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HomeMy WebLinkAbout10-05-2018 Septic Design 9 West Division Street, Buffalo, MN 55313 • 763-682-4727 • Fax 763-682-3522 • www.ottoassociates.com October 5, 2018 Rydel Homes, Inc. Attn: Bruce Rydel 2138 Minnehaha Avenue East St. Paul, MN 55119 RE: Sewage Treatment System Site Evaluation Report on 1030 North Shore Drive West - Orono Lot 2, Block 1, ENGLUND THIRD ADDITION, Hennepin County, Minnesota Otto Job No. 18-0464 Dear Mr. Rydel: The following is a re-design for a septic system for a 5-bedroom house on the above-referenced lot using a mound system. This is only a DESIGN of the on-site septic system. Otto Associates, Inc. does not represent nor warrant the installation, operation, or proper function of this system for any period of time. No construction should begin before these plans are approved by the Building Inspection Department for the City of Orono. Please note that we have marked off the septic treatment area. It is your responsibility to protect and maintain this until after the construction is complete. Enclosed are 4 copies, 2 for the building department, 1 for your contractor, and 1 for you. If you have any questions, please call me. Sincerely, Otto Associates Engineers & Land Surveyors, Inc. Paul E. Otto, P.L.S., P.E. Minnesota On-Site License No. 3439 PEO:ch Site Evaluation Report for Rydel Homes, Inc. Page 2 Otto Job No. 18-0464 October 5, 2018 9 West Division Street, Buffalo, MN 55313 • 763-682-4727 • Fax 763-682-3522 • www.ottoassociates.com GENERAL INFORMATION: This design is for a Type 1, 5-bedroom home and is in accordance with the Minnesota Pollution Control Agency Standards and Local Ordinances. A seasonally high water table was evidenced at 13 inches of depth in Soil Borings 5A and 6A. The slope is about 7%. All neighboring wells are located more than 100 feet away from the proposed treatment area: NOTES: Keep all heavy equipment off of the proposed treatment area before and after construction as much as possible. The treatment area should be marked off before construction. With proper installation and maintenance this system should have no problem in treating septic effluent effectively. It is recommended that the septic tanks be pumped every 3 years. MOUND SYSTEM: Flow: 5 bedroom = 150 gallon/day/bedroom 150 x 5 = 750 gallons per day (GPD). 750 GPD x 1.00 = 750 square feet. 10 foot wide rock bed 75 feet long = 750 square feet. CONSTRUCTION EQUIPMENT: A rubber-tired tractor may be used for plowing or disking to prepare the soil surface, but in no case shall a rubber-tired tractor be used after the surface preparation is completed. A crawler or tract-type tractor shall be used for mound construction. SOIL SURFACE PREPARATION: The discharge pipe from the pump to the mound area shall be installed prior to soil surface preparation. The trench excavated to install the discharge pipe shall be carefully backfilled and compacted to prevent seepage of effluent. The total area selected for the mound, including that under the dikes, shall be roughened in order to thoroughly break up any existing sod layers and to provide a suitable transition zone between the original soil and sand layer of the mound. The area shall be roughened only when the moisture content of the soil 8 inches below the surface is drier than the plastic limit. Surface preparation or roughening may be performed with a mold board plow, a disk plow, or a back hoe using only the teeth. Mold board plow furrows shall be at least 8 inches deep, shall be thrown up slope and shall run perpendicular to the slope. There shall be no dead furrow under the mound. Disking may be used for surface preparation as a substitute for mold board plowing in soils having percolation rates faster than 15 minutes per inch (sandy loam) in the top 8 inch depth. Backhoe teeth may be used to roughen the soil surface and break up the sod layer. Care must be taken so as to not compact or puddle deeper soil layers. In no case shall any surface soil be excavated and removed from the area. Mound construction shall proceed immediately after surface preparation is completed. Every effort should be taken to prevent rain from falling on the prepared soil surface. Site Evaluation Report for Rydel Homes, Inc. Page 3 Otto Job No. 18-0464 October 5, 2018 9 West Division Street, Buffalo, MN 55313 • 763-682-4727 • Fax 763-682-3522 • www.ottoassociates.com CONSTRUCTION MATERIALS AND PROCEDURES: DISTRIBUTION OF EFFLUENT: A minimum of 12 inches of soil defined as sand shall be placed where the filter material is to be located. A crawler tractor with a blade or bucket shall be used to move the sand into place. At least 6 inches of sand shall be kept under the tracks to minimize compacting of the plowed layer. The sand layer upon which the filter material is placed shall be level. Sand is defined as a soil texture composed by weight of at least 25 percent of very coarse and medium same, varying in size from 2.0 to 0.25 mm, less than 50 percent of fine or very fine sand ranging in size between 0.25 and 0.05 mm, and no more than 10 percent of particles smaller than 0.05 mm. A minimum depth of 9 inches of filter material (rock) shall be placed on the sand layer prior to installing the distribution pipe. Filter material is defined as clean rock, crushed igneous rock or similar insoluble, durable and decay-resistant material free from dust, sand, silt or clay. The size shall range from ¾ inch diameter to 2½ inch diameter. PRESSURE DISTRIBUTION: In each bed, the effluent shall be distributed over the filter material by three 2 inch diameter perforated pipes under pressure 73 feet long. Perforation holes shall be ¼ inch diameter drilled in a straight line along the length of the pipe. Hole spacing shall be 36 inches with 25 perforations per lateral. Holes shall be drilled straight into the pipe and not at an angle. A sharp drill shall be used and any burrs in the inside of the pipe shall be removed. The perforated pipe laterals shall be installed level with the perforations downward. The perforated pipe laterals shall be connected to a 2 inch diameter manifold pipe and shall have their ends capped. The laterals shall be spaced 36 inches on center and at 20 inches from the edge of the filter material. The manifold pipe shall be connected to the supply pipe from the pump. The manifold shall be sloped toward the supply pipe from the pipe. Geo-textile material shall be placed over the filter material. Construction vehicles shall not be allowed on the filter material until backfill is placed. Sandy loam soil shall be placed on the filter material to a depth of 12 inches in the center of the mound and to a depth of 6 inches at the sides. Six inches of topsoil shall be placed on the fill material over the entire area of the mound. A grass cover shall be established over the entire area of the mound. No shrubs shall be planted on the top of the mound. Shrubs may be placed at the foot and side slopes of the mound. The side slopes of the mound will be 3 feet horizontal to 1 foot vertical (3:1). The soil material at the toe of the dike should be slightly less permeable or somewhat tighter than the natural soil below the mound. This can be accomplished by selecting a finer soil or by compaction. Whenever mounds are located on slopes, a diversion shall be constructed immediately up slope from the mound to intercept and divert runoff. Site Evaluation Report for Rydel Homes, Inc. Page 4 Otto Job No. 18-0464 October 5, 2018 9 West Division Street, Buffalo, MN 55313 • 763-682-4727 • Fax 763-682-3522 • www.ottoassociates.com PUMP AND COLLECTION TANK: A pump shall be used to deliver effluent to the mound. The pump shall be cast iron or bronze fitted with stainless steel screws or constructed of other sound, durable and corrosion resistant materials. The pump installed will need to deliver 56 gallons per minute with a head of at least 35 feet. An alarm device shall be installed to warn of pump failure. Install the pump control and a Meyers, Model D.L.V. Audio Visual, Lo-Voltage alarm system or approved equal in a conspicuous place at the direction of the owner. Dosing Volume=188 gallons. DRAINFIELD ROCK REQUIRED: Based on 9 inches of rock, 34 cubic yards of rock would be required. SAND REQUIRED: Approximately 292 cubic yards of clean sand for under mound is needed. NOTES: Please see Site Plan layout. PROPOSED ELEVATIONS: See Site Plan. Pr o j e c t I D : 1 8 - 0 4 6 4 v 0 4 . 0 6 . 2 0 1 7 S oi l p a r e n t m a t e r i a l ( s ) : ( C h e c k a l l t h a t a p p l y ) La n d s c a p e P o s i t i o n : ( c h e c k o n e ) Sl o p e s h a p e Ve g e t a t i o n : L4 0 B Sl o p e % : 2 - 6 El e v a t i o n : Da t e Sh a p e G r a d e 0- 1 0 L o a m < 1 0 7 . 5 Y R 3 - 1 ** * * G r a n u l a r M o d e r a t e 10 - 1 5 C l a y L o a m < 1 0 1 0 Y R 4 - 3 ** * * G r a n u l a r W e a k 15 - 1 8 C l a y < 1 0 1 0 Y R 4 - 4 1 0 Y R 6 - 1 De p l e t i o n s S 1 Pl a t y We a k Co m m e n t s : 15 " C r e w C h i e f : I h e r e b y c e r t i f y t h a t I h a v e c o m p l e t e d t h i s w o r k i n a c c o r d a n c e w i t h a l l a p p l i c a b l e o r d i n a n c e s , r u l e s a n d l a w s . (L i c e n s e # ) VV OS T P S o i l O b s e r v a t i o n L o g Cl i e n t / A d d r e s s : Ry d e l H o m e s , I n c . Le g a l D e s c r i p t i o n / G P S : Lo t 2 , B l o c k 1 , E N G L U N D T H I R D A D D I T I O N , H en n e p i n C o u n t y , M i n n e s o t a Wo o d s S o i l s u r v e y m a p u n i t s : 1037.42 We a t h e r C o n d i t i o n s / T i m e o f D a y : Cl o u d y 10/01/18 Firm Ob s e r v a t i o n # / L o c a t i o n : So i l B o r i n g 1 A Ob s e r v a t i o n T y p e : Auger De p t h ( i n ) T e x t u r e Ro c k Fr a g . % Ma t r i x C o l o r ( s ) M o t t l e C o l o r ( s ) R e d o x K i n d ( s ) I n d i c a t o r ( s ) I- - - - - - - - S t r u c t u r e - - - - - - - - - - - I Consistence Friable Friable 10/4/2018 (D e s i g n e r / I n s p e c t o r ) (S i g n a t u r e ) (Date) Li m i t i n g C o n d i t i o n s a t : Troy Becker **** Pa u l E . O t t o , P . L . S . , P . E . 34 3 9 Ou t w a s h La c u s t r i n e Lo e s s Ti l l Al l u v i u m Be d r o c k Organic Matter Su m m i t Sh o u l d e r Ba c k / S i d e S l o p e Fo o t S l o p e To e S l o p e Pr o j e c t I D : 1 8 - 0 4 6 4 v 0 4 . 0 6 . 2 0 1 7 S oi l p a r e n t m a t e r i a l ( s ) : ( C h e c k a l l t h a t a p p l y ) La n d s c a p e P o s i t i o n : ( c h e c k o n e ) Sl o p e s h a p e Ve g e t a t i o n : L4 0 B Sl o p e % : 2 - 6 El e v a t i o n : Da t e Sh a p e G r a d e 0- 1 3 L o a m < 1 0 1 0 Y R 3 - 2 ** * * G r a n u l a r M o d e r a t e 13 - 1 8 C l a y L o a m < 1 0 1 0 Y R 3 - 3 ** * * G r a n u l a r W e a k 18 - 2 1 C l a y < 1 0 1 0 Y R 4 - 4 1 0 Y R 6 - 2 De p l e t i o n s S 1 Pl a t y We a k Co m m e n t s : 18 " C r e w C h i e f : I h e r e b y c e r t i f y t h a t I h a v e c o m p l e t e d t h i s w o r k i n a c c o r d a n c e w i t h a l l a p p l i c a b l e o r d i n a n c e s , r u l e s a n d l a w s . (L i c e n s e # ) VV OS T P S o i l O b s e r v a t i o n L o g Cl i e n t / A d d r e s s : Ry d e l H o m e s , I n c . Le g a l D e s c r i p t i o n / G P S : Lo t 2 , B l o c k 1 , E N G L U N D T H I R D A D D I T I O N , H en n e p i n C o u n t y , M i n n e s o t a Wo o d s S o i l s u r v e y m a p u n i t s : 1037.33 We a t h e r C o n d i t i o n s / T i m e o f D a y : Cl o u d y 10/01/18 Ob s e r v a t i o n # / L o c a t i o n : So i l B o r i n g 2 A Ob s e r v a t i o n T y p e : Auger De p t h ( i n ) T e x t u r e Ro c k Fr a g . % Ma t r i x C o l o r ( s ) M o t t l e C o l o r ( s ) R e d o x K i n d ( s ) Li m i t i n g C o n d i t i o n s a t : Troy Becker In d i c a t o r ( s ) I- - - - - - - - S t r u c t u r e - - - - - - - - - - - I Consistence ** Friable ** Friable Firm Pa u l E . O t t o , P . L . S . , P . E . 34 3 9 1 0 / 4 / 2 0 1 8 (D e s i g n e r / I n s p e c t o r ) (S i g n a t u r e ) (Date) Ou t w a s h La c u s t r i n e Lo e s s Ti l l Al l u v i u m Be d r o c k Organic Matter Su m m i t Sh o u l d e r Ba c k / S i d e S l o p e Fo o t S l o p e To e S l o p e Pr o j e c t I D : 1 8 - 0 4 6 4 v 0 4 . 0 6 . 2 0 1 7 S oi l p a r e n t m a t e r i a l ( s ) : ( C h e c k a l l t h a t a p p l y ) La n d s c a p e P o s i t i o n : ( c h e c k o n e ) Sl o p e s h a p e Ve g e t a t i o n : L4 0 B Sl o p e % : 2 - 6 El e v a t i o n : Da t e Sh a p e G r a d e 0- 1 3 L o a m < 1 0 1 0 Y R 3 - 2 ** * * G r a n u l a r M o d e r a t e 13 - 1 5 C l a y < 1 0 1 0 Y R 4 - 4 ** * * P l a t y W e a k 15 - 1 8 C l a y < 1 0 1 0 Y R 4 - 4 1 0 Y R 6 - 2 De p l e t i o n s S 1 Pl a t y We a k Co m m e n t s : 15 " C r e w C h i e f : I h e r e b y c e r t i f y t h a t I h a v e c o m p l e t e d t h i s w o r k i n a c c o r d a n c e w i t h a l l a p p l i c a b l e o r d i n a n c e s , r u l e s a n d l a w s . (L i c e n s e # ) VV OS T P S o i l O b s e r v a t i o n L o g Cl i e n t / A d d r e s s : Ry d e l H o m e s , I n c . Le g a l D e s c r i p t i o n / G P S : Lo t 2 , B l o c k 1 , E N G L U N D T H I R D A D D I T I O N , H en n e p i n C o u n t y , M i n n e s o t a Wo o d s S o i l s u r v e y m a p u n i t s : 1036.82 We a t h e r C o n d i t i o n s / T i m e o f D a y : Cl o u d y 10/01/18 Ob s e r v a t i o n # / L o c a t i o n : So i l B o r i n g 3 A Ob s e r v a t i o n T y p e : Auger De p t h ( i n ) T e x t u r e Ro c k Fr a g . % Ma t r i x C o l o r ( s ) M o t t l e C o l o r ( s ) R e d o x K i n d ( s ) Li m i t i n g C o n d i t i o n s a t : Troy Becker In d i c a t o r ( s ) I- - - - - - - - S t r u c t u r e - - - - - - - - - - - I Consistence ** Friable ** Firm Firm Pa u l E . O t t o , P . L . S . , P . E . 34 3 9 1 0 / 4 / 2 0 1 8 (D e s i g n e r / I n s p e c t o r ) (S i g n a t u r e ) (Date) Ou t w a s h La c u s t r i n e Lo e s s Ti l l Al l u v i u m Be d r o c k Organic Matter Su m m i t Sh o u l d e r Ba c k / S i d e S l o p e Fo o t S l o p e To e S l o p e Pr o j e c t I D : 1 8 - 0 4 6 4 v 0 4 . 0 6 . 2 0 1 7 S oi l p a r e n t m a t e r i a l ( s ) : ( C h e c k a l l t h a t a p p l y ) La n d s c a p e P o s i t i o n : ( c h e c k o n e ) Sl o p e s h a p e Ve g e t a t i o n : L4 0 B Sl o p e % : 2 - 6 El e v a t i o n : Da t e Sh a p e G r a d e 0- 1 3 L o a m < 1 0 1 0 Y R 3 - 2 ** * * G r a n u l a r M o d e r a t e 13 - 1 5 C l a y < 1 0 1 0 Y R 4 - 4 ** * * P l a t y W e a k 15 - 1 8 C l a y < 1 0 1 0 Y R 4 - 4 2. 5 Y R 10 Y R 4- 6 6- 2 Co n c e n t r a t i o n s De p l e t i o n s S1 P l a t y W e a k Co m m e n t s : 15 " C r e w C h i e f : I h e r e b y c e r t i f y t h a t I h a v e c o m p l e t e d t h i s w o r k i n a c c o r d a n c e w i t h a l l a p p l i c a b l e o r d i n a n c e s , r u l e s a n d l a w s . (L i c e n s e # ) VV OS T P S o i l O b s e r v a t i o n L o g Cl i e n t / A d d r e s s : Ry d e l H o m e s , I n c . Le g a l D e s c r i p t i o n / G P S : Lo t 2 , B l o c k 1 , E N G L U N D T H I R D A D D I T I O N , H en n e p i n C o u n t y , M i n n e s o t a Wo o d s S o i l s u r v e y m a p u n i t s : 1039.31 We a t h e r C o n d i t i o n s / T i m e o f D a y : Cl o u d y 10/01/18 Ob s e r v a t i o n # / L o c a t i o n : So i l B o r i n g 4 A Ob s e r v a t i o n T y p e : Auger De p t h ( i n ) T e x t u r e Ro c k Fr a g . % Ma t r i x C o l o r ( s ) M o t t l e C o l o r ( s ) R e d o x K i n d ( s ) Li m i t i n g C o n d i t i o n s a t : Troy Becker In d i c a t o r ( s ) I- - - - - - - - S t r u c t u r e - - - - - - - - - - - I Consistence ** Friable ** Firm Firm Pa u l E . O t t o , P . L . S . , P . E . 34 3 9 1 0 / 4 / 2 0 1 8 (D e s i g n e r / I n s p e c t o r ) (S i g n a t u r e ) (Date) Ou t w a s h La c u s t r i n e Lo e s s Ti l l Al l u v i u m Be d r o c k Organic Matter Su m m i t Sh o u l d e r Ba c k / S i d e S l o p e Fo o t S l o p e To e S l o p e Pr o j e c t I D : 1 8 - 0 4 6 4 v 0 4 . 0 6 . 2 0 1 7 S oi l p a r e n t m a t e r i a l ( s ) : ( C h e c k a l l t h a t a p p l y ) La n d s c a p e P o s i t i o n : ( c h e c k o n e ) Sl o p e s h a p e Ve g e t a t i o n : L4 0 B Sl o p e % : 2 - 6 El e v a t i o n : Da t e Sh a p e G r a d e 0- 8 L o a m < 1 0 1 0 Y R 3 - 2 ** * * G r a n u l a r M o d e r a t e 8- 1 0 C l a y L o a m < 1 0 1 0 Y R 3 - 3 ** * * G r a n u l a r W e a k 10 - 1 3 C l a y < 1 0 1 0 Y R 4 - 4 ** * * P l a t y W e a k 13 - 1 5 C l a y < 1 0 1 0 Y R 4 - 4 2. 5 Y R 10 Y R 4- 6 6- 2 Co n c e n t r a t i o n s De p l e t i o n s S1 P l a t y W e a k Co m m e n t s : 13 " C r e w C h i e f : I h e r e b y c e r t i f y t h a t I h a v e c o m p l e t e d t h i s w o r k i n a c c o r d a n c e w i t h a l l a p p l i c a b l e o r d i n a n c e s , r u l e s a n d l a w s . (L i c e n s e # ) VV OS T P S o i l O b s e r v a t i o n L o g Cl i e n t / A d d r e s s : Ry d e l H o m e s , I n c . Le g a l D e s c r i p t i o n / G P S : Lo t 2 , B l o c k 1 , E N G L U N D T H I R D A D D I T I O N , H en n e p i n C o u n t y , M i n n e s o t a Wo o d s S o i l s u r v e y m a p u n i t s : 1039.44 We a t h e r C o n d i t i o n s / T i m e o f D a y : Cl o u d y 10/01/18 Ob s e r v a t i o n # / L o c a t i o n : So i l B o r i n g 5 A Ob s e r v a t i o n T y p e : Auger De p t h ( i n ) T e x t u r e Ro c k Fr a g . % Ma t r i x C o l o r ( s ) M o t t l e C o l o r ( s ) R e d o x K i n d ( s ) Li m i t i n g C o n d i t i o n s a t : Troy Becker ** In d i c a t o r ( s ) I- - - - - - - - S t r u c t u r e - - - - - - - - - - - I Consistence ** Friable ** Friable Firm Firm Pa u l E . O t t o , P . L . S . , P . E . 34 3 9 1 0 / 4 / 2 0 1 8 (D e s i g n e r / I n s p e c t o r ) (S i g n a t u r e ) (Date) Ou t w a s h La c u s t r i n e Lo e s s Ti l l Al l u v i u m Be d r o c k Organic Matter Su m m i t Sh o u l d e r Ba c k / S i d e S l o p e Fo o t S l o p e To e S l o p e Pr o j e c t I D : 1 8 - 0 4 6 4 v 0 4 . 0 6 . 2 0 1 7 S oi l p a r e n t m a t e r i a l ( s ) : ( C h e c k a l l t h a t a p p l y ) La n d s c a p e P o s i t i o n : ( c h e c k o n e ) Sl o p e s h a p e Ve g e t a t i o n : L4 0 B Sl o p e % : 2 - 6 El e v a t i o n : Da t e Sh a p e G r a d e 0- 8 L o a m < 1 0 1 0 Y R 3 - 2 ** * * G r a n u l a r M o d e r a t e 8- 1 3 C l a y L o a m < 1 0 1 0 Y R 4 - 4 ** * * G r a n u l a r W e a k 13 - 1 5 C l a y < 1 0 1 0 Y R 4 - 6 2 . 5 Y R 4 - 6 C o n c e n t r a t i o n s S 1 Pl a t y We a k Co m m e n t s : 13 " C r e w C h i e f : I h e r e b y c e r t i f y t h a t I h a v e c o m p l e t e d t h i s w o r k i n a c c o r d a n c e w i t h a l l a p p l i c a b l e o r d i n a n c e s , r u l e s a n d l a w s . (L i c e n s e # ) VV OS T P S o i l O b s e r v a t i o n L o g Cl i e n t / A d d r e s s : Ry d e l H o m e s , I n c . Le g a l D e s c r i p t i o n / G P S : Lo t 2 , B l o c k 1 , E N G L U N D T H I R D A D D I T I O N , H en n e p i n C o u n t y , M i n n e s o t a Wo o d s S o i l s u r v e y m a p u n i t s : 1041.77 We a t h e r C o n d i t i o n s / T i m e o f D a y : Cl o u d y 10/01/18 Ob s e r v a t i o n # / L o c a t i o n : So i l B o r i n g 6 A Ob s e r v a t i o n T y p e : Auger De p t h ( i n ) T e x t u r e Ro c k Fr a g . % Ma t r i x C o l o r ( s ) M o t t l e C o l o r ( s ) R e d o x K i n d ( s ) Li m i t i n g C o n d i t i o n s a t : Troy Becker In d i c a t o r ( s ) I- - - - - - - - S t r u c t u r e - - - - - - - - - - - I Consistence ** Friable ** Friable Firm Pa u l E . O t t o , P . L . S . , P . E . 34 3 9 1 0 / 4 / 2 0 1 8 (D e s i g n e r / I n s p e c t o r ) (S i g n a t u r e ) (Date) Ou t w a s h La c u s t r i n e Lo e s s Ti l l Al l u v i u m Be d r o c k Organic Matter Su m m i t Sh o u l d e r Ba c k / S i d e S l o p e Fo o t S l o p e To e S l o p e Te x t u r e s : Su b s o i l I n d i c a t o r ( s ) o f S a t u r a t i o n : c- c l a y S1 . D i s t i n c t g r a y o r r e d r e d o x f e a t u r e s Lo o s e - In t a c t s p e c i m e n n o t a v a i l a b l e si c - s i l t y c l a y S2 . D e p l e t e d m a t r i x ( v a l u e > / = 4 a n d c h r o m a < / = 2 ) Fr i a b l e - Sl i g h t f o r c e b e t w e e n f i n g e r s sc - s a n d y c l a y S3 . 5 Y c h r o m a < / = 3 Fi r m - Mo d e r a t e f o r c e b e t w e e n f i n g e r s cl - c l a y l o a m S4 . 7 . 5 Y R o r r e d d e r f a i n t r e d o x c o n c e n t r a t i o n s o r r e d o x d e p l e t i o n s Ex t r e m e l y fi r m - si c l - s i l t y c l a y l o a m Ri g i d - Fo o t p r e s s u r e sc l - s a n d y c l a y l o a m Sl o p e S h a p e : si - s i l t si l - s i l t l o a m l- l o a m sl - s a n d y l o a m * ls - l o a m y s a n d * s- s a n d * Gr a d e : Ma s s i v e - No o b s e r v a b l e a g g r e g a t e s , o r n o o r d e r l y a r r a n g e m e n t o f n a t u r a l l i n e s o f w e a k n e s s We a k - Po o r l y f o r m e d , i n d i s t i n c t p e d s , b a r e l y o b s e r v a b l e i n p l a c e Mo d e r a t e - Lo o s e - So i l S t r u c t u r e Sh a p e : Gr a n u l a r - Pl a t y - Bl o c k y - Pr i s m a t i c - Si n g l e G r a i n - Th e s t r u c t u r e f o u n d i n a s a n d y s o i l . T h e i n d i v i d u a l p a r t i c l e s a r e n o t h e l d t o g e t h e r . T1 . W e t l a n d V e g e t a t i o n Sl o p e s h a p e i s d e s c r i b e d i n t w o d i r e c t i o n s : u p a n d d o w n s l o p e (p e r p e n d i c u l a r t o t h e c o n t o u r ) , a n d a c r o s s s l o p e ( a l o n g t h e ho r i z o n t a l c o n t o u r ) ; e . g . L i n e a r , C o n v e x o r L V ' . Co n s i s t e n c e : Mo d e r a t e f o r c e b e t w e e n h a n d s o r s l i g h t fo o t p r e s s u r e If y e s t o o n e o f t h e a b o v e i n d i c a t o r s t h e n : To p s o i l I n d i c a t o r ( s ) o f S a t u r a t i o n : We l l f o r m e d , d i s t i n c t p e d s , m o d e r a t e l y d u r a b l e a n d e v i d e n t , b u t n o t d i s t i n c t i n u n d i s t u r b e d *S a n d M o d i f i e r s T2 . D e p r e s s i o n a l L a n d s c a p e co - c o a r s e T 3 . O r g a n i c t e x t u r e o r o r g a n i c m o d i f i e r s m- m e d i u m T 4 . N 2 . 5 / 0 c o l o r f- f i n e T5 . R e d o x f e a t u r e s i n t o p s o i l vf - v e r y f i n e T 6 . H y d r a u l i c i n d i c a t o r s So i l S t r u c t u r e Th e p e d s a r e b l o c k - l i k e o r p o l y h e d r a l , a n d a r e b o u n d e d b y f l a t o r s l i g h t l y r o u n d e d s u r f a c e t h a t a r e c a s t i n g o f t h e f a c e s o f s u r r o u n d i n g p e d s . Fl a t o r s l i g h t l y r o u n d e d v e r t i c a l f a c e s b o u n d t h e i n d i v i d u a l p e d s . P e d s a r e d i s t i n c t l y l o n g e r v e r t i c a l l y , a n d f a c e s a r e t y p i c a l l y c a s t o r m o l d s o f St r o n g - Du r a b l e p e d s t h a t a r e q u i t e e v i d e n t i n u n - d i s p l a c e d s o i l , a d h e r e w e a k l y t o o n e a n o t h e r , wi t h s t a n d d i s p l a c e m e n t , a n d b e c o m e s e p a r a t e d w h e n s o i l i s d i s t u r b e d No p e d s , s a n d y s o i l Th e p e d s a r e a p p r o x i m a t e l y s p h e r i c a l o r p o l y h e d r a l a n d a r e c o m m o n l y f o u n d i n t o p s o i l . T h e s e a r e t h e s m a l l , r o u n d e d p e d s t h a t h a n g o n t o r o o t s Th e p e d s a r e f l a t a n d p l a t e l i k e . T h e y a r e o r i e n t e d h o r i z o n t a l l y a n d a r e u s u a l l y o v e r l a p p i n g . P l a t y s t r u c t u r e i s c o m m o n l y f o u n d i n f o r e s t e d a r e a s - 1 - Septic System Management Plan for Above Grade Systems The goal of a septic system is to protect human health and the environment by properly treating wastewater before returning it to the environment. Your septic system is designed to kill harmful organisms and remove pollutants before the water is recycled back into our lakes, streams and groundwater. This management plan will identify the operation and maintenance activities necessary to ensure long- term performance of your septic system. Some of these activities must be performed by you, the homeowner. Other tasks must be performed by a licensed septic maintainer or service provider. However, it is YOUR responsibility to make sure all tasks get accomplished in a timely manner. The University of Minnesota’s Septic System Owner’s Guide contains additional tips and recommendations designed to extend the effective life of your system and save you money over time. Proper septic system design, installation, operation and maintenance means safe and clean water! Property Owner Email Property Address Property ID System Designer Contact Info System Installer Contact Info Service Provider/Maintainer Contact Info Permitting Authority Contact Info Permit # Date Inspected Keep this Management Plan with your Septic System Owner’s Guide. The Septic System Owner’s Guide includes a folder to hold maintenance records including pumping, inspection and evaluation reports. Ask your septic professional to also: • Attach permit information, designer drawings and as-built of your system, if they are available. • Keep copies of all pumping records and other maintenance and repair invoices with this document. • Review this document with your maintenance professional at each visit; discuss any changes in product use, activities, or water-use appliances. For a copy of the Septic System Owner’s Guide, visit www.bookstores.umn.edu and search for the word “septic” or call 800-322-8642. For more information see http://septic.umn.edu Version: August 2015 Septic System Management Plan for Above Grade Systems - 2 - Your Septic System Septic System Specifics System Type: I II III IV* V* (Based on MN Rules Chapter 7080.2200 – 2400) *Additional Management Plan required  System is subject to operating permit*  System uses UV disinfection unit* Type of advanced treatment unit ______________ Dwelling Type Well Construction Number of bedrooms: ______________________ System capacity/ design flow (gpd): __________ Anticipated average daily flow (gpd): __________ Comments________________________________ Business? : Y N What type? _______________ Well depth (ft): __________________________  Cased well Casing depth: ___________  Other (specify): ___________________ Distance from septic (ft):____________________ Is the well on the design drawing? Y N Septic Tank  First tank Tank volume: ________ gallons Does tank have two compartments? Y N  Second tank Tank volume: ________ gallons  Tank is constructed of __________________  Effluent screen: Y N Alarm Y N  Pump Tank _________ gallons  Effluent Pump make/model:_______________ Pump capacity ___________ GPM TDH _________ Feet of head  Alarm location _________________________ Soil Treatment Area (STA) Mound/At-Grade area (width x length):____ ft x ____ ft Rock bed size (width x length): _____ ft x _____ ft Location of additional STA: _______________________ Type of distribution media: _______________________  Inspection ports  Cleanouts  Surface water diversions  Additional STA not available Septic System Management Plan for Above Grade Systems - 3 - Homeowner Management Tasks These operation and maintenance activities are your responsibility. Chart on page 6 can help track your activities. Your toilet is not a garbage can. Do not flush anything besides human waste and toilet paper. No wet wipes, cigarette butts, disposal diapers, used medicine, feminine products or other trash! The system and septic tanks needs to be checked every _____ months Your service provider or pumper/maintainer should evaluate if your tank needs to be pumped more or less often. Seasonally or several times per year • Leaks. Check (listen, look) for leaks in toilets and dripping faucets. Repair leaks promptly. • Soil treatment area. Regularly check for wet or spongy soil around your soil treatment area. If surfaced sewage or strong odors are not corrected by pumping the tank or fixing broken caps and leaks, call your service professional. Untreated sewage may make humans and animals sick. Keep bikes, snowmobiles and other traffic off and control borrowing animals. • Alarms. Alarms signal when there is a problem; contact your service professional any time the alarm signals. • Lint filter. If you have a lint filter, check for lint buildup and clean when necessary. If you do not have one, consider adding one after washing machine. • Effluent screen. If you do not have one, consider having one installed the next time the tank is cleaned along with an alarm. Annually • Water usage rate. A water meter or another device can be used to monitor your average daily water use. Compare your water usage rate to the design flow of your system (listed on the next page). Contact your septic professional if your average daily flow over the course of a month exceeds 70% of the design flow for your system. • Caps. Make sure that all caps and lids are intact and in place. Inspect for damaged caps at least every fall. Fix or replace damaged caps before winter to help prevent freezing issues. • Water conditioning devices. See Page 5 for a list of devices. When possible, program the recharge frequency based on water demand (gallons) rather than time (days). Recharging too frequently may negatively impact your septic system. Consider updating to demand operation if your system currently uses time, • Review your water usage rate. Review the Water Use Appliance chart on Page 5. Discuss any major changes with your service provider or pumper/maintainer. During each visit by a service provider or pumper/maintainer • Make sure that your service professional services the tank through the manhole. (NOT though a 4” or 6” diameter inspection port.) • Ask how full your tank was with sludge and scum to determine if your service interval is appropriate. • Ask your pumper/maintainer to accomplish the tasks listed on the Professional Tasks on Page 4. Septic System Management Plan for Above Grade Systems - 4 - Professional Management Tasks These are the operation and maintenance activities that a pumper/maintainer performs to help ensure long- term performance of your system. At each visit a written report/record must be provided to homeowner. Plumbing/Source of Wastewater • Review the Water Use Appliance Chart on Page 5 with homeowner. Discuss any changes in water use and the impact those changes may have on the septic system. • Review water usage rates (if available) with homeowner. Septic Tank/Pump Tanks • Manhole lid. A riser is recommended if the lid is not accessible from the ground surface. Insulate the riser cover for frost protection. • Liquid level. Check to make sure the tank is not leaking. The liquid level should be level with the bottom of the outlet pipe. (If the water level is below the bottom of the outlet pipe, the tank may not be watertight. If the water level is higher than the bottom of the outlet pipe of the tank, the effluent screen may need cleaning, or there may be ponding in the soil treatment area.) • Inspection pipes. Replace damaged or missing pipes and caps. • Baffles. Check to make sure they are in place and attached, and that inlet/outlet baffles are clear of buildup or obstructions. • Effluent screen. Check to make sure it is in place; clean per manufacturer recommendation. Recommend retrofitted installation if one is not present. • Alarm. Verify that the alarm works. • Scum and sludge. Measure scum and sludge in each compartment of each septic and pump tank, pump if needed. Pump • Pump and controls. Check to make sure the pump and controls are operating correctly. • Pump vault. Check to make sure it is in place; clean per manufacturer recommendations. • Alarm. Verify that the alarm works. • Drainback. Check to make sure it is draining properly. • Event counter or elapsed time meter. Check to see if there is an event counter or elapsed time meter for the pump. If there is one or both, calculate the water usage rate and compare to the anticipated use listed on Design and Page 2. Dose Volume: __________ gallons: Pump run time: _________ Minutes Soil Treatment Area • Inspection pipes. Check to make sure they are properly capped. Replace caps and pipes that are damaged. • Surfacing of effluent. Check for surfacing effluent or other signs of problems. • Lateral flushing. Check lateral distribution; if cleanouts exist, flush and clean at recommended frequency. • Vegetation - Check to see that a good growth of vegetation is covering the system. All other components – evaluate as listed here: ____________________________________________ ____________________________________________________________________________________ Septic System Management Plan for Above Grade Systems - 5 - Water-Use Appliances and Equipment in the Home Appliance Impacts on System Management Tips Garbage disposal • Uses additional water. • Adds solids to the tank. • Finely-ground solids may not settle. Unsettled solids can exit the tank and enter the soil treatment area. • Use of a garbage disposal is not recommended. • Minimize garbage disposal use. Compost instead. • To prevent solids from exiting the tank, have your tank pumped more frequently. • Add an effluent screen to your tank. Washing machine • Washing several loads on one day uses a lot of water and may overload your system. • Overloading your system may prevent solids from settling out in the tank. Unsettled solids can exit the tank and enter the soil treatment area. • Choose a front-loader or water-saving top-loader, these units use less water than older models. • Limit the addition of extra solids to your tank by using liquid or easily biodegradable detergents. Limit use of bleach-based detergents and fabric softeners. • Install a lint filter after the washer and an effluent screen to your tank • Wash only full loads and think even – spread your laundry loads throughout the week. Dishwasher • Powdered and/or high-phosphorus detergents can negatively impact the performance of your tank and soil treatment area. • New models promote “no scraping”. They have a garbage disposal inside. • Use gel detergents. Powdered detergents may add solids to the tank. • Use detergents that are low or no-phosphorus. • Wash only full loads. • Scrape your dishes anyways to keep undigested solids out of your septic system. Grinder pump (in home) • Finely-ground solids may not settle. Unsettled solids can exit the tank and enter the soil treatment area. • Expand septic tank capacity by a factor of 1.5. • Include pump monitoring in your maintenance schedule to ensure that it is working properly. • Add an effluent screen. Large bathtub (whirlpool) • Large volume of water may overload your system. • Heavy use of bath oils and soaps can impact biological activity in your tank and soil treatment area. • Avoid using other water-use appliances at the same time. For example, don’t wash clothes and take a bath at the same time. • Use oils, soaps, and cleaners in the bath or shower sparingly. Clean Water Uses Impacts on System Management Tips High-efficiency furnace • Drip may result in frozen pipes during cold weather. • Re-route water directly out of the house. Do not route furnace discharge to your septic system. Water softener Iron filter Reverse osmosis • Salt in recharge water may affect system performance. • Recharge water may hydraulically overload the system. • These sources produce water that is not sewage and should not go into your septic system. • Reroute water from these sources to another outlet, such as a dry well, draintile or old drainfield. • When replacing, consider using a demand-based recharge vs. a time-based recharge. • Check valves to ensure proper operation; have unit serviced per manufacturer directions Surface drainage Footing drains • Water from these sources will overload the system and is prohibited from entering septic system. Septic System Management Plan for Above Grade Systems - 6 - Homeowner Maintenance Log Track maintenance activities here for easy reference. See list of management tasks on pages 3 and 4. Activity Date accomplished Check frequently: Leaks: check for plumbing leaks* Soil treatment area check for surfacing** Lint filter: check, clean if needed* Effluent screen (if owner-maintained)*** Alarm** Check annually: Water usage rate (maximum gpd _____) Caps: inspect, replace if needed Water use appliances – review use Other: *Monthly **Quarterly ***Bi-Annually Notes: ________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ “As the owner of this SSTS, I understand it is my responsibility to properly operate and maintain the sewage treatment system on this property, utilizing the Management Plan. If requirements in this Management Plan are not met, I will promptly notify the permitting authority and take necessary corrective actions. If I have a new system, I agree to adequately protect the reserve area for future use as a soil treatment system.” Property Owner Signature: Date Management Plan Prepared By: Certification # Permitting Authority: ©2015 Regents of the University of Minnesota. All rights reserved. The University of Minnesota is an equal opportunity educator and employer. This material is available in alternative formats upon request. Contact the Water Resources Center, 612-624-9282. The Onsite Sewage Treatment Program is delivered by the University of Minnesota Extension Service and the University of Minnesota Water Resources Center. CO. RD NO. 19 2 1 1 0 - 1 - 1 8 R y d e l H o m e s , I n c . S . O . S . 1 " = 2 0 ' P . E . O . I her e b y c e r t i f y t h a t t h i s s u r v e y , p l a n , o r repor t w a s p r e p a r e d b y m e o r u n d e r m y direc t s u p e r v i s i o n a n d t h a t I a m a d u l y Licen s e d L a n d S u r v e y o r u n d e r t h e l a w s of th e S t a t e o f M i n n e s o t a . ____ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Paul E . O t t o Licen s e # 4 0 0 6 2 D a t e : _ _ _ _ _ _ _ _ _ _ _ _ _ C e r t i f i c a t e o f S u r v e y a n d T o p o g r a p h i c S u r v e y Revised: P r o j e c t N o . C h e c k e d B y : S c a l e : D r a w n B y : D a t e : R e q u e s t e d B y : d e n o t e s 1 / 2 i n c h b y 1 4 i n c h i r o n p i p e s e t a n d m a r k e d b y L i c e n s e # 4 0 0 6 2 d e n o t e s i r o n m o n u m e n t f o u n d E n g i n e e r s & L a n d S u r v e y o r s , I n c . 9 W e s t D i v i s i o n S t r e e t B u f f a l o , M N 5 5 3 1 3 ( 7 6 3 ) 6 8 2 - 4 7 2 7 F a x : ( 7 6 3 ) 6 8 2 - 3 5 2 2 w w w . o t t o a s s o c i a t e s . c o m N F e e t 0 2 0 4 0