5 2025

Delaware Engineering, D.P.C.

28 Madison Avenue Extension Albany, New York 12203

Tel: 518.452.1290 Fax: 518.452.1335

July 11, 2025

The Honorable Mayor Karen Smythe Village of Red Hook 7467 S Broadway, Red Hook, NY 12571

Subject: Village of Red Hook WWTP – May 2025 Sewer Report

Dear Mayor Smythe:

Significant mechanical repairs and operational changes were performed at the WWTP in May 2025 by the Village’s DPW and our staff that resulted in the UV units returning to operation on May 13, 2025 and the Old Plant being placed in operation on May 28, 2025.

In May, the hydraulics of the WWTP and the internal hydraulics of the Purestream treatment unit were tested to determine if the plant can operate as designed and/or as provided. Our conclusion is that it cannot and that modifications are needed to operate the plant and meet the discharge limits.

The major items that need modification include replacing the EQ pumps by removing the three 35 gpm pumps and replacing them with two 25 gpm pumps and increasing the available EQ/Surge tank capacity to allow for this lower flow rate.

The lower influent pumping flow rate is needed because the Purestream plant cannot operate at a flow rate above 35 gpm or the mixed liquor suspended solids (MLSS) “the bugs” are flushed out of the system causing permit violations. From the Basis of Design report, it was anticipated by the design engineers that the Purestream plant could handle flows up to 70 gpm for several hours without any effect on treatment. Similarly, the downstream sand filter cannot operate successfully at flows between 35 and 70 gpm.

The failure in the Purestream plant is the design of the clarifier and the return sludge pumping system. Per their literature, their design provides a shallow hopper clarifier that requires a 4 to 1 ration of return sludge flow to forward flow to provide settlement and avoid the MLSS from being washed out. The system provided has an air lift pump that is capable of a 1 to 1 ratio. We added submersible pumps to provide the specified 4 to 1 flow ratio and the system still did not work as promoted. This deficiency in the internal hydraulics of the Purestream plant makes its very difficult to operate the plant and requires additional vigilance by the operator.

This disconnect between the installed influent pumping capacity and the treatment unit’s hydraulic capacity was the reason the previous operator could not grow a MLSS population that is needed for treatment.

Additionally, the MLSS requires sufficient air to grow to a population that is needed for full treatment. By operating the WWTP, we determined that the air provided by the Pureshtream system is only half of what is needed to operate the plant. We were able to overcome this deficiency by using both blowers at maximum speed. This means the plant does not have the standby spare blower (air) capacity that is needed to meet code. To address this issue, the spare sand filter blower will be piped to the aeration tank blower’s header piping.

223 Main Street Goshen, New York 10924 845.615-9232

55 South Main Street Oneonta, New York 13820 607.432.8073

548 Broadway Monticello, New York 12701 854.791.7777

16 East Market Street Red Hook, NY 12571 518.452.1290

Delaware Engineering, D.P.C.

To return the UV units to operation, we had to abandon the Evoqua control board and install a generic control system. The UV lights and the UV units are capable of disinfecting the effluent but the units need to be kept clean for the fecal coliform limit to be met. Cleaning a minim of once per week is needed.

The effluent water quality has improved from April’s but the WWTP has not improved enough to meet all the effluent limits.

The following data is extracted from the DMR reports attached to this letter.

|Parameter|Units|Result Old Plant|Result New Plant|Limit| |---|---|---|---|---| |Average Day Flow|mgd|.020|.033|0.025/0.05 (1) max| |Total Suspended Solids (TSS)|mg/L|10.7|43.4|10 max| |CarbonaceousBOD5 (5-Day)|mg/L|4.6|7.5|5max| |Total AmmoniaNitrogen(asN)|mg/L|1.4|15.24|1.8 (2)max| |UOD|Mg/l|22.8|84.6|34 max| |Fecal Coliform|MPN/100|<1|2500|200 (3) max| |Dissolved Oxygen|mg/L|9.04|7.1|7min|

Notes:

1. Outfall 1A (New Plant) has a monthly average flow limit of 50,000 gpd and outfall 1B (Old Plant) has a monthly average flow limit of 25,000 gpd.

2. The limit for Total Ammonia Nitrogen (as N) is 0.98 mg/L from June 1[st] to October 31[st] and 1.81 mg/L from November 1[st] and May 31[st] .

3. The limit for Fecal Coliform is regulated as 200 No./ 100m over a 30-Day geometric mean and 400 No./ 100m over a 7-Day geometric mean.

Please call me at 518-452-1290 if you have any questions.

Sincerely,

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© bara ----- End of picture text -----

Roberto Flores, P.E.

2

Page 1 of 4 WASTEWATER FACILITY OPERATION REPORT FOR THE MONTH OF May 2025 SPDES PERMIT NO. FACILITY NAME FACILITY OWNER FACILITY LOCATION Village of Red Hook WWTP - New Plant, Outfall 1A Village of Red Hook US Route 9 (near O'Callaghan Ln)/Village of Red Hook Flow Totalizer VOLUME OF SEWAGE TREATED [Permit: Monthly Ave. SETTLEABLE SOLIDS [Permit: 0.1 mL/L] D.O. [Permit: 7.0 mg/L] MIXED LIQUOR WASTE ACT. Daily Precip. Dly Average Influent In-Plant Effluent Influent In-Plant Effluent Effluent Effluent S.S. (MLSS) Sludge(WAS) DAY DATE in/day Gal GPD (oF)(2) (oF)(2) (oF)(2) S.U. S.U. S.U. mL/L mg/L mg/L 5 Min 30 min 60 min min/day Thu 1 0.000 32278119 38946 47 63 52 6.40 7.99 8.31 <0.1 9.00 1500 930 780 0 Fri 2 0.030 32317065 40346 48 62 53 6.82 7.41 8.47 <0.1 9.42 1540 830 790 0 Sat 3 1.237 32357411 44686 48 61 52 6.89 7.42 8.32 <0.1 9.07 960 830 0 Sun 4 0.709 32402097 35802 47 60 52 6.92 7.78 8.21 <0.1 8.70 960 850 0 Mon 5 0.714 32437899 28345 47 51 6.52 8.01 <0.1 9.04 1600 970 900 0 Tue 6 0.514 32436244 33912 49 54 6.57 8.03 <0.1 9.10 1780 980 920 0 Wed 7 0.000 32500156 37710 50 53 6.42 8.27 <0.1 9.27 1830 970 860 17 [E] Thu 8 0.223 32537866 40510 50 53 6.72 8.49 <0.1 9.02 1670 950 840 0 Fri 9 2.522 32578376 39376 47 52 7.23 8.41 <0.1 7.10 940 800 0 Sat 10 0.028 32617752 42435 48 51 7.42 8.37 <0.1 7.92 920 810 0 Sun 11 0.000 32660187 34841 49 51 7.02 8.07 <0.1 7.81 910 840 0 Mon 12 0.000 32695028 31106 47 52 7.09 7.81 <0.1 7.94 900 810 0 Tue 13 0.000 32726134 36776 47 53 7.05 8.27 <0.1 8.72 1720 900 770 5 [W] Wed 14 0.119 327562910 38480 49 54 7.21 8.10 <0.1 8.41 1740 890 740 0 Thu 15 0.000 32801390 15286 50 52 7.23 8.27 <0.1 7.21 1670 900 790 0 Fri 16 0.000 32816676 22832 51 53 7.02 8.09 <0.1 7.92 1920 940 810 0 Sat 17 0.011 32839508 28952 50 51 7.05 8.00 <0.1 8.47 920 800 Sun 18 0.000 32868460 28288 50 52 7.10 7.82 <0.1 8.03 930 780 Mon 19 0.000 32896748 40722 53 54 7.24 8.04 <0.1 8.02 900 760 Tue 20 0.000 32937470 21871 52 55 7.31 8.21 <0.1 8.41 900 730 Wed 21 0.100 32959341 23640 51 54 7.34 8.42 <0.1 8.47 910 750 Thu 22 0.228 32982987 30718 52 53 7.24 7.92 <0.1 8.07 1000 970 Fri 23 0.059 33013697 44491 51 53 7.18 8.42 <0.1 8.24 980 900 Sat 24 0.135 33058188 27677 52 54 7.23 8.37 <0.1 8.37 980 910 Sun 25 0.004 33085863 30417 53 56 7.19 8.28 <0.1 8.58 990 920 Mon 26 0.000 33110282 13320 52 54 7.18 8.17 <0.1 8.42 990 920 Tue 27 0.000 33129602 35084 52 55 7.34 8.02 <0.1 8.00 2880 990 920 Wed 28 0.000 33164686 25211 51 55 7.23 8.13 <0.1 8.71 2830 990 930 Thu 29 0.028 33189897 33675 53 57 7.42 8.19 <0.1 8.86 2600 970 880 Fri 30 0.000 33223572 36676 53 56 7.41 8.00 <0.1 8.41 970 880 Sat 31 2.348 33260248 31278 52 57 7.37 8.27 <0.1 9.03 970 850 New York State Department of Environmental Conservation Division of Water Activated Sludge Process Control 92-15-7 (11/95)-- 27c SETTLEABLE SLUDGE Volume (SSV)(mL/L) NY-0271420 TEMPERATURE [Permit: Max Eff. = 70 oF] pH [Permit: 6.5-8.5 S.U.]

MIXED LIQUOR WASTE ACT. S.S. (MLSS) Sludge(WAS) mg/L 5 Min 30 min 60 min min/day 1500 930 780 0 1540 830 790 0 960 830 0 960 850 0 1600 970 900 0 1780 980 920 0 1830 970 860 17 [E] 1670 950 840 0 940 800 0 920 810 0 910 840 0 900 810 0 1720 900 770 5 [W] 1740 890 740 0 1670 900 790 0 1920 940 810 0 920 800 930 780 900 760 900 730 910 750 1000 970 980 900 980 910 990 920 990 920 2880 990 920 2830 990 930 2600 970 880 970 880 970 850 Activated Sludge Process Control SETTLEABLE SLUDGE Volume (SSV)(mL/L)

| - | - | Flow Totalizer | VOLUME OF | TEMPERATURE | pH | SETTLEABLE | D.O. | - | | - | - | - | SEWAGE | [Permit: Max Eff. = 70 oF] | [Permit: 6.5-8.5 S.U.] | SOLIDS | [Permit: 7.0 | - | | - | - | - | TREATED | - | - | [Permit: 0.1 | mg/L] | - | | - | - | - | [Permit: | - | - | mL/L] | Effluent | - | | - | - | - | Monthly Ave. | - | - | Effluent | mg/L | - | | - | - | - | - | - | - | mL/L | 9.00 | - | | - | - | - | - | - | - | <0.1 | 9.42 | - | | - | - | - | - | - | - | <0.1 | 9.07 | - | | - | - | - | - | - | - | <0.1 | 8.70 | - | | - | - | - | - | - | - | <0.1 | 9.04 | - | | - | - | - | - | - | - | <0.1 | 9.10 | - | | - | - | - | - | - | - | <0.1 | 9.27 | - | | - | - | - | - | - | - | <0.1 | 9.02 | - | | - | - | - | - | - | - | <0.1 | 7.10 | - | | - | - | - | - | - | - | <0.1 | 7.92 | - | | - | - | - | - | - | - | <0.1 | 7.81 | - | | - | - | - | - | - | - | <0.1 | 7.94 | - | | - | - | - | - | - | - | <0.1 | 8.72 | - | | - | - | - | - | - | - | <0.1 | 8.41 | - | | - | - | - | - | - | - | <0.1 | 7.21 | - | | - | - | - | - | - | - | <0.1 | 7.92 | - | | - | - | - | - | - | - | <0.1 | 8.47 | - | | - | - | - | - | - | - | <0.1 | 8.03 | - | | - | - | - | - | - | - | <0.1 | 8.02 | - | | - | - | - | - | - | - | <0.1 | 8.41 | - | | - | - | - | - | - | - | <0.1 | 8.47 | - | | - | - | - | - | - | - | <0.1 | 8.07 | - | | - | - | - | - | - | - | <0.1 | 8.24 | - | | - | - | - | - | - | - | <0.1 | 8.37 | - | | - | - | - | - | - | - | <0.1 | 8.58 | - | | - | - | - | - | - | - | <0.1 | 8.42 | - | | - | - | - | - | - | - | <0.1 | 8.00 | - | | - | - | - | - | - | - | <0.1 | 8.71 | - | | - | - | - | - | - | - | <0.1 | 8.86 | - | | - | - | - | - | - | - | <0.1 | 8.41 | - | | - | - | - | - | - | - | <0.1 | 9.03 | - | | - | - | - | - | - | - | <0.1 | - | - | | - | Daily Precip. | Gal | - | Influent | Influent | - | - | - | | - | in/day | 32278119 | Dly Average | In-Plant | In-Plant | - | - | - | | - | 0.000 | 32317065 | GPD | Effluent | Effluent | - | - | - | | - | 0.030 | 32357411 | 38946 | (oF)(2) | S.U. | - | - | - | | - | 1.237 | 32402097 | 40346 | (oF)(2) | S.U. | - | - | - | | - | 0.709 | 32437899 | 44686 | (oF)(2) | S.U. | - | - | - | | - | 0.714 | 32436244 | 35802 | 47 | 6.40 | - | - | - | | - | 0.514 | 32500156 | 28345 | 63 | 7.99 | - | - | - | | - | 0.000 | 32537866 | 33912 | 52 | 8.31 | - | - | - | | - | 0.223 | 32578376 | 37710 | 48 | 6.82 | - | - | - | | - | 2.522 | 32617752 | 40510 | 62 | 7.41 | - | - | - | | - | 0.028 | 32660187 | 39376 | 53 | 8.47 | - | - | - | | - | 0.000 | 32695028 | 42435 | 48 | 6.89 | - | - | - | | - | 0.000 | 32726134 | 34841 | 61 | 7.42 | - | - | - | | - | 0.000 | 327562910 | 31106 | 52 | 8.32 | - | - | - | | - | 0.119 | 32801390 | 36776 | 47 | 6.92 | - | - | - | | - | 0.000 | 32816676 | 38480 | 60 | 7.78 | - | - | - | | - | 0.000 | 32839508 | 15286 | 52 | 8.21 | - | - | - | | - | 0.011 | 32868460 | 22832 | 47 | 6.52 | - | - | - | | - | 0.000 | 32896748 | 28952 | 51 | 8.01 | - | - | - | | - | 0.000 | 32937470 | 28288 | 49 | 6.57 | - | - | - | | - | 0.000 | 32959341 | 40722 | 54 | 8.03 | - | - | - | | - | 0.100 | 32982987 | 21871 | 50 | 6.42 | - | - | - | | - | 0.228 | 33013697 | 23640 | 53 | 8.27 | - | - | - | | - | 0.059 | 33058188 | 30718 | 50 | 6.72 | - | - | - | | - | 0.135 | 33085863 | 44491 | 53 | 8.49 | - | - | - | | - | 0.004 | 33110282 | 27677 | 47 | 7.23 | - | - | - | | - | 0.000 | 33129602 | 30417 | 52 | 8.41 | - | - | - | | - | 0.000 | 33164686 | 13320 | 48 | 7.42 | - | - | - | | - | 0.000 | 33189897 | 35084 | 51 | 8.37 | - | - | - | | - | 0.028 | 33223572 | 25211 | 49 | 7.02 | - | - | - | | - | 0.000 | 33260248 | 33675 | 51 | 8.07 | - | - | - | | - | 2.348 | - | 36676 | 47 | 7.09 | - | - | - | | - | - | - | 31278 | 52 | 7.81 | - | - | - | | - | - | - | - | 47 | 7.05 | - | - | - | | - | - | - | - | 53 | 8.27 | - | - | - | | - | - | - | - | 49 | 7.21 | - | - | - | | - | - | - | - | 54 | 8.10 | - | - | - | | - | - | - | - | 50 | 7.23 | - | - | - | | - | - | - | - | 52 | 8.27 | - | - | - | | - | - | - | - | 51 | 7.02 | - | - | - | | - | - | - | - | 53 | 8.09 | - | - | - | | - | - | - | - | 50 | 7.05 | - | - | - | | - | - | - | - | 51 | 8.00 | - | - | - | | - | - | - | - | 50 | 7.10 | - | - | - | | - | - | - | - | 52 | 7.82 | - | - | - | | - | - | - | - | 53 | 7.24 | - | - | - | | - | - | - | - | 54 | 8.04 | - | - | - | | - | - | - | - | 52 | 7.31 | - | - | - | | - | - | - | - | 55 | 8.21 | - | - | - | | - | - | - | - | 51 | 7.34 | - | - | - | | - | - | - | - | 54 | 8.42 | - | - | - | | - | - | - | - | 52 | 7.24 | - | - | - | | - | - | - | - | 53 | 7.92 | - | - | - | | - | - | - | - | 51 | 7.18 | - | - | - | | - | - | - | - | 53 | 8.42 | - | - | - | | - | - | - | - | 52 | 7.23 | - | - | - | | - | - | - | - | 54 | 8.37 | - | - | - | | - | - | - | - | 53 | 7.19 | - | - | - | | - | - | - | - | 56 | 8.28 | - | - | - | | - | - | - | - | 52 | 7.18 | - | - | - | | - | - | - | - | 54 | 8.17 | - | - | - | | - | - | - | - | 52 | 7.34 | - | - | - | | - | - | - | - | 55 | 8.02 | - | - | - | | - | - | - | - | 51 | 7.23 | - | - | - | | - | - | - | - | 55 | 8.13 | - | - | - | | - | - | - | - | 53 | 7.42 | - | - | - | | - | - | - | - | 57 | 8.19 | - | - | - | | - | - | - | - | 53 | 7.41 | - | - | - | | - | - | - | - | 56 | 8.00 | - | - | - | | - | - | - | - | 52 | 7.37 | - | - | - | | - | - | - | - | 57 | 8.27 | - | - | - | | - | Total | - | Monthly | Influent | Minimum | Monthly | Minimum | um, minimum, percent removal, etc | | - | Precip. | - | Average | Effluent | Maximum | Maximum | 7.10 | - | | - | 9.009 | - | 32691 | 50 | 7.81 | <0.1 | - | - | | - | - | - | 0.03 | 53 | 8.49 | - | - | - | | - | - | - | - | Daily Max | Monthly Effluent | - | - | - | | - | - | - | - | 57 | - | - | - | - | | - | - | - | - | Monthly Average | - | - | - | - | |(1) Refer to Janua (2) If Temperature NOTE: Refer to cu|ry 1994 edition of_D_ is measured more rrent SPDESpermi|_MR Manual for completing the Discharge Monitoring Report for the national Pollutant Discharge Elimination System (NPDES)_for procedures to calculate loadings, arithmetic mean, geometric Mean, maxim than once a day, report the average for the da t for specific monitoringrequirements. Sample type for temperature,PH and settleable solids isgrab|||||||

FACI DAY Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat

Page 2 of 4 LITY MAILING ADDRESS (Street, City, Zip Code) TELEPHONE NUMBER CHIEF OPERATOR'S NAME CERTIFICATION GRADE Robert Flores 4A U.O.D. (11/1- 5/31) [Permit: 34.0 mg/L] TKN, Total TOTAL AMMONIA as N [Permit: 6/1- 10/31, 0.98 mg/L 11/1-5/31, 1 81 mg/L FECAL COLIFORM [Permit: 200 No./100 mL] Influent Effluent Effluent Influent Effluent Effluent Effluent DATE mg/L mg/L mg/L mg/L mg/L mg/L MF or No./100mL 1 2 3 4 5 6 7 220 7.9 14.4 97.8 0.575 0.177 <1.00 Ammonia (Influent) = 57.4 mg/L, TKN (Influent) = 56.0 mg/L 8 9 10 11 12 13 14 110 <4.0 179.0 109 39.1 37.8 <1.00 Ammonia (Influent) = 33.8 mg/L, TKN (Influent) = 36.6 mg/L 15 16 17 18 19 20 21 170 4.2 96.3 79.0 20.0 19.40 3.10 Ammonia (Influent) = 57.6 mg/L, TKN (Influent) = 59.0 mg/L 22 23 24 25 26 27 28 280 14.0 48.7 47.7 6.15 3.57 9999 Ammonia (Influent) = 61.0 mg/L, TKN (Influent) = 62.5 mg/L 29 30 31 Average inf.(mg/l) eff.(mg/l) Maximum inf.(mg/l) Average 15.24 195 7.53 179.0 83.4 16.5 Max 13.27 %Rem.-> 96 %Rem.-> 37.80 Max 61.4 lbs/day 9999 26.2 lbs/day 11.8 lbs/day 4.15 SUSPENDED SOLIDS [Permit: 10.0 mL/L] Effluent 30 day flow-weighted avg(1) 30 day geometric mean(1) eff.(mg/l) 7467 South Broadway; Red Hook, NY 12571 CBOD(5-Day)(11/1-5/31) BOD (5-Day)(6/1-10/31) [Permit: 5.0 mg/L] 30 Day Average Quantity Loading(1) mg/L 26.1 43.4 48 30 day flow-weighted avg(1) 49.3 61.4 845-758-1081 36.7 Max (effluent)

|(1) Refer to January 1994 edition of_DMR Manual for completing the Discharge Monitoring Report for the national Pollutant Discharge Elimination System (NPDES)_for procedures to calculate loadings, arithmetic mean, geometric Mean, maximum, minimum, percent removal, etc NOTE: Refer to current SPDESpermit for specific monitoringrequirements. Sample type for temperature,PH and settleable solids isgrab|||

(1) Refer to January 1994 edition of DMR Manual for completing the Discharge Monitoring Report for the national Pollutant Discharge Elimination System (NPDES) for procedures to calculate loadings, arithmetic mean, geometric Mean, maximum, minimum, percent removal, etc

NOTE: Refer to current SPDES permit for specific monitoring requirements. Sample type for temperature, PH and settleable solids is grab

Day Date Thu 1 Fri 2 Sat 3 Sun 4 Mon 5 Tue 6 Wed 7 Thu 8 Fri 9 Sat 10 Sun 11 Mon 12 Tue 13 Wed 14 Thu 15 Fri 16 Sat 17 Sun 18 Mon 19 Tue 20 Wed 21 Thu 22 Fri 23 Sat 24 Sun 25 Mon 26 Tue 27 Wed 28 Thu 29 Fri 30 Sat 31 (1) Refer to Janua minimum, percent

Page 3 of 4 CHLORINE RESIDUAL [Permit: 0.03 mg/L] Effluent REMARKS mg/L #1 #2 Enter any other comments, observations, operating problems, equipment failures, etc. <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 74 142 32.7 26.5 203 42 100 100.6 Minimum Maximum <0.3 27 203 _MR Manual for completing the Discharge Monitoring Report for the national Pollutant Discharge Elimination System (NPDES)_for procedures to calculate loadings, arithmetic mean, geometric Mean, maximum, Waste tank pumped out. Monthly Maximum Monthly UVs need calibration. Both UV units on side 1A on - need to calibrate % intensity UVs need calibration. DEC Site Visit UV lights operational ULTRAVIOLET (%) %

EQ LEVEL

CHLORINE RESIDUAL [Permit: 0.03 mg/L] Effluent mg/L <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 <0.3 Monthly Maximum

#1 #2 74 142 32.7 26.5 203 42 100 100.6 Minimum Maximum 27 203 Monthly ULTRAVIOLET (%) %

||ft||| ||ry 1994 edition of_D_ removal, etc|||

Name of Receiving Stream Odor Log Day Date Thu 1 Fri 2 Sat 3 Sun 4 Mon 5 Tue 6 Wed 7 Thu 8 Fri 9 Sat 10 Sun 11 Mon 12 Tue 13 Wed 14 Thu 15 Fri 16 Sat 17 Sun 18 Mon 19 Tue 20 Wed 21 Thu 22 Fri 23 Sat 24 Sun 25 Mon 26 Tue 27 Wed 28 Thu 29 Fri 30 Sat 31 odor complaints rec'd (emailed. 8:54PM). Checked plant 5/21, 6AM. No issues. Investigated area of call. Faint smell. Private septic? 2 odor complaints rec'd (emailed. 8:30PM). Odor due to high flow event. odor complaint rec'd (emailed. 6:25AM). JS investigated. Nothing found. 2nd odor complant rec'd (text to JS @8PM). odor complaint rec'd (email) 8:15pm, strong sewer smell. JS investigated. High flows arriving at plant. Reason? Subtrib of Saw Kill

Name and amount of chemicals used in treatment process Sludge removal from plant: during month: a. amount a. Sodium Hypochloride lbs. b. b. Sodium Sulfate lbs. c. c. lbs. d. Disposal Hauler: Superior d. lbs. e. lbs. f. lbs. Amount of electrical power consumed: Other Solid Wastes: a. Commercial kilowatt hours a. Screenings b. Stand-by kilowatt hours b. c. Amount of fuel consumed: d. a. Natural Gas cubic feet e. b. Oil gallons f. c. Gasoline gallons g. Disposal Site: UCRRA d. Coal tons e. Digester Gas cubic feet f. Propane gallons Labor expended: POSITION NAME NUMBER FULL TIME NUMBER PART-TIME

Page 4 of 4 gals Sanitation cubic feet TOTAL HOURS st of my knowledge and belief. False statements nal Law. 6/20/2025 Date

||Wastewater Operator Laborer I hereby affirm under penalty of perjury that information provided on this form is true to the be made herein are punishable as a Class A misdemeanor pursuant to Section 210.45 of the Pe Robert Flores Signature of Chief Operator or Designated Facility Representative||

Page 1 of 4 May 2025 SPDES PERMIT NO. FACILITY NAME FACILITY OWNER FACILITY LOCATION Village of Red Hook WWTP - Old (RHC) Plant, Outfall 1B Village of Red Hook US Route 9 (near O'Callaghan Ln)/Village of Red Hook Flow Totalizer VOLUME OF SEWAGE TREATED [Permit: Monthly Ave. <0.025 MGD] SETTLEABLE SOLIDS [Permit: 0.1 mL/L] D.O. [Permit: 7.0 mg/L] EQ LEVEL MIXED LIQUOR WASTE ACT. Daily Precip. Dly Average Influent Effluent Influent Effluent Effluent Effluent S.S. (MLSS) Sludge(WAS) DAY DATE in/day Gal GPD (oF)(2) (oF)(2) S.U. S.U. mL/L mg/L ft mg/L 5 Min 30 min 60 min min/day Thu 1 0.000 No Flow 0 Fri 2 0.030 Off Line 0 Sat 3 1.237 0 Sun 4 0.709 0 Mon 5 0.714 0 Tue 6 0.514 0 Wed 7 0.000 0 Thu 8 0.223 0 Fri 9 2.522 0 Sat 10 0.028 0 Sun 11 0.000 0 Mon 12 0.000 0 Tue 13 0.000 0 Wed 14 0.119 0 Thu 15 0.000 0 Fri 16 0.000 0 Sat 17 0.011 0 Sun 18 0.000 0 Mon 19 0.000 0 Tue 20 0.000 0 Wed 21 0.100 0 Thu 22 0.228 0 Fri 23 0.059 0 Sat 24 0.135 0 Sun 25 0.004 0 Mon 26 0.000 0 Tue 27 0.000 0 56 58 8.1 8.5 <0.1 9.13 Full 170 130 <100 0 Wed 28 0.000 55521586 8546 54 59 8.2 8.4 <0.1 9.04 Full 200 150 <100 0 Thu 29 0.028 55530132 23856 54 58 8.1 8.4 <0.1 9.09 Full 690 260 120 0 Fri 30 0.000 55553988 23384 52 57 8.3 8.3 <0.1 9.14 Full 740 290 140 0 Sat 31 2.348 55577572 23654 52 56 8.2 8.0 <0.1 9.27 300 160 New York State Department of Environmental Conservation Division of Water Activated Sludge Process Control NY-0271420 TEMPERATURE [Permit: Max Eff. = 70oF] pH [Permit: 6.5-8.5 S.U.] 92-15-7 (11/95)-- 27c WASTEWATER FACILITY OPERATION REPORT FOR THE MONTH OF SETTLEABLE SLUDGE Volume (SSV)(mL/L)

MIXED LIQUOR WASTE ACT. S.S. (MLSS) Sludge(WAS) mg/L 5 Min 30 min 60 min min/day 170 130 <100 0 200 150 <100 0 690 260 120 0 740 290 140 0 300 160 Activated Sludge Process Control SETTLEABLE SLUDGE Volume (SSV)(mL/L)

| - | - | Flow Totalizer | VOLUME OF | TEMPERATURE | pH | SETTLEABLE | D.O. | EQ LEVEL | - | | - | - | - | SEWAGE | [Permit: Max Eff. = 70oF] | [Permit: 6.5-8.5 S.U.] | SOLIDS | [Permit: 7.0 mg/L] | ft | - | | - | - | - | TREATED | - | - | [Permit: 0.1 | Effluent | Full | - | | - | - | - | [Permit: Monthly | - | - | mL/L] | mg/L | Full | - | | - | - | - | Ave. <0.025 | - | - | Effluent | 9.13 | Full | - | | - | - | - | MGD | - | - | mL/L | 9.04 | Full | - | | - | - | - | - | - | - | <0.1 | 9.09 | - | - | | - | - | - | - | - | - | <0.1 | 9.14 | - | - | | - | - | - | - | - | - | <0.1 | 9.27 | - | - | | - | - | - | - | - | - | <0.1 | - | - | - | | - | - | - | - | - | - | <0.1 | - | - | - | | - | Daily Precip. | Gal | ] | Influent | Influent | - | - | - | - | | - | in/day | No Flow | Dly Average | Effluent | Effluent | - | - | - | - | | - | 0.000 | Off Line | GPD | (oF)(2) | S.U. | - | - | - | - | | - | 0.030 | 55521586 | 0 | (oF)(2) | S.U. | - | - | - | - | | - | 1.237 | 55530132 | 0 | 56 | 8.1 | - | - | - | - | | - | 0.709 | 55553988 | 0 | 58 | 8.5 | - | - | - | - | | - | 0.714 | 55577572 | 0 | 54 | 8.2 | - | - | - | - | | - | 0.514 | - | 0 | 59 | 8.4 | - | - | - | - | | - | 0.000 | - | 0 | 54 | 8.1 | - | - | - | - | | - | 0.223 | - | 0 | 58 | 8.4 | - | - | - | - | | - | 2.522 | - | 0 | 52 | 8.3 | - | - | - | - | | - | 0.028 | - | 0 | 57 | 8.3 | - | - | - | - | | - | 0.000 | - | 0 | 52 | 8.2 | - | - | - | - | | - | 0.000 | - | 0 | 56 | 8.0 | - | - | - | - | | - | 0.000 | - | 0 | - | - | - | - | - | - | | - | 0.119 | - | 0 | - | - | - | - | - | - | | - | 0.000 | - | 0 | - | - | - | - | - | - | | - | 0.000 | - | 0 | - | - | - | - | - | - | | - | 0.011 | - | 0 | - | - | - | - | - | - | | - | 0.000 | - | 0 | - | - | - | - | - | - | | - | 0.000 | - | 0 | - | - | - | - | - | - | | - | 0.000 | - | 0 | - | - | - | - | - | - | | - | 0.100 | - | 0 | - | - | - | - | - | - | | - | 0.228 | - | 0 | - | - | - | - | - | - | | - | 0.059 | - | 0 | - | - | - | - | - | - | | - | 0.135 | - | 0 | - | - | - | - | - | - | | - | 0.004 | - | 0 | - | - | - | - | - | - | | - | 0.000 | - | 0 | - | - | - | - | - | - | | - | 0.000 | - | 0 | - | - | - | - | - | - | | - | 0.000 | - | 0 | - | - | - | - | - | - | | - | 0.028 | - | 8546 | - | - | - | - | - | - | | - | 0.000 | - | 23856 | - | - | - | - | - | - | | - | 2.348 | - | 23384 | - | - | - | - | - | - | | - | - | - | 23654 | - | - | - | - | - | - | | - | Total | - | Monthly | Influent | Minimum | Monthly | Minimum | - | mum, minimum, percent removal, etc | | - | Precip. | - | Average | Effluent | Maximum | Maximum | 9.04 | - | - | | - | 9.009 | - | 19860 | 54 | 8.0 | <0.1 | - | - | - | | - | - | - | 0.020 | 58 | 8.5 | - | - | - | - | | - | - | - | - | Daily Max | Monthly Effluent | - | - | - | - | | - | - | - | - | 59 | - | - | - | - | - | | - | - | - | - | Monthly Average | - | - | - | - | - | |(1) Refer to Janua (2) If Temperature NOTE: Refer to cu|ry 1994 edition of_D_ is measured more rrent SPDESpermi|||||||||

FACI DAY Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat

Page 2 of 4 LITY MAILING ADDRESS (Street, City, Zip Code) TELEPHONE NUMBER CHIEF OPERATOR'S NAME CERTIFICATION GRADE Robert Flores 4A U.O.D. (11/1-5/31) [Permit: 34.0 mg/L] TKN, Total TOTAL AMMONIA as N [Permit: 6/1-10/31, 0.98 mg/L 11/1-5/31, 1.81 mg/L FECAL COLIFORM [Permit: 200 No./100 mL] Influent Effluent Effluent Influent Effluent Effluent Effluent DATE mg/L mg/L mg/L mg/L mg/L mg/L MF or No./100mL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 4.6 22.8 3.54 1.40 <1.00 29 30 31 inf.(mg/l) eff.(mg/l) inf.(mg/l) Average #DIV/0! 4.6 #DIV/0! 1.40 1 %Rem.-> #DIV/0! %Rem.-> lbs/day 0.76 lbs/day 2 lbs/day 0.23 SUSPENDED SOLIDS [Permit: 10.0 mL/L] Effluent 30 day flow-weighted avg(1) 30 day geometric mean(1) eff.(mg/l) 845-758-1081 CBOD(5-Day)(11/1-5/31) BOD (5-Day)(6/1-10/31) [Permit: 5.0 mg/L] 7467 South Broadway; Red Hook, NY 12571 30 Day Average Quantity Loading(1) mg/L 10.7 #DIV/0! 30 day flow-weighted avg(1) 10.7

|(1) Refer to January 1994 edition of_DMR Manual for completing the Discharge Monitoring Report for the national Pollutant Discharge Elimination System (NPDES)_for procedures to calculate loadings, arithmetic mean, geometric Mean, maximum, minimum, percent removal, etc NOTE: Refer to current SPDESpermit for specific monitoringrequirements. Sample type for temperature,PH and settleable solids isgrab|||

(1) Refer to January 1994 edition of DMR Manual for completing the Discharge Monitoring Report for the national Pollutant Discharge Elimination System (NPDES) for procedures to calculate loadings, arithmetic mean, geometric Mean, maximum, minimum, percent removal, etc

NOTE: Refer to current SPDES permit for specific monitoring requirements. Sample type for temperature, PH and settleable solids is grab

Day Date Thu 1 Fri 2 Sat 3 Sun 4 Mon 5 Tue 6 Wed 7 Thu 8 Fri 9 Sat 10 Sun 11 Mon 12 Tue 13 Wed 14 Thu 15 Fri 16 Sat 17 Sun 18 Mon 19 Tue 20 Wed 21 Thu 22 Fri 23 Sat 24 Sun 25 Mon 26 Tue 27 Wed 28 Thu 29 Fri 30 Sat 31 (1) Refer to Janua minimum, percent

Page 3 of 4 CHLORINE RESIDUAL [Permit: 0.03 mg/L] Effluent REMARKS mg/L #1 #2 Enter any other comments, observations, operating problems, equipment failures, etc. 203 43 78 43 Minimum Maximum 0.00 43 203 ry 1994 edition of_DMR Manual for completing the Discharge Monitoring Report for the national Pollutant Discharge Elimination System (NPDES)_for procedures to calculate loadings, arithmetic mean, geometric Mean, maximum, removal, etc UVs needs to be calibrated Monthly Maximum Monthly Working on side 1B, pumped out 28,000 gal (Superior Sanitation). DEC Site Visit ULTRAVIOLET (%) %

Name of Receiving Stream Odor Log Day Date Thu 1 Fri 2 Sat 3 Sun 4 Mon 5 Tue 6 Wed 7 Thu 8 Fri 9 Sat 10 Sun 11 Mon 12 Tue 13 Wed 14 Thu 15 Fri 16 Sat 17 Sun 18 Mon 19 Tue 20 Wed 21 Thu 22 Fri 23 Sat 24 Sun 25 Mon 26 Tue 27 Wed 28 Thu 29 Fri 30 Sat 31 See DMR for Outfall 1A (New WWTP) Subtrib of Saw Kill

Page 4 of 4 Name and amount of chemicals used in treatment process Sludge removal from plant: during month: a. amount 28000 gals a. Sodium Hypochloride lbs. b. b. Sodium Sulfate lbs. c. c. lbs. d. Disposal Hauler: Superior Sanitation d. lbs. e. lbs. f. lbs. Amount of electrical power consumed: Other Solid Wastes: a. Commercial kilowatt hours a. Screenings cubic feet b. Stand-by kilowatt hours b. c. Amount of fuel consumed: d. a. Natural Gas cubic feet e. b. Oil gallons f. c. Gasoline gallons g. Disposal Site: UCRRA d. Coal tons e. Digester Gas cubic feet f. Propane gallons Labor expended: POSITION NAME NUMBER FULL TIME NUMBER PART-TIME TOTAL HOURS Wastewater Operator Laborer I hereby affirm under penalty of perjury that information provided on this form is true to the best of my knowledge and belief. False statements made herein are punishable as a Class A misdemeanor pursuant to Section 210.45 of the Penal Law. Robert Flores 6/20/2025 Signature of Chief Operator or Designated Facility Representative Date

Appendix B

SECTION 1

New York State Department of Environmental Conservation Division of Water

Te Report of Noncompliance Event

To: DEC Water Contact Vijay Gandhi DEC Region: 3 Report Type: 5 Day Permit Violation Order Violation Anticipated Noncompliance Bypass/Overflow Other

SECTION 2

SPDES #: NY- 0271420 Facility: Village of Red Hook WWTP Date of noncompliance: 05/30/2025 Location (Outfall, Treatment Unit, or Pump Station): 1A and 1B Outfall 1B was placed in service and TSS was exceeded due to start up issues. Description of noncompliance(s) and cause(s): on Outfall 1A, the Fecal was exceed once due to the UV unit not being cleaned as scheduled.

Outfall 1A is unable to keep MLSS in the aeration tank when flows approach or exceed 35 gpm due to shallow clarifiers.

the oversized influent pumps and the shallow clarifiers lead to TSS and ammonia discharge exceedances.

Has event ceased? No If so, when? Was event due to plant upset? Yes SPDES limits violated? Yes 03/31/2025 am am Start date, time of event: , End date, time of event: Date, time oral notification made to DEC? , am DEC Official contacted: Vijay Gandhi

Immediate corrective actions:

started using temporary influent pump to lower flows. added a temporary surge tank. installed temporary pump to send

mudwell return flow to EQ instead of the anoxic zone.

Preventive (long term) corrective actions: need to install perminant versions of the temporary pumps and piping that are being used to control the peak flows.

SECTION 3

Complete this section if event was a bypass: No Bypass amount: Was prior DEC authorization received for this event? DEC Official contacted: Date of DEC approval: Describe event in "Description of noncompliance and cause" area in Section 2. Detail the start and end dates and times in Section 2 also. SECTION 4 Facility Representative: Roberto Flores Title: Chief Operator Date: 518 469 - 8189 Phone #: ( ) Fax #: ( )

June 20, 2025

I Certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

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Signature of Principal Executive Officer or Authorized Agent

INSTRUCTIONS

The Division of Water developed this standardized form to simplify the reporting of noncompliance events. The SPDES Permit General Conditions, require that certain discharges of untreated or partially treated sewage must be reported orally within either 2 hours1 or 24 hours and also in writing within five (5) days as required by the appropriate regulation. All other permit noncompliance shall be reported as attachments to the Discharge Monitoring Report (DMR). This form should be used for these events as well as to report noncompliance relating to consent orders, scheduled events and bypass events.

All necessary information can readily be reported to DEC on this form. Additional information required to describe the event can be attached. Please make additional copies of this form and use as needed . Instructions are provided below. For questions on form use please contact the appropriate office listed below for the county where your permitted facility is located. Thank you for your cooperation.

Instructions to complete and submit Noncompliance Report

1. Provide facility information and all applicable event details in Sections 1 through 3. Dates should be completed in month/day/year format.

2. Provide your name, title, business phone number, and date report was completed in Section 4. Use additional sheets as needed to provide full detail of the event in Section 2.

3. For 5-day written reports, mail or fax the completed form to the appropriate DEC Regional Office listed below. Attach all other noncompliance reports to the DMR submittal (be sure to attach to each set of DMR copies) or mail separately if related to consent order/scheduled event noncompliance. After hours and weekend reporting of unusual discharge events of other noncompliance must be reported through the DEC Telephone Hotline, which is 1-800-457-7362.

DEC Regional Offices:

REGION 1 Regional Water Engineer NYS SUNY , Bldg. 40 Loop Road Stony Brook, NY 11790-2356 Phone: 631-444-0405 Fax: 631-444-0373 Counties: Nassau Suffolk

REGION 2 Regional Water Engineer One Hunters Point Plaza 47-40 21st St. Long Island City, NY 11101-5407 Phone: 718-482-4900 Fax: 718-482-6516 Counties: Queens Bronx New York Richmond Kings

REGION 3

Regional Water Engineer 21 So. Putt Corners Rd New Paltz, NY 12561-1696 Phone: 845-256-3000 Fax: 845-255-0714 Counties: Rockland Dutchess Sullivan Orange Ulster Putnam Westchester

| - | REGION 4 | - | - | REGION 5 | ***** | - | REGION 6 | - | | - | Regional Water Engineer | - | - | ***** | er Engineer | - | ****** | - | | - | 1150 North Westcott Rd. | - | - | Regional Wat | . Box 296 | - | Regional Water Engineer | - | | - | Schenectady, NY 12306-2014 | - | - | Route 86, P.O | Y. 12977-0296 | - | Region 6 Suboffice | - | | - | Phone: 518-357-2045 Fax: 518-357-2398 | - | - | Ray Brook N. | 97-1241 Fax: 518-897-1245 | - | State Office Bldg. | - | | - | Counties: | - | - | Phone: 518-8 | Hamilton Franklin | - | 207 Genesee St. | - | | - | Montgomery Albany | - | - | Counties: | Saratoga Warren | - | Utica, NY 13500 | - | | - | Otsego Rensselaer Columbia | - | - | Clinton | Washington | - | Phone: 315-793-2554 Fax: 315-793-2748 | - | | - | Delaware | - | - | Essex | - | - | Counties: | - | | - | Schoharie Greene | - | - | Fulton | - | - | Lewis Jefferson | - | | - | Schenectady | - | - | - | - | - | Herkimer | - | | - | - | - | - | - | - | - | Oneida St. Lawrence | - | | - | REGION | 7 | - | REGION 8 | er Engineer | - | REGION 9 | - | | - | - | Water Engineer | - | Regional Wat | on-Lima Rd | - | Regional Water Engineer | - | | - | - | lvd West | - | 6274 East Av | 414-9519 | - | 270 Michigan Avenue | - | | - | - | NY 13204-2400 | - | Avon, NY 14 | 26-2466 Fax: 585-226-2830 | - | Buffalo, NY 14203-2999 | - | | - | - | 5-426-7506 Fax: 315-426-7402 | - | Phone: 585-2 | Orleans Genessee | - | Phone: 716-851-7070 Fax: 716-851-7009 | - | | - | - | Madison Cayuga | - | Counties: | Schuyler Seneca | - | **Counties:**Allegany | - | | - | - | Onondaga Oswego | - | Chemung | Steuben Ontario | - | Erie | - | | - | - | Tioga Tompkins | - | Livingston | Wayne Yates | - | Cattaraugus | - | | - | - | - | - | Monroe | - | - | Niagara Wyoming | - | | - | - | - | - | - | - | - | Chautauqua | - | Regional 615 Erie B Syracuse, Phone: 31 Counties: Broome Chenango Cortland

| - | ****** | REGION 3 Suboffice | - | - | REGION 5 Suboffice | - | - | REGION 6 Suboffice | | - | - | Regional Water Staff | - | - | Regional Water Staff | - | - | Regional Water Staff | | - | - | 200 White Plains Rd.., 5th Floor | - | - | Box 220, Hudson St Extension | - | - | 317 Washington St. | | - | - | Tarrytown, NY 10591-5805 | - | - | Warrensburg, NY 12885-0220 | - | - | Watertown, NY 13601-3787 | | - | - | Phone: 914-332-1835 | - | - | Phone: | - | - | Phone: 315-785-2513 | | - | - | Fax: 914-332-4670 | - | - | 518-623-1200 | - | - | Fax: 315-785-2422 | | - | - | - | - | - | Fax: | - | - | - | | - | - | - | - | - | 518-623-4193 | - | - | - |

• 1 This requirement reflects proposed pending regulations.

A-3

Technical Report

prepared for:

Village of Red Hook

7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Report Date: 05/21/2025 Client Project ID: Wastewater 2025 York Project (SDG) No.: N5E0269

CT Cert. No. PH-0800

New York Cert. No. 11706

56 Church Hill Road #2 Newtown, CT 06470 (203) 270-9973 FAX (203) 270-3348

ClientServices@yorklab.com

www.YORKLAB.com

LY Page 1 of 7

Report Date: 05/21/2025 Client Project ID: Wastewater 2025 York Project (SDG) No.: N5E0269

Village of Red Hook 7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Purpose and Results

This report contains the analytical data for the sample(s) identified on the attached chain-of-custody received in our laboratory on May 07, 2025 and listed below. The project was identified as your project: Wastewater 2025 .

The analyses were conducted utilizing appropriate EPA, Standard Methods, and ASTM methods as detailed in the data summary tables.

All samples were received in proper condition meeting the customary acceptance requirements for environmental samples except those indicated under the Sample and Analysis Qualifiers section of this report.

All analyses met the method and laboratory standard operating procedure requirements except as indicated by any data flags, the meaning of which are explained in the Sample and Data Qualifiers Relating to This Work Order section of this report and case narrative if applicable.

Please contact Client Services at 203-270-9973 with any questions regarding this report.

Page 2 of 7

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Analysis Conducted by: Phoenix Environmental Labs, Inc.

Results

|Parameter|Result|Units|Qualifier|RL|MCL|Reference Method|Prepared Date/Time|Analyzed Date/Time|Analyst| |---|---|---|---|---|---|---|---|---|---| |Carbonaceous BOD|220|mg/L||43.00|-|SM5210B-16|05/08/2025 14:50|05/08/2025 14:50|PHO| |||||||Certifications:||||

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Definitions and Other Information

Analyte is not certified or the state of the samples origination does not offer certification for the Analyte.

MCL

The Maximum Contaminant Level (MCL) is the maximum concentration of a chemical that is allowed in public drinking water systems. The MCL is established by the U.S. Environmental Protection Agency (EPA). Some states have MCLs that are equal to or less than the Federally established MCL. The listed MCL value reflects the MCL established by the State where the sample was taken.

General Notes for

1. The RLs and MDLs (Reporting Limit and Method Detection Limit respectively) reported are adjusted for any dilution necessary due to the levels of target and/or non-target analytes and matrix interference. The RL(REPORTING LIMIT) is based upon the lowest standard utilized for the calibration where applicable.

2. Samples are retained for a period of thirty days after submittal of report, unless other arrangements are made.

3. York's liability for the above data is limited to the dollar value paid to York for the referenced project.

4. This report shall not be reproduced without the written approval of York Analytical Laboratories, Inc.

5. All analyses conducted met method or Laboratory SOP requirements. See the Sample and Data Qualifiers Section for further information.

6. It is noted that no analyses reported herein were subcontracted to another laboratory, unless noted in the report.

7. This report reflects results that relate only to the samples submitted on the attached chain-of-custody form(s) received by York.

Approved By:

Date: May 21, 2025

Cassie Mosher Chemistry Director Phil Murphy Interim Microbiology Director

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348

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Technical Report

prepared for:

Village of Red Hook

7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Report Date: 05/23/2025 Client Project ID: Village of Red Hook York Project (SDG) No.: N5E0475

CT Cert. No. PH-0800 New York Cert. No. 11706

56 Church Hill Road #2 Newtown, CT 06470 (203) 270-9973 FAX (203) 270-3348

ClientServices@yorklab.com

www.YORKLAB.com

LY Page 1 of 7

Report Date: 05/23/2025

Client Project ID: Village of Red Hook York Project (SDG) No.: N5E0475

Village of Red Hook 7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Purpose and Results

This report contains the analytical data for the sample(s) identified on the attached chain-of-custody received in our laboratory on May 14, 2025 and listed below. The project was identified as your project: Village of Red Hook .

The analyses were conducted utilizing appropriate EPA, Standard Methods, and ASTM methods as detailed in the data summary tables.

All samples were received in proper condition meeting the customary acceptance requirements for environmental samples except those indicated under the Sample and Analysis Qualifiers section of this report.

All analyses met the method and laboratory standard operating procedure requirements except as indicated by any data flags, the meaning of which are explained in the Sample and Data Qualifiers Relating to This Work Order section of this report and case narrative if applicable.

Please contact Client Services at 203-270-9973 with any questions regarding this report.

1-4 is effluent 5-7 is influent of new plant

Page 2 of 7

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Results

|Parameter|Result|Units|Qualifier|RL|MCL|Reference Method|Prepared Date/Time|Analyzed Date/Time|Analyst| |---|---|---|---|---|---|---|---|---|---| |Carbonaceous BOD|110|mg/L||48.00|-|SM5210B-16|05/15/2025 16:55|05/15/2025 16:55|PHO| |||||||Certifications:||||

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Newtown, CT 06470 FAX (203) 270-3348

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Definitions and Other Information

< 4.0 < 4.0

Analyte is not certified or the state of the samples origination does not offer certification for the Analyte.

MCL

The Maximum Contaminant Level (MCL) is the maximum concentration of a chemical that is allowed in public drinking water systems. The MCL is established by the U.S. Environmental Protection Agency (EPA). Some states have MCLs that are equal to or less than the Federally established MCL. The listed MCL value reflects the MCL established by the State where the sample was taken.

General Notes for N5E0475

1. The RLs and MDLs (Reporting Limit and Method Detection Limit respectively) reported are adjusted for any dilution necessary due to the levels of target and/or non-target analytes and matrix interference. The RL(REPORTING LIMIT) is based upon the lowest standard utilized for the calibration where applicable.

2. Samples are retained for a period of thirty days after submittal of report, unless other arrangements are made.

3. York's liability for the above data is limited to the dollar value paid to York for the referenced project.

4. This report shall not be reproduced without the written approval of York Analytical Laboratories, Inc.

5. All analyses conducted met method or Laboratory SOP requirements. See the Sample and Data Qualifiers Section for further information.

6. It is noted that no analyses reported herein were subcontracted to another laboratory, unless noted in the report.

7. This report reflects results that relate only to the samples submitted on the attached chain-of-custody form(s) received by York.

Approved By:

Date: May 23, 2025

Cassie Mosher Chemistry Director Phil Murphy Interim Microbiology Director

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348

ClientServices@yorklab.com Page 6 of 7 [

www.YORKLAB.com

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Technical Report

prepared for:

Village of Red Hook

7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Report Date: 05/30/2025 York Project (SDG) No.: N5E0683

Client Project ID: Village of Red Hook Wastewater

CT Cert. No. PH-0800 New York Cert. No. 11706

56 Church Hill Road #2 Newtown, CT 06470 (203) 270-9973 FAX (203) 270-3348

ClientServices@yorklab.com

www.YORKLAB.com

LY Page 1 of 7

Report Date: 05/30/2025

Client Project ID: Village of Red Hook Wastewater York Project (SDG) No.: N5E0683

Village of Red Hook 7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Purpose and Results

This report contains the analytical data for the sample(s) identified on the attached chain-of-custody received in our laboratory on May 21, 2025 and listed below. The project was identified as your project: Village of Red Hook Wastewater .

The analyses were conducted utilizing appropriate EPA, Standard Methods, and ASTM methods as detailed in the data summary tables.

All samples were received in proper condition meeting the customary acceptance requirements for environmental samples except those indicated under the Sample and Analysis Qualifiers section of this report.

All analyses met the method and laboratory standard operating procedure requirements except as indicated by any data flags, the meaning of which are explained in the Sample and Data Qualifiers Relating to This Work Order section of this report and case narrative if applicable.

Please contact Client Services at 203-270-9973 with any questions regarding this report.

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Client Sample ID: A1 - EFFLUENT

Analysis Conducted by: Phoenix Environmental Labs, Inc.

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Analysis Conducted by: Phoenix Environmental Labs, Inc.

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Definitions and Other Information

Analyte is not certified or the state of the samples origination does not offer certification for the Analyte.

MCL

The Maximum Contaminant Level (MCL) is the maximum concentration of a chemical that is allowed in public drinking water systems. The MCL is established by the U.S. Environmental Protection Agency (EPA). Some states have MCLs that are equal to or less than the Federally established MCL. The listed MCL value reflects the MCL established by the State where the sample was taken.

General Notes for

1. The RLs and MDLs (Reporting Limit and Method Detection Limit respectively) reported are adjusted for any dilution necessary due to the levels of target and/or non-target analytes and matrix interference. The RL(REPORTING LIMIT) is based upon the lowest standard utilized for the calibration where applicable.

2. Samples are retained for a period of thirty days after submittal of report, unless other arrangements are made.

3. York's liability for the above data is limited to the dollar value paid to York for the referenced project.

4. This report shall not be reproduced without the written approval of York Analytical Laboratories, Inc.

5. All analyses conducted met method or Laboratory SOP requirements. See the Sample and Data Qualifiers Section for further information.

6. It is noted that no analyses reported herein were subcontracted to another laboratory, unless noted in the report.

7. This report reflects results that relate only to the samples submitted on the attached chain-of-custody form(s) received by York.

Approved By:

Date: May 30, 2025

Cassie Mosher Chemistry Director Phil Murphy Interim Microbiology Director

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Technical Report

prepared for:

Village of Red Hook

7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Report Date: 06/13/2025 Client Project ID: Wastewater 2025 York Project (SDG) No.: N5E0833

CT Cert. No. PH-0800

New York Cert. No. 11706

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LY Page 1 of 9

Report Date: 06/13/2025 Client Project ID: Wastewater 2025 York Project (SDG) No.: N5E0833

Village of Red Hook 7467 S Broadway Red Hook, NY 12571 Attention: J. Cavanaugh

Purpose and Results

This report contains the analytical data for the sample(s) identified on the attached chain-of-custody received in our laboratory on May 28, 2025 and listed below. The project was identified as your project: Wastewater 2025 .

The analyses were conducted utilizing appropriate EPA, Standard Methods, and ASTM methods as detailed in the data summary tables.

All samples were received in proper condition meeting the customary acceptance requirements for environmental samples except those indicated under the Sample and Analysis Qualifiers section of this report.

All analyses met the method and laboratory standard operating procedure requirements except as indicated by any data flags, the meaning of which are explained in the Sample and Data Qualifiers Relating to This Work Order section of this report and case narrative if applicable.

Please contact Client Services at 203-270-9973 with any questions regarding this report.

Page 2 of 9

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Analysis Conducted by: Phoenix Environmental Labs, Inc.

Results

|Parameter|Result|Units|Qualifier|RL|MCL|Reference Method|Prepared Date/Time|Analyzed Date/Time|Analyst| |---|---|---|---|---|---|---|---|---|---| |Carbonaceous BOD|4.6|mg/L|HT-01|4.00|-|SM5210B-16|05/30/2025 17:00|05/30/2025 17:00|PHO| |||||||Certifications:||||

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56 Church Hill Road #2 (203) 270-9973

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www.YORKLAB.com

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Definitions and Other Information

TNTC Too numerous to count

HT-01 This result was reported from an analysis conducted outside of the EPA recommended holding time.

• Analyte is not certified or the state of the samples origination does not offer certification for the Analyte.

MCL The Maximum Contaminant Level (MCL) is the maximum concentration of a chemical that is allowed in public drinking water systems. The MCL is established by the U.S. Environmental Protection Agency (EPA). Some states have MCLs that are equal to or less than the Federally established MCL. The listed MCL value reflects the MCL established by the State where the sample was taken.

General Notes for N5E0833

1. The RLs and MDLs (Reporting Limit and Method Detection Limit respectively) reported are adjusted for any dilution necessary due to the levels of target and/or non-target analytes and matrix interference. The RL(REPORTING LIMIT) is based upon the lowest standard utilized for the calibration where applicable.

2. Samples are retained for a period of thirty days after submittal of report, unless other arrangements are made.

3. York's liability for the above data is limited to the dollar value paid to York for the referenced project.

4. This report shall not be reproduced without the written approval of York Analytical Laboratories, Inc.

5. All analyses conducted met method or Laboratory SOP requirements. See the Sample and Data Qualifiers Section for further information.

6. It is noted that no analyses reported herein were subcontracted to another laboratory, unless noted in the report.

7. This report reflects results that relate only to the samples submitted on the attached chain-of-custody form(s) received by York.

Approved By:

Date: June 13, 2025

Cassie Mosher Chemistry Director Phil Murphy Interim Microbiology Director

56 Church Hill Road #2 (203) 270-9973

Newtown, CT 06470 FAX (203) 270-3348

ClientServices@yorklab.com Page 7 of 9 [

www.YORKLAB.com

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