42-OUTFALL 001 NPDES SOP Document.pdf

Contact the Division of Environmental Protection (DEP) 301-496-7775 if any samples are determined to be in “noncompliance” April 2009

NIH National Pollution Discharge Elimination System Stream (Outfall 001) Monitoring Procedures

State Discharge Permit Number: 03-DP-2520

NPDES Permit Number: MD0025496 mohammad Cross-Out mohammad Cross-Out mohammad Cross-Out mohammad Cross-Out

Contact the Division of Environmental Protection (DEP) 301-496-7775 if any samples are determined to be in “noncompliance”

WASTEWATER OUTFALL 001 MONTHLY ANALYSIS

REPORT

Date:

Time of Sample: ________________ pH Calibration Calibrated by: __________________________________ pH of Buffer Calibration pH as tested Temperature (F) 4.0 7.0 10.0

SAMPLE RESULT

Name of Sampler: ________________ Name of Tester: ______________________

Parameter Test Time Result Notes

1) Total Chlorine Max. <0.10 PPM, *, @

2) Dissolved Oxygen Min. 5 mg/l, **, Test at stream

3) pH Min. 6.5, Max. 8.5. ***, @

4) Temperature Differential Test at stream points A and B Temperature A: ___________ Temperature B: ___________

If… Then enter result as:

Temperature A > Temperature B Noncompliance Temperature A = Temperature B 0 Temperature A < Temperature B <0

*4500-Cl G. DPD Colorimetric Method, Standard Methods for the Examination of Water and Wastewater 20th Edition ** 4500-O G. Membrane Electrode Method. Standard Methods for the Examination of Water and Wastewater 20th Edition.

***4500-H+ pH VALUE (Approved by Standard Methods Committee, 1996), Standard Methods for the Examination of Water and Wastewater 20th Edition.

@ Total Chlorine and pH tests must be completed within 15 minutes after the sample is taken. Dissolved Oxygen and Temperature are to be taken at the outfall.

Contact the Division of Environmental Protection (DEP) 301-496-7775 if any samples are determined to be in “noncompliance”

1) Total Chlorine

a. Record the results from the sample under the sample measurement row of the Total residual chlorine row in then maximum quantity column.

b. If the level is

i. LESS THAN 0.10 mg/l, report the result as “<0.10 micrograms/milliliter”

ii. GREATER THAN 0.10 mg/l but LESS THAN 0.20 mg/l, record the ACTUAL result.

iii. 0.20 mg/l or above, it is in noncompliance. Record the ACTUAL result

2) Dissolved Oxygen

a. Check and calibrate DO meter in accordance with manufacturers instructions

b. Measure sample and record the result in the sample row of the Dissolved oxygen row under the quantity minimum.

c. The lower limit for this test is 5.0 mg/l. If it is below this, report it as non-compliance

3) pH

a. Calibrate and document calibration

b. Record sample results on the data sheet in the pH row, under quality average.

c. If the pH is less then 6.5 or greater the 8.5, report it as non-compliance, Record the

ACTUAL result.

4) Temperature Differential

a. Insert probe into the designated point A (Outfall 001), and record the temperature as

Temperature A.

b. Move downstream to point B (As designated on the attached diagram), record the temperature at point B as temperature B.

c. Compare Temperature A to Temperature B and write the corresponding entry in the maximum quantity column.

i. Temperature A > Temperature B enter the result as “Noncompliance”

ii. Temperature A = Temperature B enter the results as “0”

iii. Temperature A < Temperature B enter the result as “<0”

Layout of Sampling points for NIH NPDES Permit

F Legend

Stormwater Features

0 9 18 27 364.5 Feet

This is Point A. It is located at the base of Outfall 001

This is Point B. It is located in front of the rocks at the end of the first pool. (Only use when Temp of point A > 90)

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