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SITE USE/BACKGROUND: EXISTING 3 BEDROOM DWELLING, ADDITION OF A 2 BEDROOM ACCESSORY DWELLING UNIT IS PROPOSED. WASTEWATER TREATMENT TRAIN: DOMESTIC RAW SEWAGE -> AEROBIC TREATMENT UNIT -> DOSING PUMP TANK -> PRESSURE DOSED SHALLOW LEACH LINES GENERAL INSTALLATION NOTES: 11655 S UNION ROAD 1. OWTS SHALL BE INSTALLED IN ACCORDANCE WITH THE ENGINEER-OF-RECORDS'S DESIGN INTENT AND REGULATORY AGENCY REQUIREMENTS. DISCREPANCIES EXISTING 3 BEDROOM DWELLING REPORTED LOCATION OF EXISTING SEPTIC SYSTEM SMALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER-OF-RECORD AT THE EARLIEST OPPORTUNITY. ACCORDING TO APPLICATION FOR SANITATION PERMIT NO. 10296 ISSUED 11/10/58 2. OWTS TO BE INSTALLED BY A LICENSED CONTRACTOR WITH AT LEAST THREE YEARS EXPERIENCE INSTALLING SIMILAR OWTS. NOT VERIFIED BY ACORN ONSITE, INC. 3. INSTALLATION OF OWTS SHALL NOT BEGIN PRIOR TO APPROVAL OF THIS PLAN AND ISSUANCE OF AN INSTALLATION PERMIT FROM THE SANTA CLARA - - COUNTY DEPARTMENT OF ENVIRONMENTAL HEALTH.. 4. INSTALLER SHALL FIELD VERIFY ALL EXISTING UTILITIES INCLUDING INSTALLER MUST NOTIFY UNDERGROUND SERVICE ALERT (CALL 811) AT LEAST TWO WORKING DAYS, NOT INCLUDING THE DATE OF NOTIFICATION, PRIOR TO EXCAVATION. 5. INSTALLATION OBSERVATION INSPECTION BY ENGINEER-OF-RECORD REQUIRED. JOINT OBSERVATION BY THE ENGINEER-OF-RECORD INSTALLER AND DEH MAY BE REQUIRED. INSTALLER SHALL COORDINATE OBSERVATION VISITS WITH EACH APPROPRIATE PARTY: 5.1. PRECONSTRUCTION CONSTRUCTION STAKING OF THE VARIOUS SYSTEM COMPONENTS IS PROVIDED AND CONSTRUCTION PROCEDURES DISCUSSED. (ALL COMPONENT LOCATIONS MARKED IN FIELD DISPERSAL FIELD LAYOUT TO BE DONE BY ENGINEER-OF-RECORD OR LAND SURVEYOR INSTALLER SHALL �X, ; .�, . , . , . . . .��,��.�, PROVIDE A CONSTRUCTION SCHEDULE AND GENERAL PROCEDURE FOR INSTALLATION) 5.2. WATER TIGHTNESS OF ATU 5.3. LAYOUT AND EXCAVATION OF DISPERSAL TRENCHES AND PIPING (INCLUDING OPEN TRENCH OBSERVATION AND GRAVEL SAMPLE) 5.4. DRAIN ROCK MATERIAL CLEANLINESS AND PLACEMENT IN TRENCHES. 5.5. ALL PIPE 5.6. FINAL BACKFILL AND COVER 6. INSTALLER SHALL PROVIDE SUBMITTAL PACKAGE FOR REVIEW AND APPROVAL BY ENGINEER-OF-RECORD PRIOR COMMENCING INSTALLATION. 1 1 7. INSTALLER SHALL PROMPTLY NOTIFY ENGINEER-OR-RECORD OF ANY DISCREPANCIES FOUND OR DISCOVERY OF DIFFERING SITE CONDITIONS FROM THOSE 1 I 1 I NOTED. 1 1 8. DISPERSAL FIELDS SHALL NOT BE INSTALLED IN OVERLY MOIST SOIL. 1 1 9. DISPERSAL FIELD EXCAVATIONS SHALL NOT BE LEFT UNCOVERED DURING ANY RAIN EVENT OR FOR AN EXTENDED PERIOD OF TIME. I I GENERAL MAINTENANCE NOTES: 1. ANNUAL SERVICE SHALL INCLUDE: ANNUAL SERVICE OF ATU AS RECOMMENDED BY ATU MANUFACTURER AND MONITOR GENERAL SITE CONDITIONS IN I 1 WELL DISPERSAL FIELDS VICINITY TO VERIFY SERVICEABILITY OF SITE, AND RESPOND TO CONDITIONS FOUND. 1 1 1 1 GENERAL LONG TERM USE NOTES: 1 / + / 1. IN ACCEPTING THE DESIGN, THE OWNER REALIZES THAT EXPANSION OF THE DISPERSAL FIELD MAY BE REQUIRED IF LIQUID LOADING IS NOT DISPOSED OF BY \ / THE PROPOSED DISPERSAL FIELD. � \\ // ` 2. EVERY EFFORT SHOULD BE MADE TO MINIMIZE LIQUID LOADING ON THE OWTS. o / 3. LOW FLOW PLUMIING FIXTURES ARE REQUIRED. Z / 4. OTHER THAN EARTHWORK OF THE OWTS, NO FILL SHALL BE PLACED OVER THE DISPERSAL FIELD AREA. :D i� , 5. NO EXCAVATION OR CUTTING SOIL SHALL OCCUR DOWNSLOPE OF DISPERSAL FIELD, CONTACT ENGINEER-OF-RECORD FOR APPROPRIATE SETBACK V) \�� 50' WELL SETBACK �� REQUIREMENTS. 6. NO VEHICULAR TRAFFIC OR OTHER ACTIVITIES THAT WILL COMPACT SOIL ARE PERMITTED IN DISPERSAL FIELD AREA. 7. ROOF DOWNSPOUTS SHALL NOT DRAIN INTO OWTS OR OVER OWTS. 1 ------�------__ 10' BUILDING SETBACK - r------------- ------------------------� GENERAL CONDITIONS: -----_--, NEW ATU 1 1. THIS DOCUMENT AND ASSOCIATED REPORTS ARE AN INSTRUMENT OF PROFESSIONAL SERVICE DESCRIBING THE SITE CONDITIONS AND DESIGN FOR THE NORWECO SINGULAR ; I INSTALLATION OF THE OWTS DESCRIBED. 4" SCH 40 PVC SEWER PIPE \\ i i 1 2. ANY USE OF THIS DOCUMENT AND ASSOCIATED REPORTS BEYOND THE INSTALLATION OF THE OWTS DESCRIBED IS NOT THE INTENDED PURPOSED OF THE 1 i i I DOCUMENT, IS NOT AUTHORIZED BY ACORN ONSITE, INC., AND IS DONE AT THAT PERSON OR ENTITY'S OWN RISK. RESERVE AREA I 1 + 3. THIS DOCUMENT IS NOT A BOUNDARY SURVEY, ANY PROPERTY DELINEATION OR REFERENCE TO A PROPERTY DELINEATION IS WORK OF OTHERS PROVIDED BY I , I THE PROPERTY OWNER TO ACORN ONSITE INC. I O i it 1 O L----------------------------------------------------j I I I 5' SEPTIC TANK SETBACK l I I 1 I f I 1 ---------- I NEW DISTRIBUTION BOX ---' 11668 S UNION ROAD PERCOLATION TEST BY OTHERS - ' ' 5' PROPERTY LINE SETBACK NEW LEACH FIELD NEW 2 BEDROOM DWELLING 4" SCH 40 PVC EFFLUENT TRANSPORT PIPE PROPERTY LINE ACCORDING TO PROPERTY OWNER -- LEACH FIELD SIZING: �� SOIL CONDIT4ONS ASSUMPTIONS BASED ON SOIL INVESTIGATION BY OTHERS PRESENTED IN A REPORT TO ACORN ONSITE, INC. ALL i� 50' WELL SETBACK �� SIZING IS BASED ON THE SOIL INVESTIGATION BY OTHERS AND SAN JUAQUIN COUNTY ENVIRONMENTAL HEALTH OWTS MANUAL TABLE 9.7.1, PRIMARY LEACH FIELD: / 2 BEDROOMS EQUATES TO 160 LF TOTAL ACCORDING TO SAN / \ JUOQUIN COUNTY OWTS MANUAL TABLE 9.7.1, BASED ON SOIL INVESTIGATION BY OTHERS APPEARS REASONABLE SIZING. / NEIGHBOR WELL ACCORDING TO PERMIT NO. 45-457 ISSUED 6-19-75 RESERVE AREA: 1 DUPLICATE AREA AVAILABLE 1 1 I 1 I I THE OWTS TREATMENT TRAIN INCLUDES AN AEROBIC TREATMENT UNIT WITH NITROGEN REDUCTION, THE PROPOSED ATU MEETS NSF 245 TESTING SHOWING AT LEAST 50% REDUCTION. I � 1 i� 50' WELL SETBACK 11 NEIGHBOR WELL I I 1 I I I I 1 1 1 1 � s OWTS PLAN D 10 20 40 60 11668 S UNION ROAD MANTECA CALIFORNIA CD Scale 1" = 20 ft PROPERTY OWNER: APN= : MOISES CHAVEZ 204-030-07 11668 S UNION ROAD SCALE: MANTECA CA 95336 1 " = 20' Q?,4FESS1aN FO ql CONTOUR INTERVAL: NDERGROUND SERVICE ALERT �`�� o� ys�. �� ACN NONE Lu R CALL TOLL FREE Na. 66172 DATE 1-800-642-2444 OR 811 * * ONSITE lnc.M JUNE 28, 2021 AT LEAST TWO WORKING DAYS BEFORE YOU DIG Cl1� �� PROJECT NO. qT Fp`� THIS IS NOT A BOUNDARY SURVEY. PROPERTY LINES SHOWN FROM SITE MAP PROVIDED BY PROPERTY OWNER. uNOER�Ro��o SERVICE APRT of NOR�ERN CALIFORNIA F a�- c��l ACORN ONSITE, INC. 210770920 THIS PLAN ONLY ADDRESSES THE NEW OWTS COMPONENTS AS SHOWN, ALL OTHER SITE INFORMATION IS FROM SITE 2288 BUENA VISTA AVENUE, UVERMORE, CALIFORNIA 94550 PLAN PROVIDED BY PROPERTY OWNER. (925) 447-5200 FAX (925) 447-0919 www.AcornOnsite.com SHEET NO. SEPTIC SYSTEM ENGINEERING 1 OF 2