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	<title>Regions:Chad/Guéra/Bitkine/Water points - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://aowis.org/index.php?action=history&amp;feed=atom&amp;title=Regions%3AChad%2FGu%C3%A9ra%2FBitkine%2FWater_points"/>
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	<updated>2026-10-23T07:18:26Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://aowis.org/index.php?title=Regions:Chad/Gu%C3%A9ra/Bitkine/Water_points&amp;diff=750&amp;oldid=prev</id>
		<title>Samuel at 22:56, 20 September 2026</title>
		<link rel="alternate" type="text/html" href="https://aowis.org/index.php?title=Regions:Chad/Gu%C3%A9ra/Bitkine/Water_points&amp;diff=750&amp;oldid=prev"/>
		<updated>2026-09-20T22:56:37Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw-interface=&quot;&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:56, 20 September 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{DISPLAYTITLE:Water points around Bitkine}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{AI-Generated | tool = ChatGPT | date = 2026-09-21 | scope = full page }}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{AI-Generated | tool = ChatGPT | date = 2026-09-21 | scope = full page }}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{DISPLAYTITLE:Water points around Bitkine}}&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This page documents &amp;#039;&amp;#039;&amp;#039;actual known wells, boreholes and other water sources&amp;#039;&amp;#039;&amp;#039; around [[Regions:Chad/Guéra/Bitkine|Bitkine]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This page documents &amp;#039;&amp;#039;&amp;#039;actual known wells, boreholes and other water sources&amp;#039;&amp;#039;&amp;#039; around [[Regions:Chad/Guéra/Bitkine|Bitkine]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Samuel</name></author>
	</entry>
	<entry>
		<id>https://aowis.org/index.php?title=Regions:Chad/Gu%C3%A9ra/Bitkine/Water_points&amp;diff=749&amp;oldid=prev</id>
		<title>Samuel: Created page with &quot;{{AI-Generated | tool = ChatGPT | date = 2026-09-21 | scope = full page }}  {{DISPLAYTITLE:Water points around Bitkine}}  This page documents &#039;&#039;&#039;actual known wells, boreholes and other water sources&#039;&#039;&#039; around Bitkine.  It is intended as a field inventory. Geological interpretation and proposed future drilling locations are documented separately under Groundwater prospecting.  Water-po...&quot;</title>
		<link rel="alternate" type="text/html" href="https://aowis.org/index.php?title=Regions:Chad/Gu%C3%A9ra/Bitkine/Water_points&amp;diff=749&amp;oldid=prev"/>
		<updated>2026-09-20T22:56:13Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{AI-Generated | tool = ChatGPT | date = 2026-09-21 | scope = full page }}  {{DISPLAYTITLE:Water points around Bitkine}}  This page documents &amp;#039;&amp;#039;&amp;#039;actual known wells, boreholes and other water sources&amp;#039;&amp;#039;&amp;#039; around &lt;a href=&quot;/index.php/Regions:Chad/Gu%C3%A9ra/Bitkine&quot; title=&quot;Regions:Chad/Guéra/Bitkine&quot;&gt;Bitkine&lt;/a&gt;.  It is intended as a field inventory. Geological interpretation and proposed future drilling locations are documented separately under &lt;a href=&quot;/index.php/Regions:Chad/Gu%C3%A9ra/Bitkine/Groundwater_prospecting&quot; title=&quot;Regions:Chad/Guéra/Bitkine/Groundwater prospecting&quot;&gt;Groundwater prospecting&lt;/a&gt;.  Water-po...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{AI-Generated | tool = ChatGPT | date = 2026-09-21 | scope = full page }}&lt;br /&gt;
&lt;br /&gt;
{{DISPLAYTITLE:Water points around Bitkine}}&lt;br /&gt;
&lt;br /&gt;
This page documents &amp;#039;&amp;#039;&amp;#039;actual known wells, boreholes and other water sources&amp;#039;&amp;#039;&amp;#039; around [[Regions:Chad/Guéra/Bitkine|Bitkine]].&lt;br /&gt;
&lt;br /&gt;
It is intended as a field inventory. Geological interpretation and proposed future drilling locations are documented separately under [[Regions:Chad/Guéra/Bitkine/Groundwater_prospecting|Groundwater prospecting]].&lt;br /&gt;
&lt;br /&gt;
Water-point information should distinguish clearly between:&lt;br /&gt;
&lt;br /&gt;
* measured values;&lt;br /&gt;
* information reported by owners or operators;&lt;br /&gt;
* approximate or historical values;&lt;br /&gt;
* observations that still require confirmation.&lt;br /&gt;
&lt;br /&gt;
== Inventory ==&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable sortable&amp;quot;&lt;br /&gt;
! Name&lt;br /&gt;
! Type&lt;br /&gt;
! Location&lt;br /&gt;
! Depth&lt;br /&gt;
! Yield&lt;br /&gt;
! Water quality&lt;br /&gt;
! EC&lt;br /&gt;
! Current use&lt;br /&gt;
! Status&lt;br /&gt;
|-&lt;br /&gt;
| Restaurant Complex&lt;br /&gt;
| Borehole / well&lt;br /&gt;
| &amp;#039;&amp;#039;coordinates to add&amp;#039;&amp;#039;&lt;br /&gt;
| &amp;#039;&amp;#039;unknown&amp;#039;&amp;#039;&lt;br /&gt;
| ~3 m³/h during March–June&lt;br /&gt;
| &amp;#039;&amp;#039;to confirm&amp;#039;&amp;#039;&lt;br /&gt;
| &amp;#039;&amp;#039;not yet measured&amp;#039;&amp;#039;&lt;br /&gt;
| Local use&lt;br /&gt;
| Existing&lt;br /&gt;
|-&lt;br /&gt;
| Djaborona Church&lt;br /&gt;
| Borehole / well&lt;br /&gt;
| &amp;#039;&amp;#039;coordinates to add&amp;#039;&amp;#039;&lt;br /&gt;
| &amp;#039;&amp;#039;unknown&amp;#039;&amp;#039;&lt;br /&gt;
| ~2 m³/h during March–June&lt;br /&gt;
| &amp;#039;&amp;#039;to confirm&amp;#039;&amp;#039;&lt;br /&gt;
| &amp;#039;&amp;#039;not yet measured&amp;#039;&amp;#039;&lt;br /&gt;
| Local use&lt;br /&gt;
| Existing&lt;br /&gt;
|-&lt;br /&gt;
| Elie Tchere&lt;br /&gt;
| Borehole / well&lt;br /&gt;
| &amp;#039;&amp;#039;coordinates to add&amp;#039;&amp;#039;&lt;br /&gt;
| &amp;#039;&amp;#039;unknown&amp;#039;&amp;#039;&lt;br /&gt;
| ~3 m³/h during March–June&lt;br /&gt;
| &amp;#039;&amp;#039;to confirm&amp;#039;&amp;#039;&lt;br /&gt;
| &amp;#039;&amp;#039;not yet measured&amp;#039;&amp;#039;&lt;br /&gt;
| Local use&lt;br /&gt;
| Existing&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
The reported yields above are field information and should be replaced or supplemented by measured pumping-test data where available.&lt;br /&gt;
&lt;br /&gt;
Additional known water points should be added as their location and ownership are confirmed.&lt;br /&gt;
&lt;br /&gt;
== Water quality ==&lt;br /&gt;
&lt;br /&gt;
Local observations indicate that both potable and noticeably saline groundwater occur around Bitkine.&lt;br /&gt;
&lt;br /&gt;
At present, water described as &amp;#039;&amp;#039;salty&amp;#039;&amp;#039; is primarily a field description. The actual hydrochemical type has not yet been established for most local sources.&lt;br /&gt;
&lt;br /&gt;
Electrical conductivity should therefore be measured for every accessible water point.&lt;br /&gt;
&lt;br /&gt;
A minimal field record should include:&lt;br /&gt;
&lt;br /&gt;
* electrical conductivity (µS/cm);&lt;br /&gt;
* temperature;&lt;br /&gt;
* pH;&lt;br /&gt;
* pumping rate;&lt;br /&gt;
* duration of pumping before sampling;&lt;br /&gt;
* taste or other field observations;&lt;br /&gt;
* current use of the water.&lt;br /&gt;
&lt;br /&gt;
For selected representative wells, laboratory analysis should include:&lt;br /&gt;
&lt;br /&gt;
* sodium;&lt;br /&gt;
* potassium;&lt;br /&gt;
* calcium;&lt;br /&gt;
* magnesium;&lt;br /&gt;
* chloride;&lt;br /&gt;
* sulfate;&lt;br /&gt;
* bicarbonate / alkalinity;&lt;br /&gt;
* nitrate;&lt;br /&gt;
* fluoride;&lt;br /&gt;
* iron;&lt;br /&gt;
* manganese;&lt;br /&gt;
* microbiological parameters.&lt;br /&gt;
&lt;br /&gt;
Different dissolved salts do not necessarily produce the same taste. A water described as salty may be dominated by sodium chloride, sodium bicarbonate, calcium or magnesium salts, or a mixture of several major ions.&lt;br /&gt;
&lt;br /&gt;
== Electrical conductivity ==&lt;br /&gt;
&lt;br /&gt;
Electrical conductivity is one of the most useful rapid measurements for comparing local groundwater.&lt;br /&gt;
&lt;br /&gt;
Conductivity is recorded in &amp;#039;&amp;#039;&amp;#039;microsiemens per centimetre (µS/cm)&amp;#039;&amp;#039;&amp;#039; and provides an indication of the total concentration of dissolved ions.&lt;br /&gt;
&lt;br /&gt;
Repeated measurements are preferable to a single value, particularly in fractured-rock boreholes.&lt;br /&gt;
&lt;br /&gt;
A useful pumping record is:&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Time&lt;br /&gt;
! Pumping rate&lt;br /&gt;
! Water level&lt;br /&gt;
! EC&lt;br /&gt;
! Temperature&lt;br /&gt;
! pH&lt;br /&gt;
! Notes&lt;br /&gt;
|-&lt;br /&gt;
| Before pumping&lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
|-&lt;br /&gt;
| 5 min&lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
|-&lt;br /&gt;
| 15 min&lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
|-&lt;br /&gt;
| 30 min&lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
|-&lt;br /&gt;
| 1 h&lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
|-&lt;br /&gt;
| 2 h&lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
|-&lt;br /&gt;
| 4 h&lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
|-&lt;br /&gt;
| 8 h&lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
Changes in EC during pumping can indicate changing contributions from different fractures.&lt;br /&gt;
&lt;br /&gt;
A decreasing EC may indicate displacement of stagnant or more mineralised water by a fresher source.&lt;br /&gt;
&lt;br /&gt;
An increasing EC may indicate that continued drawdown is recruiting a more mineralised fracture or groundwater body.&lt;br /&gt;
&lt;br /&gt;
Such interpretations require repeated measurements and should not be inferred from taste alone.&lt;br /&gt;
&lt;br /&gt;
== Seasonal behaviour ==&lt;br /&gt;
&lt;br /&gt;
Water-point yield should be recorded throughout the year.&lt;br /&gt;
&lt;br /&gt;
The late dry season is particularly important because a well that performs well shortly after the rainy season may provide substantially less water several months later.&lt;br /&gt;
&lt;br /&gt;
For each important water point, useful seasonal observations include:&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Date&lt;br /&gt;
! Season&lt;br /&gt;
! Static water level&lt;br /&gt;
! Pumping rate&lt;br /&gt;
! Pumping duration&lt;br /&gt;
! EC&lt;br /&gt;
! Notes&lt;br /&gt;
|-&lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
| &lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
Where possible, the same pumping method should be used for repeated measurements so that results remain comparable.&lt;br /&gt;
&lt;br /&gt;
== Individual water-point pages ==&lt;br /&gt;
&lt;br /&gt;
Water points with sufficient information may receive dedicated subpages.&lt;br /&gt;
&lt;br /&gt;
Suggested structure:&lt;br /&gt;
&lt;br /&gt;
:&amp;#039;&amp;#039;&amp;#039;Regions:Chad/Guéra/Bitkine/Water_points/Restaurant_Complex&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
:&amp;#039;&amp;#039;&amp;#039;Regions:Chad/Guéra/Bitkine/Water_points/Djaborona_Church&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
:&amp;#039;&amp;#039;&amp;#039;Regions:Chad/Guéra/Bitkine/Water_points/Elie_Tchere&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
An individual page can contain:&lt;br /&gt;
&lt;br /&gt;
* precise coordinates;&lt;br /&gt;
* photographs;&lt;br /&gt;
* owner or operator;&lt;br /&gt;
* construction date;&lt;br /&gt;
* borehole depth;&lt;br /&gt;
* casing and screen information;&lt;br /&gt;
* pump type;&lt;br /&gt;
* measured yield;&lt;br /&gt;
* seasonal behaviour;&lt;br /&gt;
* EC measurements;&lt;br /&gt;
* laboratory chemistry;&lt;br /&gt;
* pumping-test results;&lt;br /&gt;
* current use;&lt;br /&gt;
* maintenance history;&lt;br /&gt;
* nearby water points;&lt;br /&gt;
* field notes.&lt;br /&gt;
&lt;br /&gt;
== Data quality ==&lt;br /&gt;
&lt;br /&gt;
Field information should retain its source.&lt;br /&gt;
&lt;br /&gt;
Values reported verbally by an owner should be marked as reported values until they are independently measured.&lt;br /&gt;
&lt;br /&gt;
Approximate coordinates should not be presented as survey-quality positions.&lt;br /&gt;
&lt;br /&gt;
Water described as potable should not be considered microbiologically safe without appropriate testing.&lt;br /&gt;
&lt;br /&gt;
== Related pages ==&lt;br /&gt;
&lt;br /&gt;
* [[Regions:Chad/Guéra/Bitkine|Bitkine]]&lt;br /&gt;
* [[Regions:Chad/Guéra/Bitkine/Groundwater_prospecting|Groundwater prospecting]]&lt;br /&gt;
* [[Regions:Chad/Guéra|Guéra]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Bitkine]]&lt;br /&gt;
[[Category:Water points]]&lt;br /&gt;
[[Category:Groundwater]]&lt;br /&gt;
[[Category:Water supply]]&lt;/div&gt;</summary>
		<author><name>Samuel</name></author>
	</entry>
</feed>