ࡱ> kmj% $bjbj%% :lGG l,,,,84N@H&(Nddd555f@h@h@h@h@h@h@$/B OD@50h555@9,,dd&@9995l,dXldf@95f@99t:B<hJ,<d n7b7<<@0@<MEJ8NME<9,,,,OFFICE NO: 8 INSPECTOR: NNA PCA SYSTEM TASK NO.: 10230  8 332253001 Lee Lake Water District STP, Regional WDS No. NAME OF AGENCY OR PARTY RESPONSIBLE FOR DISCHARGE TYPE OF FACILITY CA8000010 22626 Temescal Canyon Rd Corona, Ca 92883 NPDES No. AGENCY STREET ADDRESS AGENCY CITY & ZIP 12 20 05 B1 Same Same  MM DD YY TYPE FACILITY STREET ADDRESS FACILITY CITY & ZIP 12 20 05 Ken Caldwell Same Actual Inspection AGENCY CONTACT FACILITY CONTACT Date (MMDDYY)  909-277-1414 Same AGENCY PHONE NO. FACILITY PHONE NO. S Inspection Agency (S=STATE, J=JOINT STATE/USEPA)   N If this inspection is a compliance inspection on an NPDES facility, send a copy of this report to SWRCBs Division of Water Quality, Program Support Unit INSPECTION TYPE (Check One) A1 A type compliance--Comprehensive inspection in which samples are taken. (EPA Type S) B1 X B type compliance--A routine nonsampling inspection. (EPA Type C) 02 Noncompliance follow-up--Inspection made to verify correction of a previously identified violation. 03 Enforcement follow-up--Inspection made to verify that conditions of an enforcement action are being met. 04 Complaint--Inspection made in response to a complaint. 05 Pre-requirement--Inspection made to gather info. relative to preparing, modifying, or rescinding requirements. 06 Miscellaneous--Any inspection type not mentioned above. If this is an EPA inspection not mentioned above please note type. (e.g. biomonitoring, performance audit, diagnostic, etc.)  N Were violations noted during this inspection? (Yes/No/Pending Sample Results)  N Was this a Quality Assurance-Based inspection?  N Were bioassay samples taken? (N=no) If YES then, S= Static or F= Flow through. INSPECTION SUMMARY (REQUIRED) (100-character limit) This facility is in compliance with its permit requirements at this time. INITIALS: NNA SIGNATURE: DATE:  DATE \@ "MMMM d, yyyy" \* MERGEFORMAT February 22, 2006 For Internal Use: Reviewed by: (1) (2) (3) Regional WDS Coordinator WDS Data Entry Date: -- -- Regional Board File Number:  VIOLATION (IF APPLICABLE) VIOLATION TYPE? (A-G) NA (See Pages IK05.0 and IK05.1 of the Micro Waste Discharger System Users Manual) DATE OF VIOLATION (MMDDYY):  DATE OF VIOLATION DETERMINATION (MMDDYY): DESCRIPTION OF VIOLATION (200 Character Limit): EPA SUGGESTED INSPECTION CHECKLIST SatisfactoryMarginalUnsatisfactoryNot EvaluatedNot ApplicablePermitXFlow MeasurementXPretreatmentXOperations and MaintenanceXRecords/ReportsXLaboratoriesXCompliance SchedulesXSludge DisposalXFacility Site ReviewXEffluent/Receiving WatersXSelf-MonitoringX Overall Facility Operation Evaluation  (5=Very Reliable; 3=Satisfactory; 1=Unreliable): 3 HISTORICAL INFORMATION: MOST RECENT: Order No.Adopted DatePermit TypeInspect DateInspection TypeInspection ViolationsInspection Violation TypeViolation DateR8-2002-000109/26/01NPDES 12/20/05B1N ADDITIONAL COMMENTS, SPECIAL INSTRUCTIONS, ITEMS FOR FOLLOWUP ON FUTURE INSPECTIONS, NOTES, ETC. (On following pages, if necessary) SEE ATTACHED INSPECTION NOTES. ADDITIONAL INFORMATION Report Date:  DATE \@ "MMMM d, yyyy" \* MERGEFORMAT February 22, 2006 Location & County: Temescal Canyon, Riverside County Contact(s): Ken Caldwell, Water Quality Specialist Inspection Date: 12/20/05 Inspected By: Najah N. Amin Site(s): STP Observations and Comments: An inspection was performed on December 20, 2005 to confirm permit compliance. This plant currently services about 2000 homes, and a few commercial businesses. The design capacity of this plant is 1.6 MGD and currently the inflow to the plant is about 1.3 MGD. This waste water process consists of screening, grit removal, sequencing batch reactors (activated sludge/ secondary clarification), flow equalization, flocculation, filteration, chlorination and dechlorination. Rags and other floating materials are separated by the screen bars and collected in the bin. The grit from the grit chamber is also pumped and collected in the same bin. Lime is added into the bin for odor control and every 6 months, the contents of the bin are hauled to the El Sobrante Landfill. The plant has a new washer/compactor for washing organics out of rags. Water is squeezed out to 50% moisture level. There are 5 pumps installed in two inflow wet wells. Two of the pumps pump wastewater to a grit chamber and from the grit chamber, the wastewater flows to two separate units of sequencing batch reactors (SBR). The sequencing batch reactors operate in three conditions: static fill, mixed fill, and aerated fill. During static fill, influent wastewater is added to the biomass already present in the SBR. This anaerobic process generates a high substrate (food) concentration, which is favorable to floc- forming organisms, and provides good settling characteristics for sludge. In addition, the high substrate condition is a requirement for biological phosphorus removal. At mixed fill, which occurs under anoxic conditions, micro organisms biologically degrade the organic matter and use residual oxygen or alternative electron acceptors, such as nitrate-nitrogen to convert it to nitrogen gas. At aerated fill, which occurs during the aeration process, the aerobic reactions occur and nitrification can be achieved. In this process the conversion of ammonia-nitrogen to nitrite-nitrogen and ultimately to nitrate-nitrogen will occur. There is approximately a 6-hour hydraulic retention time in the SBRs, with 3 hours aerobic treatment, and about 1hour and 40 minutes of settling, setting up an anoxic zone at the bottom of the tank for nitrogen and ammonia removal. This facility has turbidity, and coliform exceedances for the past few months, which were a result of sediment from construction sites in the area entering the sewer system. A new turbidity meter was installed on the secondary effluent flow to detect any turbidity exceedances. It will give them a buffer with which to evaluate the turbidity level before discharge, and allow adjustments to the processes before the final discharge of tertiary wastewater, which will pass by the final turbidity meter. The plant uses Wunderware software, with most tanks alarmed. The backup power generator is automated and programmed to come on during a power outage. It is tested monthly under load. The entire plant is alarmed, and all operators are on alarm pagers 24/7. The longest trip for an operator is 40 minutes, in the event of an emergency, and the plant has capacity for much more time before manual input is available. The operators all can be paged from the system, and the supervising operator has home computer access to the plant. There are 8 sand filters in the flocculation basins. 4 out of 8 total filters are in process and are also on continuous backwash. A turbidity meter at the discharge of filteration units monitors the final turbidity value before discharging to the chlorination system. The chlorine contact tanks are operating normally, with the exception of some problems with the chlorine residual analyzers. The probes are getting clouded over and yielding inaccurate readings. These probes need to be replaced. This facility uses centrifuge for drying sludge. The existing sludge drying beds will now act as backup to the centrifuge unit. The beds are concrete with sand underdrains. They send their dried sludge to Synagro (formerly Recyc Inc.), next to El Sobrante Landfill. All 3 aerobic digesters are working properly. These digesters receive waste activated sludge from Butterfield Estates, which is piped directly to Lee Lake, and from Clay Canyon, which is brought in by truck.   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