**DRILLING LOG DOCUMENTATION**

  ------------ ----------------- -------- ------------------ ------ -------------------
  Cooperator                     County                      Date   

  ------------ ----------------- -------- ------------------ ------ -------------------

  ---------- ------------------ ---------- --------------------- ------ -----------
  Practice                      Cons.                            Hole   
                                District                         No.    

  ---------- ------------------ ---------- --------------------- ------ -----------

  ------ ----- ------- ---- ------- ---- -- ---- ----- ---- --- ---- --- ---- -- ------ -------
  Farm         Tract        Field                Sec        T        R           Soil   
                                                                                 Name   

  ------ ----- ------- ---- ------- ---- -- ---- ----- ---- --- ---- --- ---- -- ------ -------

  -------------- ---------- ------ ------- --------- --------- ---------- --------------
  Investigator              Hole           Sampled             Drilling   
                            El.                                Location   

  -------------- ---------- ------ ------- --------- --------- ---------- --------------

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**Location In Section** (x)

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  **N**                                           
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+----+--------+------+-------+------+----+-------+------------------+
| *  |        |      |       |      |    |       |                  |
| *D |        |      |       |      |    |       |                  |
| es |        |      |       |      |    |       |                  |
| cr |        |      |       |      |    |       |                  |
| ip |        |      |       |      |    |       |                  |
| ti |        |      |       |      |    |       |                  |
| on |        |      |       |      |    |       |                  |
| of |        |      |       |      |    |       |                  |
| Ma |        |      |       |      |    |       |                  |
| te |        |      |       |      |    |       |                  |
| ri |        |      |       |      |    |       |                  |
| al |        |      |       |      |    |       |                  |
| ** |        |      |       |      |    |       |                  |
+----+--------+------+-------+------+----+-------+------------------+
| *  | **Mu   | **US | *     | **   | *  | *     | **Other:**       |
| *D | nsel** | DA** | *Unif | Geol | *W | *Perm |                  |
| ep |        |      | ied** | ogic | T: | eabil | (Concretions,    |
| th | **C    | **T  |       | al** | ** | ity** | Stratification,  |
| ** | olor** | extu | **C   |      |    |       |                  |
|    |        | re** | lassi | **Ma |    | **G   | Moisture         |
| ** |        |      | ficat | teri |    | roup^ | Content, etc.)   |
| fe |        |      | ion** | al** |    | \*^** |                  |
| et |        |      |       |      |    |       |                  |
| ** |        |      |       | **(  |    |       |                  |
|    |        |      |       | Oxid |    |       |                  |
|    |        |      |       | ized |    |       |                  |
|    |        |      |       | ?)** |    |       |                  |
+----+--------+------+-------+------+----+-------+------------------+
|    |        |      |       |      |    |       |                  |
+----+--------+------+-------+------+----+-------+------------------+
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+----+--------+------+-------+------+----+-------+------------------+
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+----+--------+------+-------+------+----+-------+------------------+

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  **Notes:**

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+-----------------------------+---+----+--------+----+------+-------+
| **Unified Symbols and Group | * |    |        |    |      |       |
| Names**                     | * |    |        |    |      |       |
|                             | A |    |        |    |      |       |
|                             | g |    |        |    |      |       |
|                             | r |    |        |    |      |       |
|                             | i |    |        |    |      |       |
|                             | c |    |        |    |      |       |
|                             | u |    |        |    |      |       |
|                             | l |    |        |    |      |       |
|                             | t |    |        |    |      |       |
|                             | u |    |        |    |      |       |
|                             | r |    |        |    |      |       |
|                             | a |    |        |    |      |       |
|                             | l |    |        |    |      |       |
|                             | W |    |        |    |      |       |
|                             | a |    |        |    |      |       |
|                             | s |    |        |    |      |       |
|                             | t |    |        |    |      |       |
|                             | e |    |        |    |      |       |
|                             | M |    |        |    |      |       |
|                             | a |    |        |    |      |       |
|                             | n |    |        |    |      |       |
|                             | a |    |        |    |      |       |
|                             | g |    |        |    |      |       |
|                             | e |    |        |    |      |       |
|                             | m |    |        |    |      |       |
|                             | e |    |        |    |      |       |
|                             | n |    |        |    |      |       |
|                             | t |    |        |    |      |       |
|                             | F |    |        |    |      |       |
|                             | i |    |        |    |      |       |
|                             | e |    |        |    |      |       |
|                             | l |    |        |    |      |       |
|                             | d |    |        |    |      |       |
|                             | H |    |        |    |      |       |
|                             | a |    |        |    |      |       |
|                             | n |    |        |    |      |       |
|                             | d |    |        |    |      |       |
|                             | b |    |        |    |      |       |
|                             | o |    |        |    |      |       |
|                             | o |    |        |    |      |       |
|                             | k |    |        |    |      |       |
|                             | , |    |        |    |      |       |
|                             | C |    |        |    |      |       |
|                             | h |    |        |    |      |       |
|                             | a |    |        |    |      |       |
|                             | p |    |        |    |      |       |
|                             | t |    |        |    |      |       |
|                             | e |    |        |    |      |       |
|                             | r |    |        |    |      |       |
|                             | 1 |    |        |    |      |       |
|                             | 0 |    |        |    |      |       |
|                             | * |    |        |    |      |       |
|                             | * |    |        |    |      |       |
+-----------------------------+---+----+--------+----+------+-------+
| **GW** = Well graded        | * |    |        | *  |      |       |
| gravel, gravel-sand mix,    | * |    |        | *T |      |       |
| few fines                   | T |    |        | ab |      |       |
|                             | a |    |        | le |      |       |
| **GP** = Poorly graded      | b |    |        | 1  |      |       |
| gravel, gravel-sand mix,    | l |    |        | 0D |      |       |
| few fines                   | e |    |        | -2 |      |       |
|                             | 1 |    |        | ** |      |       |
| **GC** = Clayey gravel,     | 0 |    |        |    |      |       |
| gravel-sand-clay mix        | D |    |        |    |      |       |
|                             | - |    |        |    |      |       |
| **GM** = Silty gravel,      | 3 |    |        |    |      |       |
| gravel-sand-silt mix        | * |    |        |    |      |       |
|                             | * |    |        |    |      |       |
| **SW** = Well graded sand,  | ( |    |        |    |      |       |
| gravely sand with few fines | 1 |    |        |    |      |       |
|                             | 1 |    |        |    |      |       |
| **SP** = Poorly graded      | 6 |    |        |    |      |       |
| sand, gravely sand with few | 1 |    |        |    |      |       |
| fines                       | t |    |        |    |      |       |
|                             | e |    |        |    |      |       |
| **SC** = Clayey sand,       | s |    |        |    |      |       |
| sand-clay mix               | t |    |        |    |      |       |
|                             | r |    |        |    |      |       |
| **SM** = Silty sand,        | e |    |        |    |      |       |
| sand-silt mix               | s |    |        |    |      |       |
|                             | u |    |        |    |      |       |
| **CL** = Lean inorganic     | l |    |        |    |      |       |
| clay, low to medium plastic | t |    |        |    |      |       |
| LL \< 50                    | s |    |        |    |      |       |
|                             | ) |    |        |    |      |       |
| **CH** = Fat inorganic      |   |    |        |    |      |       |
| clay, gravely/sandy/silty   |   |    |        |    |      |       |
| clay LL \> 50               |   |    |        |    |      |       |
|                             |   |    |        |    |      |       |
| **CL-ML** = Silty Clay      |   |    |        |    |      |       |
|                             |   |    |        |    |      |       |
| **OL** = Organic silts and  |   |    |        |    |      |       |
| organic silty clays, low    |   |    |        |    |      |       |
| plasticity                  |   |    |        |    |      |       |
|                             |   |    |        |    |      |       |
| **OH** = Organic silt/clay, |   |    |        |    |      |       |
| medium to high plasticity   |   |    |        |    |      |       |
|                             |   |    |        |    |      |       |
| **ML** = Inorganic silt,    |   |    |        |    |      |       |
| very fine sand, low plastic |   |    |        |    |      |       |
| LL \< 50                    |   |    |        |    |      |       |
|                             |   |    |        |    |      |       |
| **MH** = Inorganic silt,    |   |    |        |    |      |       |
| fine sand or silty soils LL |   |    |        |    |      |       |
| \> 50                       |   |    |        |    |      |       |
+-----------------------------+---+----+--------+----+------+-------+
|                             | S | Me | Median | U  | Perm | In    |
|                             | o | di |        | ni | G    | Perm  |
|                             | i | an | K,     | fi | roup |       |
|                             | l |    | ft/d   | ed |      | Group |
|                             |   | K, |        |    | I II |       |
|                             | G | cm |        | C  | III  |       |
|                             | r | /s |        | la | IV   |       |
|                             | o |    |        | ss |      |       |
|                             | u |    |        |    |      |       |
|                             | p |    |        |    |      |       |
+-----------------------------+---+----+--------+----+------+-------+
|                             | I | 7. | 2.0    | CH | N N  | A=A   |
|                             | \ | 2x |        |    | S U  | lways |
|                             | I | 10 | 1.0    | MH |      |       |
|                             |   | -4 |        |    | N S  | N=    |
|                             | I |    | 0.014  | CL | U S  | Never |
|                             | I | 3. |        |    |      |       |
|                             | \ | 5x | 0.004  | ML | N S  | S     |
|                             | I | 10 |        |    | U S  | =Some |
|                             | I | -4 | 0.0025 | C  |      | times |
|                             |   |    |        | L- | N U  |       |
|                             | I | 4. | 0.0006 | ML | S N  | U=Us  |
|                             | I | 8x |        |    |      | ually |
|                             | I | 10 | 0.0014 | GC | N A  |       |
|                             | \ | -6 |        |    | N N  |       |
|                             | I |    | 0.0001 | GM |      |       |
|                             | I | 1. |        |    | N S  |       |
|                             | I | 5x |        | GW | U S  |       |
|                             |   | 10 |        |    |      |       |
|                             | I | -6 |        | SM | S U  |       |
|                             | V |    |        |    | S S  |       |
|                             | \ | 8. |        | SC |      |       |
|                             | I | 8x |        |    | A N  |       |
|                             | V | 10 |        | SW | N N  |       |
|                             |   | -7 |        |    |      |       |
|                             |   |    |        | SP | S S  |       |
|                             |   | 2. |        |    | S S  |       |
|                             |   | 1x |        | GP |      |       |
|                             |   | 10 |        |    | N N  |       |
|                             |   | -7 |        |    | U S  |       |
|                             |   |    |        |    |      |       |
|                             |   | 4. |        |    | A N  |       |
|                             |   | 9x |        |    | N N  |       |
|                             |   | 10 |        |    |      |       |
|                             |   | -7 |        |    | A N  |       |
|                             |   |    |        |    | N N  |       |
|                             |   | 3. |        |    |      |       |
|                             |   | 5x |        |    | A N  |       |
|                             |   | 10 |        |    | N N  |       |
|                             |   | -8 |        |    |      |       |
+-----------------------------+---+----+--------+----+------+-------+

![](media/image1.jpeg){width="10.0in" height="6.111111111111111in"}

![](media/image2.jpeg){width="10.01388888888889in"
height="6.736111111111111in"}

**DESIGN OF SMALL DAMS (1973, page 137)**

![](media/image3.jpeg){width="9.989583333333334in"
height="5.749305555555556in"}

<table>
<colgroup>
<col style="width: 6%" />
<col style="width: 2%" />
<col style="width: 12%" />
<col style="width: 6%" />
<col style="width: 1%" />
<col style="width: 10%" />
<col style="width: 6%" />
<col style="width: 14%" />
<col style="width: 1%" />
<col style="width: 2%" />
<col style="width: 15%" />
<col style="width: 17%" />
</colgroup>
<tbody>
<tr class="odd">
<td colspan="8"><strong>SOIL COLOR</strong></td>
<td></td>
<td colspan="3"><strong>PERMEABILITY</strong></td>
</tr>
<tr class="even">
<td colspan="2"></td>
<td colspan="2"></td>
<td></td>
<td></td>
<td colspan="2"></td>
<td></td>
<td colspan="2"><strong>Inches per hour</strong></td>
<td><strong>Class</strong></td>
</tr>
<tr class="odd">
<td colspan="2"><p>3/3</p>
<p>3/4,3/6,4/4</p>
<p>4/1</p>
<p>4/2</p>
<p>4/3,5/3</p>
<p>5/1,6/1</p>
<p>5/2</p>
<p>5/4,5/6,5/8</p>
<p>6/2</p>
<p>6/3</p>
<p>6/4</p>
<p>6/6,6/8</p></td>
<td colspan="2"><p>Dark Brown</p>
<p>Dark Yellowish Brown</p>
<p>Dark Gray</p>
<p>Dark Grayish Brown</p>
<p>Brown</p>
<p>Gray</p>
<p>Grayish Brown</p>
<p>Yellowish Brown</p>
<p>Light Brownish Gray</p>
<p>Pale Brown</p>
<p>Light Yellowish Brown</p>
<p>Brownish Yellow</p></td>
<td></td>
<td><p>4/2</p>
<p>4/3,4/4</p>
<p>N4/</p>
<p>5/2</p>
<p>5/3,5/4,5/6</p>
<p>5/3,5/4,5/6</p>
<p>6/1</p>
<p>6/2</p>
<p>6/3,6/4</p>
<p>6/6,6/8</p></td>
<td colspan="2"><p>Dark Grayish Brown</p>
<p>Olive Brown</p>
<p>Dark Gray</p>
<p>Grayish Brown</p>
<p>Light Olive Brown</p>
<p>Light Olive Brown</p>
<p>Dark Grayish Brown</p>
<p>Light Brownish Gray</p>
<p>Light Yellowish Brown</p>
<p>Olive Yellow</p></td>
<td></td>
<td colspan="2"><p>0.01 to 0.06</p>
<p>0.06 to 0.2</p>
<p>0.2 to 0.6</p>
<p>0.6 to 2.0</p>
<p>2.0 to 6.0</p>
<p>6.0 to 20.</p>
<p>20. to 60.</p></td>
<td><p>Very slow</p>
<p>Slow</p>
<p>Moderately slow</p>
<p>Moderate</p>
<p>Moderately rapid</p>
<p>Rapid</p>
<p>Very Rapid</p></td>
</tr>
<tr class="even">
<td colspan="6"><strong>MAJOR DIVISIONS</strong></td>
<td><p><strong>UNIFIED</strong></p>
<p><strong>SYMBOL</strong></p></td>
<td colspan="3"><strong>TYPICAL DESCRIPTIONS</strong></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td rowspan="7"><p>Coarse</p>
<p>Grained</p>
<p>Soils</p>
<p>More than 50% of materials are larger than #200 sieve</p></td>
<td colspan="2" rowspan="3"><p>Gravel and</p>
<p>Gravely Soils</p>
<p>More than 50% of coarse fraction retained on # 4 sieve.</p></td>
<td colspan="3"><p>Clean Gravels</p>
<p>(little or no fines)</p></td>
<td><strong>GW</strong></td>
<td colspan="3">Well graded gravels, gravel-sand mixtures, little or no
fines</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td colspan="3" rowspan="2"><p>Gravels with Fines</p>
<p>(appreciable amount of fines)</p></td>
<td><strong>GP</strong></td>
<td colspan="3">Poorly-graded gravels, gravel-sand mixtures, little or
no fines</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td><strong>GM</strong></td>
<td colspan="3"><p>Silty gravels,</p>
<p>gravel-sand-silt mixtures</p></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td colspan="2" rowspan="4"><p>Sand and</p>
<p>Sandy Soils</p>
<p>More than 50% of coarse fraction passing # 4 sieve.</p></td>
<td colspan="3" rowspan="2"><p>Clean Sand</p>
<p>(little or no fines)</p></td>
<td><strong>GC</strong></td>
<td colspan="3"><p>Clayey gravels, gravel-sand-clay</p>
<p>Mixtures</p></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td><strong>SW</strong></td>
<td colspan="3"><p>Well-graded sands, gravely sands</p>
<p>little or no fines</p></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td colspan="3" rowspan="2"><p>Sands with Fines</p>
<p>(appreciable amount of fines)</p></td>
<td><strong>SP</strong></td>
<td colspan="3"><p>Poorly-graded sands, gravely sands,</p>
<p>little or no fines</p></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td><strong>SM</strong></td>
<td colspan="3">Silty-sands, sand-silt mixtures</td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td rowspan="6"><p>Fine</p>
<p>Grained</p>
<p>Soils</p>
<p>More than 50% of materials are smaller than #200 sieve</p></td>
<td colspan="5" rowspan="3">Silts and Clays - Liquid limit less than
50</td>
<td><strong>SC</strong></td>
<td colspan="3">Clayey sands, sand-clay mixtures</td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td><strong>ML</strong></td>
<td colspan="3"><p>Inorganic silts, very fine sands,</p>
<p>rock flour, silty or clayey fine sands</p>
<p>or clayey silts with slight plasticity</p></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td><strong>CL</strong></td>
<td colspan="3"><p>Inorganic clays of low to medium plasticity, gravely
clays, sandy clays,</p>
<p>silty clays, lean clays</p></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td colspan="5" rowspan="3">Silts and Clays - Liquid limit greater than
50</td>
<td><strong>OL</strong></td>
<td colspan="3"><p>Organic silts and organic silty clays</p>
<p>of low plasticity</p></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td><strong>MH</strong></td>
<td colspan="3"><p>Inorganic silts, micaceous or</p>
<p>dutomacecous fine sand or siltly</p>
<p>soils</p></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td><strong>CH</strong></td>
<td colspan="3"><p>Inorganic clays of high plasticity,</p>
<p>fat clays</p></td>
<td colspan="2"></td>
</tr>
<tr class="even">
<td colspan="6">Highly Organic Soils</td>
<td><strong>OH</strong></td>
<td colspan="3"><p>Organic clays of medium to high</p>
<p>plasticity, organic silts</p></td>
<td colspan="2"></td>
</tr>
</tbody>
</table>