Document oeGO1VEam2LXp8rELnYg5NjO8

DATE: SUBJECT: FROM: THRU: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 June 13, 2025 CLEAN WATER ACT INSPECTION REPORT Village of Doylestown Wastewater Treatment Plant, Wayne County, Ohio Jonathan Moody, Environmental Engineer WECAB, Multimedia Section Brooke Furio, Section Supervisor WECAB, Multimedia Section BASIC INFORMATION Facility Name: Village of Doylestown Wastewater Treatment Plant Facility Type: Publicly owned treatment works NPDES Permit Number: OH0021342 Date(s) of Inspection: April 15 to 16, 2025 EPA Inspector(s): 1. Jonathan Moody 2. Megan Bobb 3. Gabrielle Giampietro Facility Representative(s): Mark Lightner, Operator in Charge Contact Email Address: Owner Contact Village of Doylestown 24 S. Portage Street Doylestown, OH 44230 Operator Contact Mark Lightner 330-658-2181 mlightner@Doylestown.com Physical Facility Address 135 Calaboone Road, Doylestown, Ohio 44230 Inspection Type: Compliance Evaluation Inspection without sampling, with field monitoring. Facility Notification: Unannounced Inspection Announced Inspection Arrival Date and Time: 4/15/2025 9:00 AM Departure Date and Time: 4/16/2025 12:30 PM OPENING CONFERENCE Presented Credentials Stated authority and purpose of inspection Provided Small Business Resource Information Sheet Small Business Resource Information Sheet not provided. Reason: Current version of the factsheet may not comply with recent Executive Orders. Provided CBI notification to facility The following information was obtained verbally from Mark Lightner unless otherwise noted. Company Ownership: Village of Doylestown, Ohio Company Contact Information: 330-658-2181, mlightner@Doylestown.com Background: The facility in question is a sewage treatment plant. According to the facility's Discharge Monitoring Reports (DMRs) for the period from January 1, 2023, through December 31, 2024, the reported average daily flow was 0.278 million gallons per day (MGD), while the maximum daily flow recorded was 0.815 MGD. However, as discussed below, the reported maximum value of 6.5 MGD in August 2024 appears to be an error in the DMR. Process Description: The plant features a variety of treatment components, including: - A mechanically cleaned screen, - Two aerated equalization basins, - A clarigester, which serves as a combination of a primary clarifier and an anaerobic digester, - A trickling filter, - An aeration basin, - Two final clarifiers, Page 2 of 15 - Two rotating biological contactors (RBCs), - A disinfection and dechlorination system, and - A small post-aeration feed. The facility discharges its treated effluent into Silver Creek. The facility has limited internal bypasses on the screen and the RBCs, but does not need to utilize them during high flows. Staff Interview(s): Facility Operations and Staffing: Mark Lightner is the operator in charge of the facility, with Joe Petit and Nick Spach providing additional operational support. There are no other staff members or dedicated collections system personnel. The plant is staffed every day, with normal weekday hours from 7:00 AM to 3:30 PM. Weekend staffing is limited to a few hours in the morning. Onsite Analysis: The facility conducts onsite analysis for compliance monitoring samples, specifically measuring total suspended solids, pH, chlorine, and dissolved oxygen. Sanitary Sewer Overflows: The facility reported sanitary sewer overflows in May and December 2022, prior to Mark Lightner's tenure as the operator. He does not have details regarding these overflows. According to Mark Lightner, there are no known collection system sanitary sewer overflows or constructed reliefs. Basement backups have occurred due to blockages in the sewer laterals and mains. Collection System and Infrastructure: The collection system includes seven pump stations. A map in the wastewater treatment building office indicates overflow tanks at two of the pump stations. Mark Lightner is unaware of the history of these overflow tanks and mentioned that modifications were made before his time. There are six lift stations throughout the collection system, all equipped with alarms. However, only three stations--Meadows, Silver Creek, and Maple Street--can initiate alarm callouts to the operator, which are triggered by power outages rather than high levels. Records of these callouts are not maintained. Each lift station has backup power, and the entire treatment plant can operate on backup power. Compliance and Monitoring Issues: Mark Lightner noted that the Cadmium Compliance Schedule Plan, as required in the NPDES permit, has not been completed. Page 3 of 15 Copper Exceedances: In response to recent effluent exceedances, particularly concerning copper levels, Mark Lightner conducted copper sampling in 2024 within the collection system and throughout the treatment facility. A summary of this additional copper monitoring can be found in the records review section. He identified one industrial discharger, Midwest Poly Pack, and one commercial discharger, a funeral home in downtown Doylestown. Although there is agricultural activity near the southeast portion of the collection system, Mark is unaware of any dairies or livestock operations. The plan is to continue increased monitoring in the collection system, with no current plans to alter the copper treatment process. Ammonia Exceedances: Regarding the ammonia exceedances in October 2024, Mark Lightner explained that the trickling filter may have been cleaned during that period, and maintenance activities included draining the aeration tank to the holding pond, which could have contributed to the exceedance. There are no plans to modify the ammonia treatment process. pH Exceedances: Issues with the inline pH probe prompted Mark Lightner to switch to using a bench-top pH probe, the Oakton PCTS 50, which is calibrated weekly using a three-point calibration method. Phosphorus Exceedances: Mark Lightner is uncertain about the cause of the phosphorus exceedances in August 2024. Although there is consideration to increase ferric chloride dosing, there are no plans to change the phosphorus treatment system. Data Discrepancies: Mark Lightner is unsure why the August 2024 DMR reported a maximum flow of 6.5 MGD, and onsite records do not provide any clarification. FACILITY WALK-THROUGH OCCURRED: Yes Data Collected and Observations: Water flows into the facility at the automatically cleaned mechanical bar screen located at the far western end of the facility. Sampling and monitoring for the influent requirements in the NPDES permit are collected from the channel running between the mechanical screen and equalization basin. There was a pH probe (photo 7) and a flow sensor (photo 10) in the channel, and an automatic composite sampler, Hach AS950, with an all-weather enclosure and refrigerated compartment. Composite sample collection was not occurring at the time of the inspection, however the refrigerator was running and the thermometer in the compartment Page 4 of 15 showed 15 degrees Celsius (Photo 9). Mark Lightner was not certain, but thought the device was set to collect a time-based composite. At 1:20 PM on 4/15/2025 EPA observed the lift station and overflow tank near Ross Avenue and Summit Street. At the time of the inspection the overflow tank could not be opened. The lift station was equipped with a high-level alarm and a light. The configuration of the lift station and the overflow tank could not be determined at the time of the inspection. At 1:34 PM on 4/15/2025 EPA observed the lift station and overflow tank near Greenwood Drive and Collier Drive. The lift station was equipped with a high-level alarm and a light. The configuration of the lift station and the overflow tank could not be determined at the time of the inspection. On 4/16/2025 the inspection resumed at the secondary clarifiers. There are two secondary clarifiers, the western clarifier is also called the upper clarifier, and the eastern clarifier is called the lower clarifier. The overflow weir into the outlet trough, or launderer is a double-sided octagon shaped trough surrounding the center well. The weir plate was smooth, without a sawtoothed pattern. At 9:06 there was flow through gaps in the launderer wall near the support structure (photo 34). There were breakthroughs at several other locations shown in photos 38, and 43 (eastern clarifier). At 9:17 AM EPA observed uneven flow of water over portions of the overflow weir into the secondary clarifier outlet trough, or launderer. This condition is visible in photos 35, 36, 39, 43, 45, and 46 where the inside side of the launderer wall is dry. At 9:18 AM there were leaves and debris located on the surface of the clarifier, adjacent to the overflow weir on the eastern (lower) clarifier (photo 44). Both the eastern and western clarifiers had scum and floating material on the surface of the water inside the center wells, upstream of the baffles and overflow weirs (photos 36, 39, 45 and 46). At 9:38 AM EPA observed the effluent sampling monitoring station. The station was a utility sink which held a continuous flow of water pumped from the upstream end of the chlorine contact basin. There was a dissolved oxygen probe and a pH probe in the utility sink. The dissolved oxygen probe was used for Permit compliance. The pH probe did not work, and a benchtop pH probe was used for grab measurements for Permit compliance purposes. The sink was the location of Monitoring Point 03. There was a NIST traceable thermometer located in the refrigerator used to hold the composite sample bottle. Samples were not being collected at the time of the inspection, however the refrigerator was running and the thermometer showed 3 degrees Celsius. The calibration on the thermometer expired on April 18, 2021. Per Mark Lightner, the composite sampler is programmed for a time-based composite. Page 5 of 15 At 10:09 AM EPA conducted field monitoring (monitoring point 06) at the outlet from the chlorine contact chamber, immediately downstream of the location where dechlorination chemicals will be added. The disinfection and dechlorination system were not operating at the time of the inspection. The system is not required to operate over the winter months November through April. Photos and/or Videos: were taken during the inspection. Photos taken during the inspection are included in Appendix B. Field Measurements: were taken during this inspection. Documents reviewed onsite: While onsite Megan Bobb and Gabrielle Giampietro reviewed selected copies of the August and October 2023 and May and August 2024 DMRs and laboratory reports. The DMR for October 2023 and bench sheet had discrepancies with the pH values for October 28th and 29th. The effluent pH values reported were 9.87 and 9.86 respectively, the values on the bench sheet were 6.90 and 6.87 respectively. EPA obtained copies of this DMR or bench sheet. The DMR for October 2023 reports a value of 0.015 MGD for the flow on October 12, 2023. The bench sheet with the daily flow values shows a value of 0.215 MGD on October 12, 2023. EPA obtained copies of the DMR and the bench sheet. The DMR for August 2024 reports a Total Kjeldahl Nitrogen (TKN) value of 5.31 mg/L in the effluent for a sample collected on August 7, 2024. The laboratory report for the sample reported a TKN value of 5.13 mg/L. There is no permit compliance limit for TKN. EPA obtained copies of the partial August 2024 DMR and laboratory report. The DMR for August 2024 reported a max flow of 6.5 MGD, but the bench sheet reported a max flow of 0.666 MGD. EPA did not obtain copies during the inspection, but copies of bench sheet and DMR were emailed on June 9, 2025. EPA also reviewed copies of a hard copy manual for operations and maintenance produced by Hammontree & Associates. The cover page of the manual was missing, but the document contained information on all of treatment units which were currently in use at the facility. These include the equalization basin, the clarigester, the trickling filter, the retrofitted aeration basin and the RBCs. Page 6 of 15 The manual included diagrams of the secondary clarifier with a note stating "Launder system, gravel pans & Feedwell supports (all not by EIMCO) are not shown for clarity. Design of this equipment is not by EIMCO." A screen grab of the note is provided on the next page. Page 7 of 15 From DSCN2614.JPG, Figure 5.11-1 from the Operations Manual. Clip of image DSCN2590.JPG Drawing of the lift station and overflow tank at Ross Avenue and Summit Street. Clip of photo DSCN2591.JPG - Drawing of the lift station and overflow tank at Greenwood Drive and Collier Drive. Requested documents: The laboratory reports and summary table for the additional copper sampling conducted between October 2024 and February 2025.  The manufacturer and model numbers for the pH equipment at the influent and effluent monitoring stations, and the most recent calibration records for those items. For the flow monitoring devices at the influent and effluent, the manufacturer and model numbers and the most recent calibration records for those items. Documents Received From Facility: On May 8, 2025 EPA received two files from the Mark Lightner. The files included: Cal record and copper test_.pdf - This is a PDF which includes the 2022, 2023 and 2025 calibration records and laboratory reports for the additional copper monitoring conducted in 2024. CoppertestingWWTP.xlsx - Summary document with the results of the additional copper monitoring conducted in 2024. EPA summary of the Cal record and copper test_.pdf document Monitoring device Calibration Report Effluent Flow Meter - Greyline Instruments Zero flow calibration was conducted on April OCF 5.0, Open Channel ultrasonic, Effluent 21, 2025. Flow Meter, Sensor Model PZ15 in a 12" palmer Bowlus Flume. Effluent DO monitoring - RDO, Pro X Optical Calibration notes indicate that a sensor cap replacement is required. Effluent pH probe - USABB Model 28218, pH probe is out of compliance, probe cannot Differential Effluent pH Probe, 02 Wire be field calibrated, replacement only. Influent Flow Meter - Hach AV9000, Area Performed an air and a submerged sensor Velocity, Influent Flow Meter Sigma calibration Submerged AV Probe Influent pH probe - USABB Model 28218, pH probe is out of compliance, probe cannot Differential Effluent pH Probe, 02 Wire be field calibrated, replacement only. Page 10 of 15 The table below is the contents of the document CoppertestingWWTP.xlsx Copper Testing Doylestown WWTP Date: 10/2/2024 11/6/2024 12/11/2024 1/28/2025 2/5/2025 Influent 39 49 57 59 - Clarigester P.C #1 36 41 51 ** - T.Filter Spliter box P.C#2 44 60 51 39 - Aeration Tank P.C#3 23 90 61 53 - Upper Clarifier P.C#4 <10 <10 <10 20 - Lower Clarifier P.C#5 <10 <10 <10 28 - Effluent <10 <10 <10 15 <10 P.S#1 Meadows 1380 <10 23 - P.S#2 Maple St 82 75 128 - P.S#3 Hidden Pond 95 60 95 - P.S#4 Collier 70 53 83 - P.S#5 Summit 79 70 103 - P.S#6 Silver Creek 154 55 61 - CLOSING CONFERENCE Provided U.S. EPA point of contact to the facility. Explained Inspection Report Process Confirm CBI status at end of closing conference. No CBI claimed. Discussed Preliminary Area(s) of Concern Areas of Concern: 1. NPDES Permit No. OH0021342 Part I. A. tables 1 and 2 include the interim and final effluent limitations for Outfall 001. Between January 1, 2020 and December 31, 2024 there were 78 instances of effluent exceedances. In the most recent 12 months the facility experienced exceedances for pH, total suspended solids, copper, phosphorous, and ammonia. A full table of exceedances is included in Appendix D. A summary chart is provided below. 2. NPDES Permit No. OH0021342 Part III - General Conditions 3. Facility, Operation, and Quality Control A. "At all times, the permittee shall maintain in good working order and operate as efficiently as possible all treatment or control facilities, or systems installed or used by the permittee necessary to achieve compliance with the terms and conditions of this permit" EPA noted the following areas of concerns regarding the facility operation: o The thermometer in the sample storage compartment at the influent monitoring station showed 15 degrees C. There is not a record of a verification check against a NIST traceable device (Photo 9). o There were gaps or leaks at the supports for the weir plates at the overflow from the secondary clarifier. Additionally, the weir edges were straight and not level which resulted in an uneven flow over the weir, with some locations being dry and showing no water flow over the weir (Photos 33 through 46). o Floating debris, scum and leaves were present on the surface of the secondary clarifier. The clarifier was not equipped with an automatic scum removal equipment downstream of the center well baffle. o The most recent calibration report for the effluent pH probe, effluent DO probe, and the influent pH probe indicated that all three probes were not functioning properly. The facility has begun using alternative equipment for compliance measurements. 3. NPDES Permit No. OH0021342 Part II. F. "Composite samples shall be comprised of a series of grab samples collected over a 24-hour period and proportionate in volume to the sewage flow rate at the time of sampling. Such samples shall be collected at such times and locations, and in such a fashion, as to be representative of the facility's overall performance." The composite sampler at the effluent location was programed to collect samples for a time-based composite, instead of the volume (or flow) based proportioning required by the Permit. The composite sampler at the influent had a flow meter, but the programing could not be determined at the time of the inspection. The effluent DO monitoring is conducted at the upstream end of the chlorine contact chamber. The facility uses a bisulfite based dechlorination chemical which is introduced at a location downstream of the DO monitoring.. This chemical is an oxygen scavenger and can reduce the dissolved oxygen concentration. 4. NPDES Permit No. OH0021342 Part III. 4. Reporting "A. Monitoring data required by this permit shall be submitted monthly on Ohio EPA 4500 Discharge Monitoring Report (DMR) forms using the electronic DMR (e-DMR) internet application." EPA noted the following discrepancies between onsite records and the DMRs o October 12, 2023 effluent flow was reported on the DMR as 0.015 MGD, the bench sheet value was 0.215 MGD. o The October 28th and 29th 2023 effluent pH values were reported on the DMR as 9.87 and 9.86 respectively, and the effluent pH values on the bench sheet were 6.90 and 6.87. o August 7, 2024 Lab result for TKN was 5.31, lab value was 5.13 Page 13 of 15 o August 2024 maximum flow was reported as 6.5 MGD when the bench sheets showed 0.666 MGD. The 6.5 MGD reported flow caused the phosphorous and TSS loading exceedances in August 2024. The loading violations were not associated with concentration limit exceedances. 5. NPDES Permit No. OH0021342 Part I. C. 1. Schedule of Compliance "The permitee shall attain compliance with the effluent design requirements listed in the final effluent table for Outfall 3PB00014001 as expeditiously as possible, but no later than the dates developed in accordance with the following schedule..." At the time of the inspection the status reports for compliance with the cadmium effluent limits had not been completed. The final effluent limit became effective in November 2024. Previous monitoring from January 2020 through December 2024 shows cadmium levels below the final monthly average limit of 5.1 ug/L, for all periods except October 2022 when the system experienced an effluent exceedance. Appendices and Attachments A. Aerial Image B. Digital Image Log C. Field Measurement Data D. Table of Effluent Exceedances DIGITAL SIGNATURES Report Author Name and Title: Jonathan Moody, Environmental Engineer Moody, Digitally signed by Moody, Jonathan Jonathan Date: 2025.06.13 09:15:42 -04'00' Report Author Signature:_________________________________ Section Supervisor Name and Title: Brooke Furio, Multimedia Section Supervisor BROOKE Digitally signed by BROOKE FURIO FURIO Date: 2025.06.13 09:33:40 -04'00' Section Supervisor Signature:_________________________________ Page 14 of 15 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 APPENDIX A: AERIAL Page 15 of 15 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 APPENDIX B: DIGITAL IMAGE LOG Photographer Name: Jonathan Moody Camera Model, S/N: Nikon CoolPix W300 S/N:31034420 Village of Doylestown Wastewater Treatment Plant Digital Photo Log Photos taken with Nikon CoolPix W200 S/N 31034420 Appendices Page 1 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 1: DSCN2526.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 10:13 AM Camera Direction: Inside Description: Sanitary system map. Appendices Page 2 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 2: DSCN2527.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 10:13 AM Camera Direction: Inside Description: Summary of the 2024 and 2025 copper monitoring data. 3: DSCN2528.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:03 AM Camera Direction: Inside Description: Inside the screening building looking a the channel with the pH probe and flow monitoring device at the headworks. 4: DSCN2529.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:04 AM Camera Direction: Down, west Description: Unused fixed screen located at a the plant headworks. This location could be used to bypass the mechanically cleaned bar screen. The channel connects into the equalization basins. 5: DSCN2530.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:08 AM Camera Direction: Northeast Description: Northern cell of the equalization basins. The floor is sloped toward the camera. Floating material is accumulated on the surface. Dried scum is raked out and disposed of in dumpsters. 6: DSCN2531.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:08 AM Camera Direction: Down, West Description: In a channel connecting the mechanically cleaned bar screen to the equalization basin. Compliance sampling for the influent is collected from water in this channel. This was the location of Monitoring Point 01. Appendices Page 3 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 7: DSCN2532.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:10 AM Camera Direction: Down Description: In a channel connecting the mechanically cleaned bar screen to the equalization basin. pH probe at the influent monitoring station. 8: DSCN2533.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:10 AM Camera Direction:West Description: Readout for the pH probe shown in Photo 7 at the influent monitoring location. This measurement is not used for compliance monitoring. 9: DSCN2534.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:11 AM Camera Direction: Inside Description: Thermometer inside the sample collection compartment of the automatic sampler. At the time of the inspection, samples were not being collected, the cooling function seemed active, and the thermometer was reading approximately 15 degrees C. 10: DSCN2535.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:17 AM Camera Direction: Down Description: In a channel connecting the mechanically cleaned bar screen to the equalization basin. There was an Area-Velocity flow measurement device at this location, material had accumulated on the device, and the operator was uncertain about the purpose of the device, but was able to produce a calibration report. 11: DSCN2536.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:18 AM Camera Direction: Southwest Description: At the channel connecting the mechanically cleaned bar screen to the equalization basin. Composite compliance samples are collected using a Hach AS950 shown in this photo. Appendices Page 4 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 12: DSCN2537.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:19 AM Camera Direction: South Description: At the south cell of the equalization basin. There were mechanical mixers present, the operator was unsure if they still functioned. 13: DSCN2538.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:23 AM Camera Direction: Down Description: Skimmer arm on the clarigester. 14: DSCN2539.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:24 AM Camera Direction: North Description: Skimmer arm on the clarigester. This side of the skimmer did not have a baffle piece at the farthest edge. The operator thought this was intentional. 15: DSCN2540.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:24 AM Camera Direction: North Description: Skimmer arm on the clarigester, this side of the skimmer did not have a baffle piece at the farthest edge. The operator thought this was intentional. 16: DSCN2541.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:27 AM Camera Direction: Down Description: Photo shows the open-air digester/sludge holding basin. The operator said this was sometimes aerated. At the time of the inspection, the aerators were not active. Appendices Page 5 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 17: DSCN2542.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:29 AM Camera Direction: North Description: A holding lagoon. Water enters this lagoon from sump pump in the office building or from a temporary pump at the clarigester. Water is pumped out of the clarigester, as needed, during high flow to prevent the clarigester from overflowing. This holding lagoon is dewatered to the equalization basin. 18: DSCN2543.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:30 AM Camera Direction: South Description: Trickling filter. 19: DSCN2544.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:31 AM Camera Direction: South Description: Trickling filter. 20: DSCN2545.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:34 AM Camera Direction: Down Description: Aeration basin. The basin was an old clarifier that was refitted to be used as an aeration tank. 21: DSCN2546.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:36 AM Camera Direction: East Description: At the aeration basin, looking toward the location where ferric chloride is added to the effluent from the aeration basin. Appendices Page 6 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 22: DSCN2547.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:38 AM Camera Direction: Down Description: At the aeration basin, looking toward the location where ferric chloride is added to the effluent from the aeration basin. 23: DSCN2548.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:43 AM Camera Direction: Inside Description: Label on the drum of ferric chloride. 24: DSCN2549.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:46 AM Camera Direction: Down Description: Secondary clarifier. At the time of the photo excessive wind was causing waves on the surface of the clarifier and the field portion of the treatment plant inspection was postponed till 4/16/25. 25: DSCN2550.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 11:46 AM Camera Direction: Down Description: Secondary clarifier. At the time of the photo excessive wind was causing waves on the surface of the clarifier and the field portion of the treatment plant inspection was postponed till 4/16/25. 26: DSCN2551.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 1:20 PM Camera Direction: South Description: Access hatch to the lift station near Ross Avenue and Summit Street. Appendices Page 7 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 27: DSCN2552.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 1:20 PM Camera Direction: North Description: Access hatch to the lift station near Ross Avenue and Summit Street. The concrete structure in the background is the "overflow tank". 28: DSCN2553.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 1:20 PM Camera Direction: North Description: Control panel for the lift station shown in Photo 26. 29: DSCN2554.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 1:21 PM Camera Direction: Down Description: Log book for the electrical runtime gauges in the lift station control panel shown in Photo 28. 30: DSCN2555.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 1:23 PM Camera Direction: South Description: Alarm light on the lift station near the intersection of Ross Avenue and Summit Street. 31: DSCN2556.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 1:23 PM Camera Direction: Northeast Description: At lift station near the intersection of Ross Avenue and Summit Street. The concrete structure in the foreground is the overflow tank, there is ravine with a stormsewer outlet in the background. Appendices Page 8 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 32: DSCN2557.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/15/2025 1:34 PM Camera Direction: North Description: Control panel at the location of the lift station near Greenwood Drive and Collier Drive. Day Two: 4/16/2025 33: DSCN2558.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:06 AM Camera Direction: Northwest Description: Western secondary clarifier. Appendices Page 9 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 34: DSCN2559.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:06 AM Camera Direction: Northwest Description: Western secondary clarifier, closeup of the launderer, with the straight overflow weir. At the time of the inspection, water was flowing through gaps (location marked with arrow) between the weir plates and the launderer trough. Appendices Page 10 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 35: DSCN2560.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:10 AM Camera Direction: Down Description: Western secondary clarifier, closeup of the launderer, with the straight overflow weir. At the time of the inspection, water flow over the weir was uneven, with some locations of the weir appearing dry. The arrow indicates one location of a dry spot on the launderer (outlet) side of the weir. Appendices Page 11 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 36: DSCN2561.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:10 AM Camera Direction: Down Description: Western secondary clarifier, closeup of the launderer, with the straight overflow weir. At the time of the inspection, water flow over the weir was uneven, with some locations of the weir appearing dry. The arrow indicates one location of a dry spot on the launderer (outlet) side of the weir. 37: DSCN2562.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:11 AM Camera Direction: Down Description: Western secondary clarifier, closeup of the launderer, with the straight overflow weir. Appendices Page 12 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 38: DSCN2563.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:11 AM Camera Direction: Down Description: Western secondary clarifier, closeup of the launderer, with the straight overflow weir. At the time of the inspection, water was flowing through gaps (location marked with arrow) between the weir plates and the launderer trough. Appendices Page 13 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 39: DSCN2564.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:11 AM Camera Direction: Down Description: Western secondary clarifier, closeup of the launderer, with the straight overflow weir. At the time of the inspection, water flow over the weir was uneven, with some locations of the weir appearing dry. The arrow indicates one location of a dry spot on the launderer (outlet) side of the weir. 40: DSCN2565.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:14 AM Camera Direction: Down Description: Western secondary clarifier, closeup of the launderer, with the straight overflow weir. Appendices Page 14 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 41: DSCN2566.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:17 AM Camera Direction: East Description: Ferric Chloride storage totes. 42: DSCN2567.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:17 AM Camera Direction: East Description: Eastern secondary clarifier. Appendices Page 15 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 43: DSCN2568.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:17 AM Camera Direction: Down Description: Eastern secondary clarifier, closeup of the launderer, with the straight overflow weir. At the time of the inspection, water flow over the weir was uneven, with some locations of the weir appearing dry. The circle indicates a location where water is flowing through a gap at the weir support. The arrow indicates a location where the backside of the weir is dry. Appendices Page 16 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 44: DSCN2569.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:18 AM Camera Direction: Description: Eastern secondary clarifier, closeup of the launderer, with the straight overflow weir. At the time of the inspection, there was free floating debris and leaves accumulating against the outside edge of the weir. The weir was not equipped with a skimming baffle outside of the center well. Appendices Page 17 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 45: DSCN2570.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:19 AM Camera Direction: Down Description: Eastern secondary clarifier, closeup of the launderer, with the straight overflow weir. At the time of the inspection, water flow over the weir was uneven, with some locations of the weir appearing dry. The arrow indicates a location where the launderer (outlet) side of the weir is dry. Appendices Page 18 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 46: DSCN2571.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:19 AM Camera Direction: Down Description: Eastern secondary clarifier, closeup of the launderer, with the straight overflow weir. At the time of the inspection, water flow over the weir was uneven, with some locations of the weir appearing dry. The arrows indicate a location where the launderer (outlet) side of the weir is dry. 47: DSCN2572.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:21 AM Camera Direction: Southeast Description: Looking at the lift station downstream of the secondary clarifiers that provides flow to the rotating biological contactors. Appendices Page 19 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 48: DSCN2573.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:23 AM Camera Direction: East Description: Control panel for the lift station downstream of the secondary clarifiers that provides flow to the rotating biological contactors. At the time of the inspection, the toggle in the middle of the panel, labeled "Flow Control" was turned to off. The operator was unsure of the purpose of this device. contactors. 49: DSCN2574.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:25 AM Camera Direction: Inside Description: Looking in one of the observations ports for the rotating biological 50: DSCN2575.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:26 AM Camera Direction: East Description: Looking between the rotating biological contactors. contactors. 51: DSCN2576.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:33 AM Camera Direction: Southeast Description: Looking at an access hatch to one of the rotating biological Appendices Page 20 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 52: DSCN2577.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:35 AM Camera Direction: Down Description: At the upstream end of the chlorine contact chamber. From the left to right, the small diameter plastic pipe was not connected and remained from a previous feed, the middle grey plastic pipe is for sample collection for the composite sampler and continuous monitoring equipment. The grey pipe on the right is the free chlorine feed. 53: DSCN2578.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:36 AM Camera Direction: Down Description: At the downstream end of the chlorine contact chamber. This the location where the dechlorination chemical is added prior to the final discharge. Appendices Page 21 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 54: DSCN2579.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:38 AM Camera Direction: Inside Description: Compliance sampling and continuous monitoring equipment at the effluent. The middle grey pipe in Photo 52 pumps water into this utility basin. There is a pH probe and a DO probe in this sink, but these are not used for compliance. Compliance measurements for DO and pH are collected from this sink using other equipment. The sampling tube for the composite sample pulls from this sink. This is the location of Monitoring Point 03. 55: DSCN2580.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:42 AM Camera Direction: Inside Description: Readout with Flow, DO and pH. The operator does not use this readout for DO and pH. Appendices Page 22 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 56: DSCN2581.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:42 AM Camera Direction: Inside Description: Readout for the flow totalizer. This is the total 24hr volume used for compliance reporting. 57: DSCN2582.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:44 AM Camera Direction: Inside Description: Temperature probe for the sample collection compartment on the composite sampler. At the time of the inspection the thermometer was reading 3 degrees. 58: DSCN2583.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:45 AM Camera Direction: Description: Temperature probe for the sample collection compartment on the composite sampler. The composite sampler is a Hach AS950. 59: DSCN2584.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:45 AM Camera Direction: Inside Description: The thermometer at the composite sampler was a NIST traceable thermometer with a calibration expiration date of April 18, 2021. 60: DSCN2585.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:55 AM Camera Direction: East Description: Signage at outfall. Appendices Page 23 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 61: DSCN2586.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 9:57 AM Camera Direction: Down, North Description: Receiving stream upstream of the outfall. Location of MP 04. 62: DSCN2587.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 10:01 AM Camera Direction: North Description: Receiving stream downstream of the outfall. Location of MP 05. 63: DSCN2588.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 10:02 AM Camera Direction: Down, East Description: Receiving stream downstream of the outfall. Location of MP 05. 64: DSCN2589.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 10:05 AM Camera Direction: Down Description: Effluent flow monitoring location. There was a primary control device in this manhole. 65: DSCN2590.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 10:17 AM Camera Direction: Down Description: Drawing of the lift station and overflow tank at Ross Avenue and Summit Street. Appendices Page 24 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 66: DSCN2591.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 10:19 AM Camera Direction: Down Description: Drawing of the lift station and overflow tank at Greenwood Drive and Collier Drive. DSCN2592.JPG Through DSCN2640.JPG Photos of the operations and maintenance manual produced by Hammontree & Associates. 67: DSCN2641.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 11:23 AM Camera Direction: Inside Description: Reagent water treatment system at laboratory. 68: DSCN2642.JPG Location: Doylestown Wastewater Treatment Plant Photographer: Jonathan Moody Date/Time: 4/16/2025 12:09 PM Camera Direction: down Description: Sign-in sheet. Appendices Page 25 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 APPENDIX C: FIELD MEASUREMENT DATA Dates and times used in this appendix are in the timezone local to the inspection site. Jonathan Moody conducted field monitoring using an In-Situ AquaTROLL 600 (AT600) S/N 1079129. The AT600 was equipped with a temperature/conductivity sensor, pH/ORP sensor, Rugged Dissolved Oxygen (RDO) sensor and a turbidity sensor. Table 1 summarizes the methods used by the AT600 sensors. Table 2 below shows the summary of the monitoring. The AT600 was calibrated on April 10, 2025 at 1:20 PM using a 3-point pH calibration with pH 4, 7, and 10 buffers. These calibrations were performed in the Region 5 office in Westlake, Ohio. The RDO sensor was calibrated using the 100% saturation method on April 15 and 16, 2025 onsite at the facility and prior to monitoring each day. The RDO sensor calibration was performed on-site just before starting the field monitoring. The turbidity and temperature sensors both have a factory calibration. Calibration information is documented in the field notebook for this compliance inspection and in the Calibration Report generated by the VuSitu App and appended to the end of this appendix. A sensor verification was conducted on the pH sensor on April 16, 2025 at 2:50 PM. The summary of the verification is included in Table 4. The pH sensor drift was within 0.1 pH SU. Table 3 summarizes the sensor verification results. Table 1 - AT600 Sensors and Methods Parameter Sensor Units pH pH/ORP SU Method SM 4500-H+/EPA 150.2 ORP Specific Conductance Temperature pH/ORP Conductivity/ Temperature Conductivity/ Temperature mV uS/cm Celsius Dissolved Oxygen Turbidity RDO Turbidity mg/L NTU-eq SM 2580 SM 2510/EPA 120.1 +/- 1,400 mV EPA 170.1 EPA-approved In-Situ Methods: 1002-8-2009, 1003-8-2009, 10048-2009 Compliant with ASTM D888-18 Method C and ISO 17289 methods ISO 7027 Appendices Page 26 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 Table 2: Summary of Field Monitoring Date/Time Ref. # Location 4/15/2025 11:09 AM 4/15/2025 11:39 AM 4/16/2025 9:42 AM 4/16/2025 9:59 4/16/2025 10:02 4/16/2025 10:09 MP-01 MP-02 MP-03 MP-04 MP-05 MP-06 Headworks, downstream of the bar screen at the location where influent compliance samples are collected Downstream end of the aeration basin Effluent compliance monitoring location for 001. Utility sink. In Silver Creek upstream of the discharge pipe outlet. In Silver Creek, downstream of the discharge pipe outlet. At the end of the chlorine contact chamber. Sp. Cond. (uS/cm) pH (SU) 1704.5 7.28 1323.7 7.19 - 6.82d - 7.69 - 7.69 - 7.57 RDO (mg/l) 6.85 6.99 11.19 13.21 12.43 10.88 Turbidity (NTU) 112.9 1586.7 4.5 0 0.1 1.79 Table 3: pH Sensor Verification Check Post- Pre- Date/Time Inspection Verification Buffer Inspection Difference2 pH pH1 4/16/2025 2:50 PM 3.96 pH 4.00 buffer verification 4.00 check -0.04 4/16/2025 2:50 PM 6.98 pH 7.00 buffer verification 7.02 check -0.04 4/16/2025 2:50 PM 10.00 pH 10.00 buffer verification check 10.05 -0.05 1. Pre-inspection pH is the post calibration pH from the pre-inspection calibration report. 2. Difference between pre-inspection and post-inspection values Appendices Page 27 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 Appendices Page 28 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 Appendices Page 29 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 Appendices Page 30 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 APPENDIX D: TABLE OF EFFLUENT EXCEEDANCES FOR THE PERIOD JANUARY 1, 2020 TO DECEMBER 31, 2024 Monitoring Period Date 3/31/2020 4/30/2020 Outfall 001-A 001-A 5/31/2020 6/30/2020 8/31/2020 9/30/2020 9/30/2020 9/30/2020 10/31/2020 10/31/2020 11/30/2020 12/31/2020 3/31/2021 3/31/2021 9/30/2021 11/30/2021 1/31/2022 2/28/2022 4/30/2022 4/30/2022 4/30/2022 4/30/2022 4/30/2022 5/31/2022 6/30/2022 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 8/31/2022 8/31/2022 9/30/2022 9/30/2022 001-A 001-A 001-A 001-A 10/31/2022 10/31/2022 10/31/2022 11/30/2022 11/30/2022 001-A 001-A 001-A 001-A 001-A Parameter Description Mercury, total low level Mercury, total low level Statistical Base Type MO AVG MO AVG E. coli, MTEC-MF Oxygen, dissolved (DO) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Solids, total suspended Solids, total suspended Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Nitrogen, ammonia total (as N) Phosphorus, total (as P) Copper, total recoverable Copper, total recoverable Cadmium, total recoverable Copper, total recoverable Copper, total recoverable Phosphorus, total (as P) Phosphorus, total (as P) WK GEOMN DAILY MN MO AVG MO AVG MO AVG WKLY MAX WKLY MAX MO AVG MO AVG WKLY MAX WKLY MAX MO AVG MO AVG MO AVG MO AVG WKLY MAX MO AVG MO AVG WKLY MAX MO AVG WKLY MAX MO AVG MO AVG WKLY MAX MO AVG WKLY MAX MO AVG MO AVG WKLY MAX MO AVG MO AVG WKLY MAX DMR Value 2.55E-05 2.66E-05 2700 4.68 1.17 2.33 1.77 2.25 2.5 1.96 1.09 1.55 2 1.5 1.26 1.16 1.08 60.4 20.9 1.5 3.4 2.6 1.8 1.09 1.11 DMR Value Unit kg/d kg/d MPN/10 0mL mg/L mg/L kg/d mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L kg/d mg/L mg/L kg/d kg/d mg/L mg/L mg/L % Excee dance 11 16 646 6 17 23 77 50 67 96 9 3 33 50 26 16 8 6 5 50 20 37 20 9 11 Days with Exceeda nces 31 30 7 1 31 30 31 30 7 31 30 30 31 7 30 30 31 30 2.55 1.01 0.0372 0.0372 mg/L mg/L mg/L mg/L 11 7 1 31 24 96 30 0.0087 mg/L 40 31 0.0507 mg/L 69 0.0507 mg/L 167 31 1.554 mg/L 55 30 1.838 mg/L 23 Appendices Page 31 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 Monitoring Period Date 11/30/2022 2/28/2023 Outfall 001-A 001-A 2/28/2023 2/28/2023 2/28/2023 2/28/2023 2/28/2023 2/28/2023 2/28/2023 2/28/2023 4/30/2023 4/30/2023 4/30/2023 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 6/30/2023 001-A 6/30/2023 6/30/2023 6/30/2023 7/31/2023 7/31/2023 8/31/2023 8/31/2023 9/30/2023 9/30/2023 9/30/2023 9/30/2023 10/31/2023 1/31/2024 1/31/2024 1/31/2024 3/31/2024 3/31/2024 3/31/2024 4/30/2024 7/31/2024 8/31/2024 8/31/2024 8/31/2024 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A 001-A Parameter Description Copper, total recoverable pH Nitrogen, ammonia total (as N) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Copper, total recoverable Copper, total recoverable Copper, total recoverable Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Nitrogen, ammonia total (as N) Nitrogen, ammonia total (as N) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Phosphorus, total (as P) Copper, total recoverable Copper, total recoverable Copper, total recoverable pH pH Copper, total recoverable Copper, total recoverable Copper, total recoverable Copper, total recoverable Copper, total recoverable pH Copper, total recoverable Solids, total suspended Solids, total suspended Phosphorus, total (as P) Statistical Base Type MO AVG DAILY MN WKLY MAX WKLY MAX WKLY MAX MO AVG MO AVG WKLY MAX MO AVG MO AVG MO AVG MO AVG WKLY MAX WKLY MAX MO AVG MO AVG WKLY MAX MO AVG WKLY MAX WKLY MAX MO AVG MO AVG MO AVG WKLY MAX MO AVG DAILY MX DAILY MN MO AVG WKLY MAX MO AVG MO AVG WKLY MAX DAILY MX MO AVG MO AVG WKLY MAX WKLY MAX DMR Value 0.028 6.44 DMR Value Unit mg/L SU 12.1 3.93 3.33 2.02 2.43 0.046 0.046 0.039 1.77 2.14 2.27 mg/L mg/L kg/d kg/d mg/L mg/L mg/L kg/d mg/L kg/d mg/L 3.11 mg/L 1.52 1.5 2.03 1.4 1.89 1.7 1.3 1.23 0.043 0.043 0.039 9.87 6.3 0.0312 0.0312 0.046 0.051 0.046 9.76 0.0275 48.4 169 11.5 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L kg/d SU SU mg/L mg/L mg/L kg/d mg/L SU mg/L kg/d kg/d kg/d % Excee dance 47 Days with Exceeda nces 30 1 34 7 162 17 6 143 28 53 142 28 8 77 30 13 51 35 1 30 50 30 35 40 31 26 13 30 31 23 30 126 30 43 8 1 1 64 31 4 142 42 31 53 1 45 31 28 31 198 305 Appendices Page 32 of 33 Facility Name: Village of Doylestown Wastewater Treatment Plan Facility Location: 135 Calaboone Road, Doylestown, 44230 Date of Inspection: April 15 and 16, 2025 Monitoring Period Date 8/31/2024 8/31/2024 8/31/2024 Outfall 001-A 001-A 001-A 10/31/2024 001-A 10/31/2024 001-A 10/31/2024 001-A 12/31/2024 001-A Parameter Description Phosphorus, total (as P) Copper, total recoverable Copper, total recoverable Nitrogen, ammonia total (as N) Nitrogen, ammonia total (as N) Nitrogen, ammonia total (as N) pH Statistical Base Type MO AVG WKLY MAX MO AVG WKLY MAX MO AVG WKLY MAX DAILY MX DMR Value 6.22 0.03186 0.03186 DMR Value Unit kg/d mg/L mg/L 11.8 kg/d 3.32 mg/L 17.7 mg/L 9.5 SU % Excee dance 227 6 68 Days with Exceeda nces 31 31 171 121 31 670 1 Appendices Page 33 of 33