

Dissolved Oxygen

Cold water life 8 mg/L, Stout Cr. 11mg/L Oct-June

2 4 6 8 10 12 14 mg/L

Marion Cr.

Trib to Marion Cr. Marion Cr at Marion Rd Marion Cr at Pletzer Rd 2 4 6 8 10 12 14 mg/L

Bear Branch Cr.

Bear Branch at Huntley Rd Bear Branch at Shelburn Dr 2 4 6 8 10 12 14 mg/L

Stout Creek Cr.

Stout Creek at Mehama Stout Creek at mouth 2 4 6 8 10 12 14 mg/L

Valentine Cr.

Valentine Cr at Silbernagel Rd Valentine Cr nr Mouth

SLIDE 13

Other Parameters

 pH –All values between 6.5-8.5  Conductivity - all values below 150 µmhos/cm for Stout,

Bear Branch and Valentine Creeks

 Conductivity – all values below 170 µmhos/cm for

Marion Creek and tributary.

 Turbidity – all values below 29 ntu, most below 15 ntu

SLIDE 14

What does it all mean?

SLIDE 15

Thank You!

 OWEB  OR DEQ  Meyer Memorial Trust  Bonneville Environmental Foundation  E&S Environmental Chemistry  Landowners  monitoring.coordinator@gmail.com