Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 1

Michael J. Sligar

Chief Operator

NYS ELAP

Certified Lab

Lab ID# 10166

William T. Field Memorial

Pollution Control Plant

SPDES Permit NY 002 5984

700 William T. Field Drive

Watertown, New York 13601

phone: (315) 785-7840

fax: (315) 779-2095

e mail: MSligar@watertown-ny.gov

Joseph Castro

O & M Supervisor

Sidney A. Pond

Lab Technician

March 11, 2010

Mr. Brian F.R. Baker

Chief, Wastewater Permits – Water Section

Division of Water, NYS Department of Environmental Conservation

625 Broadway

Albany, NY 12233-3505

RE: Short-Term High-Intensity Monitory Program

SPDES Permit NY 002 5984

Required due to deliveries of Flowback Wastewater

From the Ross #1 Natural Gas Well developed in Otsego County

Dear Mr. Baker:

Attached to this letter is the order issued by you dated December 29, 2009 requiring the above 

referenced monitoring program. Attached also is the report completing the requirements of the 

order.

Sincerely,

Michael J. Sligar

Chief Operator

Cc: Regional Water Engineer, NYSDEC Region 6, Watertown, NY

Mr. Orville Cole, President GASTEM USA, 1155 University, Suite 1215, Montreal 

(Quebec) H3B 3A7

Mary Corriveau, City Manager, Watertown, NY

Kurt Hauk, City Engineer, Watertown, NY
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 2

New York State Department of Environmental Conservation

Division of Water

Bureau of Water Permits, 4th Floor

625 Broadway, Albany, New York 12233-3505

Phone: (518) 402-8111 • FAX: (518) 402-9029

Date: December 29, 2009

Michael J. Sligar, Chief Operator

William T. Field Memorial Pollution Control Plant

700 William T. Field Drive

Watertown, NY 13601

Dear Mr. Sligar:

Re: New Discharge Notification

By Letter Dated December 18, 2009

SPDES Permit NY 002 5984

This letter is to notify you that the above noted discharge may proceed without modification to the above 

noted permit.

Under 6 NYCRR Part 750 and 40 CFR 122.42, Publicly Owned Treatment Works (POTW) permittees are 

required to notify the New York State Department of Environmental Conservation (NYSDEC) when they will be 

accepting 'new or increased discharges of pollutants'. Under 6 NYCRR Part 750-2.9 the NYSDEC may prohibit the 

discharge until the SPDES permit is modified to account for the new discharge. It is not necessary to modify your 

SPDES permit to account for the above noted discharge.

This approval is solely for the discharge of approximately 35,000 gallons of flowback water being held at the 

“Ross 1” well site from a vertical gas well drilled into the Utica Shale formation and developed by Covalent Energy. 

Departmental approval will be required for any other sources of well development, flowback, or production water. 

This source of wastewater shall be processed in accordance with the above request and as memorialized on the 

following page.

In accordance with Section 308 of the Clean Water Act, 33 USC Section 1318, we are requiring the Short 

Term High Intensity Monitoring Program detailed on the attached page to monitor the impacts of this source of 

wastewater on the facility’s discharge, assure that the receiving water is not adversely impacted, and assure that the 

facility’s wastewater permit does not require modification.

If you have any questions or comments, please do not hesitate to call me at (518) 402-8124

Sincerely,

/s

Brian F. R. Baker

Chief, Wastewater Permits - Western Section

cc: Regional Water Engineer - Region 6

W. Mirabile

K. Kosinski

J. Dahl, DMN

File

Alexander B 

Grannis

Commissioner
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 3

Short-term High-Intensity Monitoring Program

SPDES Permit NY 002 5984

Background: 

1. The analytes of concern detailed in the TestAmerica report are Total Dissolved Solids and Chlorides, 

concentrations of which in the flowback water are 6,460 mg/l and 5,070 mg/l, respectively. The 35,000 gallons of 

flowback water would therefore contain 1,886 pounds of total dissolved solids and 1,480 pounds of chlorides. The 

flowback water will be discharged into the anaerobic digester for solids removal, with the supernatant discharged 

into the WWTP headworks for additional treatment prior to discharge.

2. It is noted that the chemicals present in the biocide that was used during well development, specifically 

Dibromoacetonitrile and 2,2-Dibromo-3-nitrilopropionamide, have applicable water quality standards but no 

approved laboratory methods. These chemicals are not expected present in the discharge at levels that would cause 

or contribute to water quality standards violations. The flowback water was tested against the microbial populations 

that exist in the POTW activated sludge aeration tanks and in the lead primary anaerobic digester, and indicated that 

toxicity would not be an issue at the WWTP. However, to be conservative, acute toxicity testing of the effluent will 

be required as part of the STHIM program.

3. The Watertown POTW analyzes and records influent and effluent 24 hour composite sampling for total 

solids and suspended solids a minimum of twice weekly. Further, the POTW has initiated sampling and analyzing 

the anaerobic digesters for chlorides in anticipation of this source of wastewater. The routine analyses already being 

conducted enable the tracking of dissolved solids (total solids minus suspended solids) for the POTW influent and 

effluent, and of chlorides in the digesters. It is proposed that said sampling and analyses continue through one cycle 

of the digester system hydraulic detention time of approximately four weeks, followed by one week of postprocessing sampling. Further, routine daily recordings of digester gas production will offer information relative to 

toxicity and temperature impacts. 

4. The permittee shall therefore conduct sampling in accordance with the following table: 

 Compliance Action Duration

The permittee shall conduct influent and effluent sampling for the following parameters. 

Sampling shall be at the interval specified below. The permittee submit the results of the 

analyses along with the daily flow:

Parameter Sampling Frequency Sample Type 

Solids, Total Twice per week 24 hr composite

Solids, Total Dissolved Twice per week 24 hr composite

Chloride Twice per week 24 hr composite

Toluene Twice per week Grab

Toxicity, Acute (effluent only) See a) below See a) below

The permittee shall submit a report detailing the above sampling results, and chloride sampling 

results from the anaerobic digesters, to this Department within 90 days of the date of discharge 

of the flowback water into the digester. 

35 days (5 weeks), 

beginning with the 

date of discharge of 

flowback water into 

the anaerobic digester
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 4

a) A minimum of one acute WET test shall be conducted on the effluent from the treatment plant between 3 

weeks and 5 weeks following the discharge of flowback water into the anaerobic digester. The test 

shall be conducted in accordance with 40 CFR Part 136 and TOGS 1.3.2. The test species shall be 

Ceriodaphnia dubia (water flea - invertebrate) and Pimephales promelas (fathead minnow - vertebrate). 

Receiving water collected upstream from the discharge should be used for dilution. All tests conducted 

should be static-renewal (two 24 hr composite samples with one renewal for Acute tests). The appropriate 

dilution series bracketing the IWC and including one exposure group of 100% effluent should be used to 

generate a definitive test endpoint, otherwise an immediate rerun of the test is required. The ratio of critical 

receiving water flow to discharge flow (i.e. dilution ratio) is 32:1 for acute.

b) The permittee shall also sample the flowback water for the above parameters (with the exception of acute 

toxicity) during the beginning, middle, and end of the discharge into the anaerobic digesters.

c) The permittee shall submit copies of any document required by the above schedule of compliance to 

NYSDEC Regional Water Engineer and to the Bureau of Water Permits, 625 Broadway, Albany, N.Y. 

12233-3505, unless otherwise specified in this permit or in writing by the Department.
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 5

Table of Contents

Executive Summary........................................................................................................................ 6

Table 1: Results of Analyses on the Contents of Delivered Tankers. ....................................... 7

Table 2: Comparison of Typical STP Loadings with Composite Tanker Deliveries................ 8

Figure 1: Digester Gas Productivity .......................................................................................... 9

Appendix A – STP Loadings of Selected Analytes – Tables 3 through 14.................................. 10

Table 3: Influents A & B Solids Concentrations, January 2010.............................................. 11

Table 4: Effluents A & B Solids Concentrations, January 2010 ............................................. 12

Table 5: Influents A & B Solids Concentrations, February 2010............................................ 13

Table 6: Effluents A & B Solids Concentration, February 2010............................................. 14

Table 7: Influent and Effluent Solids Mass Loading, January 2010........................................ 15

Table 8: Influent and Effluent Solids Mass Loading, February 2010...................................... 16

Table 9: Influent, Effluent, and Digester Chloride Concentrations, January 2010.................. 17

Table 10: Influent, Effluent, and Digester Chloride Concentrations, February 2010.............. 18

Table 11: Influent and Effluent Chloride Mass Loading, January 2010.................................. 19

Table 12: Influent and Effluent Chloride Mass Loading, February 2010................................ 20

Table 13: Influent and Effluent Toluene Concentrations, January 2010 ................................. 21

Table 14: Influent and Effluent Toluene Concentrations, February 2010 ............................... 22

Appendix B – Tanker Deliveries – Lab Analyses ........................................................................ 23

Appendix C – STP Effluent – Acute Toxicity.............................................................................. 24

Appendix D – STP Influent and Effluent – Lab Analyses............................................................ 25
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 6

Report

March 5, 2010

Short-Term, High-Intensity Monitoring Program

Required by the New Discharge Notification

Issued by NYS Department of Environmental Conservation

Division of Water, Bureau of Water Permits

Notification Dated: December 29, 2009

Submitted by:

POTW, City of Watertown, NY

SPDES NY 002 5984

Executive Summary

On December 29, 2009 the New York State Department of Environmental Conservation 

(NYSDEC) approved the City of Watertown’s Pollution Control Plant (the STP) as a disposal 

site for “flowback” wastewater extracted from the Ross #1 well. This deep vertical well was 

developed to extract natural gas from Utica Shale deposits in Otsego County, NY. 

Approximately 35,000 gallons were delivered to the STP on January 5, 6 & 7, 2010 via seven 

tankers (3 shipments received each the 5th and 6th). The seventh tanker carried only 250 gallons 

(the wash water that was used to clean the storage tanks that had held the well flowback water 

the months it had been stored at the Otsego site).

Exhaustive testing had been accomplished on the flowback water prior to the approval by the 

NYSDEC. This testing had formed the basis by which the approval was granted. Based upon 

the known quantity and character of the flowback water, assurance was obtained that the City’s 

STP could successfully treat and dispose of the wastewater. As a confirmation, the NYSDEC 

required the City to conduct representative and targeted sampling of the flowback water received 

as well as subsequent performances of the STP for a 35 day period commencing with the receipt 

of the first tanker. This report summarizes the results of the ordered testing.
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 7

Four analytes had been selected for this testing: total solids, dissolved solids, chloride, 

toluene1. Additionally, acute toxicity testing of the STP effluent was also ordered to be 

conducted “...between 3 weeks and 5 weeks following the discharge of flowback water into 

the anaerobic digester..”. Table 1 below presents the loading on the STP of these four analytes 

delivered by tankers in both concentration (milligram per liter, mg/l) and mass (pounds).

Chloride Toluene Total Solids Sus. Solids Dis. Solids

1 5,460 6,698 0.052 44,850 420 44,430

2 5,460 5,198 0.047 9,876 110 9,766

3 5,460 9,397 < 0.010 15,526 550 14,976

4 5,460 10,197 0.036 17,562 130 17,432

5 5,460 9,997 0.031 16,106 140 15,966

6 5,460 8,897 0.027 15,568 250 15,318

Chloride Toluene Total Solids Sus. Solids Dis. Solids

1 5,460 305 0.002 2,042 19 2,023

2 5,460 237 0.002 450 5 445

3 5,460 428 xxx 707 25 682

4 5,460 464 0.002 800 6 794

5 5,460 455 0.001 733 6 727

6 5,460 405 0.001 709 11 698

Total 32,760 2,294 0.009 5,441 73 5,368

Average 5,460 382 0.001 907 12 895

mg/l

pounds

Tanker # gallons

Tanker # gallons

Table 1: Results of Analyses on the Contents of Delivered Tankers.

 

1 Toluene (CH3C6H5), sometimes referred to as methylbenzene, is a colorless, refractive, flammable liquid used in 

blending fuels, solvents for paints, gums, resins, rubber cement, etc. Certain derivatives are employed in the 

manufacture of saccharin, medicines, dyes, and perfumes. 

Toluene is the “T” in the routine “BTEX” scan for the presence of petroleum products in contaminated wastewater. 

(BTEX = Benzene, Toluene, Ethylbenzene, Xylene)
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 8

The sampling results presented in this report show that the loading indicated in Table 1 was not 

significant as compared with routine daily loadings at the STP and that the STP performances 

were not impacted in any manner by them. Further, the relevant conclusion of the toxicity 

testing is that no mortalities or effects were noted in any of the treatments tested for either the 

vertebrate species or the invertebrate species. 

Typical Loadings on the STP for targeted analytes:

Appendix A presents a series of Tables which summarize the loadings on the STP from its two 

influent streams:

Influent A: City of Watertown proper; Town of Watertown Sewer Districts 2, 3, 4, & 5; 

Route 3 Sewer District (northeast of the City)

Influent B: DANC pipeline which includes Fort Drum, Villages of Great Bend, Felts Mills, 

Black River; and the Sewer Districts located along the DANC pipeline in the 

Towns of Pamelia and LeRay.

As indicated by the summaries, the typical influent and subsequent effluent loadings experienced 

by the STP for the targeted analytes are:

Total 

Solids

Suspended 

Solids

Dissolved 

Solids

Toluene Chloride

Typical STP 

Influent

(pounds per day)

89,410 19,303 70,107 < 0.34 24,273

Typical STP 

Effluent

(pounds per day)

78,202 1,481 76,721 < 0.15 25,268

Total Tanker 

Deliveries from 

Ross #1 (pounds)

5,441 73 5,368 0.009 2,294

Tanker % of 

typical STP daily 

loading

3.1% 0.2% 3.8% 1.3% 4.8%

Table 2: Comparison of Typical STP Loadings with Composite Tanker Deliveries

(Tanker deliveries were spread over two days – total tanker deliveries must be applied 

against twice the typical daily loading to yield the appropriate %)
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 9

Figure 1: Digester Gas Productivity 

during the 35 day period of the Short Term Monitoring Program

Natural Gas production in the anaerobic digesters remains low because of reduced organic 

loading on the digesters. The majority of the volatile solids are reserved for incineration to 

preserve the BTU value in the sludge and hence, reduce the requirement for supplemental fuels 

(#2 fuel oil employed the expense of which cannot be offset by the alternative natural gas 

production). The natural gas that was produced reflects the cyclic loadings of weekday vs 

weekends typical of the facility. Further, the consistency of the loading throughout the duration 

of the test indicates that the digesters were unaffected by the Ross #1 deliveries on January 5th

and 6th. 
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 10

Appendix A – STP Loadings of Selected 

Analytes – Tables 3 through 14
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 11

Inf A (act) Inf B Tot Sol Sus Sol Dis Sol Tot Sol Sus Sol Dis Sol

var 317 var 320 var 405 var 404 (TS-SS) var 54 var 52 (TS-SS)

Fri, Jan 01 9.18 1.58 972 121 850 818 112 706

Sat, Jan 02 8.66 1.58

Sun, Jan 03 8.84 1.76

Mon, Jan 04 9.02 1.88 914 153 761 992 236 756

Tue, Jan 05 8.99 1.88

Wed, Jan 06 8.75 1.95

Thu, Jan 07 8.72 1.95 1,006 338 669 896 196 700

Fri, Jan 08 8.52 1.83

Sat, Jan 09 8.29 1.80

Sun, Jan 10 8.06 1.95 811 181 631 864 188 676

Mon, Jan 11 8.26 2.00

Tue, Jan 12 8.52 1.93

Wed, Jan 13 8.87 1.96 813 176 637 836 216 620

Thu, Jan 14 9.19 2.12

Fri, Jan 15 9.34 1.91

Sat, Jan 16 8.78 1.85 834 163 671 730 144 586

Sun, Jan 17 8.81 1.81

Mon, Jan 18 10.17 2.02

Tue, Jan 19 9.64 2.12 901 269 632 752 180 572

Wed, Jan 20 9.42 1.97

Thu, Jan 21 9.21 2.00

Fri, Jan 22 9.19 1.94 856 170 686 784 224 560

Sat, Jan 23 8.58 1.85

Sun, Jan 24 7.52 1.72

Mon, Jan 25 24.18 3.80 815 370 446 662 160 502

Tue, Jan 26 22.05 2.71

Wed, Jan 27 16.80 2.44

Thu, Jan 28 15.55 2.30 747 105 642 880 140 740

Fri, Jan 29 13.35 1.64

Sat, Jan 30 11.71 1.99

Sun, Jan 31 11.21 2.09 724 75 649 804 128 676

Average 10.56 2.01 854 193 661 820 175 645

CY 2010

Flow (MGD) Influent A (mg/l) Influent B (mg/l)

Table 3: Influents A & B Solids Concentrations, January 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 12

Eff A (act) Eff B Tot Sol Sus Sol Dis Sol Tot Sol Sus Sol Dis Sol

var 316 var 321 var 39 var 37 (TS-SS) var 69 var 67 (TS-SS)

Fri, Jan 01 6.14 4.61 782 16 767 774 3 771

Sat, Jan 02 5.92 4.32

Sun, Jan 03 6.11 4.48

Mon, Jan 04 6.30 4.60 812 24 789 710 3 707

Tue, Jan 05 6.29 4.58

Wed, Jan 06 6.22 4.47

Thu, Jan 07 6.20 4.47 780 26 754 772 3 769

Fri, Jan 08 5.98 4.37

Sat, Jan 09 5.93 4.16

Sun, Jan 10 5.73 4.28 612 25 587 798 3 795

Mon, Jan 11 5.96 4.30

Tue, Jan 12 6.16 4.28

Wed, Jan 13 6.26 4.56 678 25 653 686 2 684

Thu, Jan 14 6.66 4.65

Fri, Jan 15 6.81 4.43

Sat, Jan 16 5.94 4.68 732 13 720 836 2 834

Sun, Jan 17 6.25 4.37

Mon, Jan 18 7.42 4.77

Tue, Jan 19 7.04 4.72 776 22 754 786 2 784

Wed, Jan 20 6.77 4.61

Thu, Jan 21 6.72 4.48

Fri, Jan 22 5.88 5.25 772 14 758 810 3 807

Sat, Jan 23 6.09 4.35

Sun, Jan 24 5.35 3.88

Mon, Jan 25 20.44 7.53 748 29 719 632 2 630

Tue, Jan 26 16.19 8.58

Wed, Jan 27 11.35 7.88

Thu, Jan 28 11.03 6.82 736 16 720 772 4 768

Fri, Jan 29 8.54 6.45

Sat, Jan 30 8.04 5.66

Sun, Jan 31 7.68 5.62 634 13 622 638 2 636

Average 7.53 5.04 733 20 713 747 3 744

CY 2010

Flow (MGD) Effluent A (mg/l) Effluent B (mg/l)

Table 4: Effluents A & B Solids Concentrations, January 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 13

Inf A (act) Inf B Tot Sol Sus Sol Dis Sol Tot Sol Sus Sol Dis Sol

var 317 var 320 var 405 var 404 (TS-SS) var 54 var 52 (TS-SS)

Mon, Feb 01 10.52 2.17

Tue, Feb 02 10.80 2.10

Wed, Feb 03 10.50 2.10 989 154 836 920 180 740

Thu, Feb 04 9.93 2.07

Fri, Feb 05 9.37 2.01

Sat, Feb 06 9.05 1.80 647 26 620 774 48 726

Sun, Feb 07 8.80 1.90

Mon, Feb 08 8.87 1.94

Tue, Feb 09 9.29 1.91 830 284 546 798 168 630

Wed, Feb 10 8.71 1.94

Thu, Feb 11 8.51 1.91

Fri, Feb 12 8.02 1.79 791 203 587 770 140 630

Sat, Feb 13 7.72 1.69

Sun, Feb 14 7.48 1.72

Mon, Feb 15 7.23 1.77 813 182 631 776 184 592

Tue, Feb 16 7.89 1.89

Wed, Feb 17 8.09 1.97

Thu, Feb 18 8.13 1.92 935 191 744 860 176 684

Fri, Feb 19 7.85 1.88

Sat, Feb 20 7.80 1.78

Sun, Feb 21 10.01 1.83 797 212 585 786 208 578

Mon, Feb 22 7.10 1.95

Tue, Feb 23 8.08 2.01

Wed, Feb 24 9.16 2.08 1,357 204 1,153 818 172 646

Thu, Feb 25 10.76 1.95

Fri, Feb 26 13.89 2.00

Sat, Feb 27 14.05 1.91 1,024 72 952 822 172 650

Sun, Feb 28 13.99 2.07

Average 9.34 1.93 909 170 739 814 161 653

CY 2010

Flow (MGD) Influent A (mg/l) Influent B (mg/l)

Table 5: Influents A & B Solids Concentrations, February 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 14

Eff A (act) Eff B Tot Sol Sus Sol Dis Sol Tot Sol Sus Sol Dis Sol

var 316 var 321 var 39 var 37 (TS-SS) var 69 var 67 (TS-SS)

Mon, Feb 01 7.34 5.35

Tue, Feb 02 7.44 5.45

Wed, Feb 03 7.30 5.30 846 23 824 794 2 792

Thu, Feb 04 6.93 5.07

Fri, Feb 05 6.59 4.78

Sat, Feb 06 6.30 4.55 630 14 616 654 1 653

Sun, Feb 07 6.23 4.47

Mon, Feb 08 6.26 4.54

Tue, Feb 09 6.49 4.71 678 29 649 652 2 650

Wed, Feb 10 6.25 4.39

Thu, Feb 11 6.14 4.28

Fri, Feb 12 5.82 3.99 672 23 649 646 2 644

Sat, Feb 13 5.57 3.85

Sun, Feb 14 5.37 3.83

Mon, Feb 15 5.07 3.93 656 24 632 676 2 674

Tue, Feb 16 5.79 3.99

Wed, Feb 17 5.90 4.16

Thu, Feb 18 5.83 4.22 824 28 796 776 1 775

Fri, Feb 19 5.72 4.01

Sat, Feb 20 5.73 3.85

Sun, Feb 21 8.05 3.80 694 23 671 762 2 760

Mon, Feb 22 5.04 4.02

Tue, Feb 23 5.64 4.45

Wed, Feb 24 6.47 4.77 1,008 33 975 934 2 932

Thu, Feb 25 7.47 5.23

Fri, Feb 26 9.86 6.03

Sat, Feb 27 9.60 6.35 932 16 916 1,000 3 997

Sun, Feb 28 9.44 6.62

Average 6.63 4.64 771 24 747 766 2 764

CY 2010

Flow (MGD) Effluent A (mg/l) Effluent B (mg/l)

Table 6: Effluents A & B Solids Concentration, February 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 15

Tot Sol Sus Sol Dis Sol Tot Sol Sus Sol Dis Sol

var 425 var 421 (TS - SS) var 431 var 430 (TS - SS)

Fri, Jan 01 10.76 85,142 10,771 74,371 69,837 902 68,935

Sat, Jan 02 10.23

Sun, Jan 03 10.59

Mon, Jan 04 10.90 84,317 15,214 69,102 69,879 1,349 68,530

Tue, Jan 05 10.86

Wed, Jan 06 10.69

Thu, Jan 07 10.67 87,742 27,743 60,000 69,095 1,464 67,631

Fri, Jan 08 10.35

Sat, Jan 09 10.09

Sun, Jan 10 10.01 68,551 15,186 53,365 57,711 1,313 56,398

Mon, Jan 11 10.25

Tue, Jan 12 10.44

Wed, Jan 13 10.83 73,818 16,572 57,246 61,522 1,418 60,104

Thu, Jan 14 11.31

Fri, Jan 15 11.24

Sat, Jan 16 10.62 72,274 14,138 58,136 68,901 682 68,219

Sun, Jan 17 10.62

Mon, Jan 18 12.18

Tue, Jan 19 11.76 85,720 24,821 60,899 76,513 1,386 75,127

Wed, Jan 20 11.39

Thu, Jan 21 11.20

Fri, Jan 22 11.13 78,249 16,635 61,613 73,301 809 72,492

Sat, Jan 23 10.43

Sun, Jan 24 9.23

Mon, Jan 25 27.97 185,290 79,575 105,715 167,201 5,149 162,052

Tue, Jan 26 24.76

Wed, Jan 27 19.23

Thu, Jan 28 17.85 113,759 16,338 97,421 111,596 1,710 109,885

Fri, Jan 29 14.99

Sat, Jan 30 13.70

Sun, Jan 31 13.30 81,696 9,204 72,492 70,501 895 69,606

Average 12.57 92,414 22,382 70,033 81,460 1,553 79,907

CY 2010

Total

POTW

Flow

Influent (pounds/day) Effluent (pounds/day)

Table 7: Influent and Effluent Solids Mass Loading, January 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 16

Tot Sol Sus Sol Dis Sol Tot Sol Sus Sol Dis Sol

var 425 var 421 (TS - SS) var 431 var 430 (TS - SS)

Mon, Feb 01 12.69

Tue, Feb 02 12.90

Wed, Feb 03 12.60 102,706 16,593 86,114 86,590 1,476 85,114

Thu, Feb 04 11.99

Fri, Feb 05 11.37

Sat, Feb 06 10.85 60,430 2,719 57,711 57,903 781 57,123

Sun, Feb 07 10.70

Mon, Feb 08 10.81

Tue, Feb 09 11.20 77,020 24,690 52,330 62,289 1,679 60,610

Wed, Feb 10 10.65

Thu, Feb 11 10.41

Fri, Feb 12 9.81 64,355 15,685 48,670 54,087 1,189 52,899

Sat, Feb 13 9.41

Sun, Feb 14 9.20

Mon, Feb 15 9.00 60,457 13,697 46,760 49,898 1,087 48,811

Tue, Feb 16 9.78

Wed, Feb 17 10.06

Thu, Feb 18 10.05 77,175 15,792 61,383 67,364 1,411 65,953

Fri, Feb 19 9.73

Sat, Feb 20 9.58

Sun, Feb 21 11.84 78,540 20,907 57,633 70,701 1,633 69,067

Mon, Feb 22 9.05

Tue, Feb 23 10.09

Wed, Feb 24 11.24 117,873 18,561 99,312 91,549 1,844 89,705

Thu, Feb 25 12.71

Fri, Feb 26 15.89

Sat, Feb 27 15.95 133,085 11,217 121,868 127,598 1,440 126,158

Sun, Feb 28 16.06

Average 11.27 85,738 15,540 70,198 74,220 1,393 72,827

CY 2010

Total

POTW

Flow

Influent (pounds/day) Effluent (pounds/day)

Table 8: Influent and Effluent Solids Mass Loading, February 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 17

Influent A Influent B Effluent A Effluent B Pri Digester Sec Digester

var 594 var 595 var 596 var 597 var 598 var 298

Fri, Jan 01

Sat, Jan 02

Sun, Jan 03

Mon, Jan 04

Tue, Jan 05

Wed, Jan 06 370 460

Thu, Jan 07 700 475

Fri, Jan 08

Sat, Jan 09

Sun, Jan 10 150 165 175 195 533 367

Mon, Jan 11

Tue, Jan 12

Wed, Jan 13 165 195 190 183 433 418

Thu, Jan 14

Fri, Jan 15

Sat, Jan 16

Sun, Jan 17

Mon, Jan 18

Tue, Jan 19 270 155 258 260 390 370

Wed, Jan 20

Thu, Jan 21

Fri, Jan 22 220 170 250 235 500 433

Sat, Jan 23

Sun, Jan 24

Mon, Jan 25 250 160 250 190 467 467

Tue, Jan 26

Wed, Jan 27

Thu, Jan 28 240 243 250 243 483 430

Fri, Jan 29

Sat, Jan 30

Sun, Jan 31 186 220 190 198 467 483

CY 2010

Chloride (mg/l)

Table 9: Influent, Effluent, and Digester Chloride Concentrations, January 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 18

Influent A Influent B Effluent A Effluent B Pri Digester Sec Digester

var 594 var 595 var 596 var 597 var 598 var 298

Mon, Feb 01

Tue, Feb 02

Wed, Feb 03 280 237 280 253 412 462

Thu, Feb 04

Fri, Feb 05

Sat, Feb 06

Sun, Feb 07

Mon, Feb 08

Tue, Feb 09 169 183 185 175 330 410

Wed, Feb 10

Thu, Feb 11

Fri, Feb 12 160 180 185 170 290 390

Sat, Feb 13

Sun, Feb 14

Mon, Feb 15

Tue, Feb 16

Wed, Feb 17

Thu, Feb 18

Fri, Feb 19

Sat, Feb 20

Sun, Feb 21

Mon, Feb 22

Tue, Feb 23

Wed, Feb 24

Thu, Feb 25

Fri, Feb 26

Sat, Feb 27

Sun, Feb 28

CY 2010

Chloride (mg/l)

Table 10: Influent, Effluent, and Digester Chloride Concentrations, February 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 19

CY 2010

Inf A (act) Inf B Eff A Eff B Inf A Inf B Eff A Eff B

var 317 var 320 var 316 var 321 var 1040 var 1041 var 1042 var 1043

Fri, Jan 01 9.18 1.58 6.14 4.61

Sat, Jan 02 8.66 1.58 5.92 4.32

Sun, Jan 03 8.84 1.76 6.11 4.48

Mon, Jan 04 9.02 1.88 6.30 4.60

Tue, Jan 05 8.99 1.88 6.29 4.58

Wed, Jan 06 8.75 1.95 6.22 4.47

Thu, Jan 07 8.72 1.95 6.20 4.47

Fri, Jan 08 8.52 1.83 5.98 4.37

Sat, Jan 09 8.29 1.80 5.93 4.16

Sun, Jan 10 8.06 1.95 5.73 4.28 10,084.3 2,676.5 8,357.1 6,960.6

Mon, Jan 11 8.26 2.00 5.96 4.30

Tue, Jan 12 8.52 1.93 6.16 4.28

Wed, Jan 13 8.87 1.96 6.26 4.56 12,201.1 3,187.5 9,926.6 6,962.6

Thu, Jan 14 9.19 2.12 6.66 4.65

Fri, Jan 15 9.34 1.91 6.81 4.43

Sat, Jan 16 8.78 1.85 5.94 4.68

Sun, Jan 17 8.81 1.81 6.25 4.37

Mon, Jan 18 10.17 2.02 7.42 4.77

Tue, Jan 19 9.64 2.12 7.04 4.72 21,711.2 2,740.5 15,151.8 10,234.8

Wed, Jan 20 9.42 1.97 6.77 4.61

Thu, Jan 21 9.21 2.00 6.72 4.48

Fri, Jan 22 9.19 1.94 5.88 5.25 16,864.9 2,743.4 12,263.3 10,279.7

Sat, Jan 23 8.58 1.85 6.09 4.35

Sun, Jan 24 7.52 1.72 5.35 3.88

Mon, Jan 25 24.18 3.80 20.44 7.53 50,405.9 5,064.0 42,612.2 11,936.8

Tue, Jan 26 22.05 2.71 16.19 8.58

Wed, Jan 27 16.80 2.44 11.35 7.88

Thu, Jan 28 15.55 2.30 11.03 6.82 31,118.5 4,661.2 22,990.9 13,821.5

Fri, Jan 29 13.35 1.64 8.54 6.45

Sat, Jan 30 11.71 1.99 8.04 5.66

Sun, Jan 31 11.21 2.09 7.68 5.62 17,386.1 3,834.7 12,172.7 9,273.8

Average 10.56 2.01 7.53 5.04 22,824.6 3,558.3 17,639.2 9,924.3

Flow (MGD) Chloride (pounds per day)

Table 11: Influent and Effluent Chloride Mass Loading, January 2010

NOTE: Approx. 760 pounds per day of chlorides are added to the secondary clarifiers 

daily as a component of the Ferric Chloride (FeCl3) process chemical used for Total 

Phosphorus control.
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 20

CY 2010

Inf A (act) Inf B Eff A Eff B Inf A Inf B Eff A Eff B

var 317 var 320 var 316 var 321 var 1040 var 1041 var 1042 var 1043

Mon, Feb 01 10.52 2.17 7.34 5.35

Tue, Feb 02 10.80 2.10 7.44 5.45

Wed, Feb 03 10.50 2.10 7.30 5.30 24,514.9 4,150.8 17,051.6 11,174.7

Thu, Feb 04 9.93 2.07 6.93 5.07

Fri, Feb 05 9.37 2.01 6.59 4.78

Sat, Feb 06 9.05 1.80 6.30 4.55

Sun, Feb 07 8.80 1.90 6.23 4.47

Mon, Feb 08 8.87 1.94 6.26 4.54

Tue, Feb 09 9.29 1.91 6.49 4.71 13,089.0 2,915.1 10,006.5 6,875.7

Wed, Feb 10 8.71 1.94 6.25 4.39

Thu, Feb 11 8.51 1.91 6.14 4.28

Fri, Feb 12 8.02 1.79 5.82 3.99 10,702.0 2,679.6 8,972.1 5,657.0

Sat, Feb 13 7.72 1.69 5.57 3.85

Sun, Feb 14 7.48 1.72 5.37 3.83

Mon, Feb 15 7.23 1.77 5.07 3.93

Tue, Feb 16 7.89 1.89 5.79 3.99

Wed, Feb 17 8.09 1.97 5.90 4.16

Thu, Feb 18 8.13 1.92 5.83 4.22

Fri, Feb 19 7.85 1.88 5.72 4.01

Sat, Feb 20 7.80 1.78 5.73 3.85

Sun, Feb 21 10.01 1.83 8.05 3.80

Mon, Feb 22 7.10 1.95 5.04 4.02

Tue, Feb 23 8.08 2.01 5.64 4.45

Wed, Feb 24 9.16 2.08 6.47 4.77

Thu, Feb 25 10.76 1.95 7.47 5.23

Fri, Feb 26 13.89 2.00 9.86 6.03

Sat, Feb 27 14.05 1.91 9.60 6.35

Sun, Feb 28 13.99 2.07 9.44 6.62

Average 9.34 1.93 6.63 4.64 16,102.0 3,248.5 12,010.1 7,902.5

Flow (MGD) Chloride (pounds per day)

Table 12: Influent and Effluent Chloride Mass Loading, February 2010

NOTE: Approx. 760 pounds per day of chlorides are added to the secondary clarifiers 

daily as a component of the Ferric Chloride (FeCl3) process chemical used for Total 

Phosphorus control.
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 21

Influent A Influent B Effluent A Effluent B

var 1021 var 1025 var 1029 var 1033

Fri, Jan 01

Sat, Jan 02

Sun, Jan 03

Mon, Jan 04

Tue, Jan 05

Wed, Jan 06

Thu, Jan 07 2.10 2.70 1.80 <1.00

Fri, Jan 08

Sat, Jan 09

Sun, Jan 10 13.00 2.70 1.70 <1.00

Mon, Jan 11

Tue, Jan 12

Wed, Jan 13 <2.00 2.10 1.90 <1.00

Thu, Jan 14

Fri, Jan 15

Sat, Jan 16

Sun, Jan 17

Mon, Jan 18

Tue, Jan 19 2.70 2.60 5.70 <1.00

Wed, Jan 20

Thu, Jan 21

Fri, Jan 22 <1.00 3.30 1.40 <1.00

Sat, Jan 23

Sun, Jan 24

Mon, Jan 25 2.30 20.00 1.60 <1.00

Tue, Jan 26

Wed, Jan 27

Thu, Jan 28 <1.00 2.80 <1.00 <1.00

Fri, Jan 29

Sat, Jan 30

Sun, Jan 31 1.20 2.90 <1.00 <1.00

CY 2010

Toluene (ppb)

Table 13: Influent and Effluent Toluene Concentrations, January 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 22

Influent A Influent B Effluent A Effluent B

var 1021 var 1025 var 1029 var 1033

Mon, Feb 01

Tue, Feb 02

Wed, Feb 03 1.30 2.30 <1.00 <1.00

Thu, Feb 04

Fri, Feb 05

Sat, Feb 06

Sun, Feb 07

Mon, Feb 08

Tue, Feb 09 1.90 2.10 1.00 <1.00

Wed, Feb 10

Thu, Feb 11

Fri, Feb 12

Sat, Feb 13

Sun, Feb 14

Mon, Feb 15

Tue, Feb 16

Wed, Feb 17

Thu, Feb 18

Fri, Feb 19

Sat, Feb 20

Sun, Feb 21

Mon, Feb 22

Tue, Feb 23

Wed, Feb 24

Thu, Feb 25

Fri, Feb 26

Sat, Feb 27

Sun, Feb 28

CY 2010

Toluene (ppb)

Table 14: Influent and Effluent Toluene Concentrations, February 2010
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 23

Appendix B – Tanker Deliveries – Lab 

Analyses
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 24

Appendix C – STP Effluent – Acute Toxicity
Report: Short-Term, High-Intensity Monitoring Program

Submitted by: POTW, City of Watertown, NY; SPDES NY 002 5984 Page 25

Appendix D – STP Influent and Effluent –

Lab Analyses