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1. GEOGRAPHIC LOCATION
The Municipality of Alaminos is located in the Western part of
the province of Pangasinan, along the shore of that historical Lingayen
Gulf (see Map No. 1). The map of the Philippines determined its
geographical location somewhere at coordinate 119°58’40.47”
Longitude East and 16°09’25.87” Latitude
North (Table 1). It is bounded on the North by the Lingayen Gulf;
on the South by the Municipality Mabini; on the East by the Municipality
of Sual and on the West by the Municipality of Bani. It is 45 kilometers
West Lingayen, the provincial capital and 123 kilometers from the
Regional center of San Fernando, La Union; 136 kilometers away from
Baguio City. It is 257 kilometers north of Manila and 200 kilometers
west of Olongapo city. It is necessible and could easily reach by
regular means of transportation.
2. LAND AREA
The municipality of Alaminos has a total land area of 16,623.39
hectares. It has 39 barangays and the area of each barangay is shown
in Table 2.
The only Urban barangay as per 1975 and 1980 NCSO survey is Poblacion
with an area of 265.300 hectares or 1.66 of the total land area
of the Municipality. However in later years due to the rapid growth
of population and various economic activities, six (6) barangays
such as Palamis, Tanaytay, Pocalpocal, San Vicente, Magsaysay and
Lucap were considered as Urban in the 1994-1998 planning period.
Since then these later barangays have existed as such. As a consequence,
the existing urban core/center now consists of contiguous built-up
areas of barangays Poblacion, Palamis and Tanaytay with a combined
area of 481.800 hectares and the rest except the other urban barangays
as mentioned above are rural barangays (32) with a total area of
2167.80.
It is shown in Table 3, that lands had been classified into alienable
and disposable, forestland and for fishpond development. Forestland
is categorized further into classified, national park and forest
reservations.
3. TOPOGRAPHY AND SLOPE
The topography of Alaminos characterized by flat plain. The plain
elevation is less than 20 meters from sea level and is surrounded
by 100-200 meters high limestone hills. The rounded hills in the
east are mostly covered with wild vegetation stretching northward
into the sea to form part of the Hundred Islands. The Alaminos River
and some minor streams fertilize the plains, which grow a variety
of agricultural crops.
4. CLIMATE/RAINFALL
Alaminos has both dry and rainy season. The dry season is from
December to April, while rainy season is from May to November. During
the rainy season, the average rainfall is 304 mm. Usually, the heaviest
rainfall occurs in August with often times reaching 1063.5 mm (Table
4).
Typhoon usually passes through Alaminos on their way out to the
China Sea. These often times cause floods and destroy agricultural
crops.
5. SOIL TYPE
There are 10 types of soil in the municipality (Table 5). Most
of the barangays of Alaminos have Alaminos Series and Pangasinan
Series type of soil, which also covers the towns of Labrador and
Sual. This type of soil covers the largest area in the Western part
of Pangasinan. This is characterized by reddish brown to granular
loam, which has a dept of about 44 cm. in the lower horizon.
The hillside and lowland areas have surface soil with iron concretions.
Gravel is always present in the upland areas and the sub-soil is
deep. Its substratum down to the present rock material varies in
depth from one to two meters from the surface. The principal crop
in this type of soil is lowland rice.
On the other hand, barangays Cayucay, Mona, Tawmtawin, Inerangan,
Landoc, Amangbangan, Sta. Maria, San Roque, Dulacac, Bisocol, Bolaney,
Maawi, Alos, Tangcarang, Magsaysay, and Amandiego have Bani clay
loam. This usually characterized by a very dark gray to muddy and
course granular clay. Its depth varies from 30-40 cm. when dry,
the surface soil cracks to a depth of more than 50cm. Lime precipitation
in various forms are present in lower subsoil. The substratum or
parent material, which contains a certain amount of lime concretion,
is just below this zone.
The barangay Pocal-Pocal, Sabangan and Hundred Island are composed
of Bolinao Clay Loam. The surface of this clay also varies 20-33
cm. and is characterized by loose pliable lime granular clay loam.
The color ranges from light reddish brown to chocolate brown and
to red. In some degraded areas the surface is hollow, and in most
cases, is badly eroded so that the subsoil is exposed.
In upland and hilly areas, the soil is then exposing the whitish-gray
tufacious parent material due to erosion. Lime, which is present
in some areas, is suitable for mining.
6. LAND CAPABILITY
The municipality has five (5) types of land capability namely (Table
6):
Class A – Alaminos Series and Pangasinan Series
– This kind of soil can be safely cultivated extensively
with ordinary farming practices, most widely adaptable to uses
and is formed easily as it nearly all level. Most of the barangays
of the Municipality of Alaminos have this type of soil that covers
the towns of Sual and Labrador this is good for rice production.
Class C – Barangays Cayucay, Mona, Tawintawin, Inerangan,
Landoc, Amangbangan, Sta. Maria, San Roque, Dulacac, Bisocol,
Bolaney, Maawi, Alos, Quibuar, Tangcarang, Magsaysay and Amandiego
are the Bani Series type. This is moderately good land that can
be use regularly for cultivated crop is good rotations but needs
intensive conservation treatment. The land is prone to erosion.
Class Y – The soil of barangays Pocalpocal, Sabangan
and Hundred Islands are of the Bolinao Clay Loam type. The land
is hilly and mountainous, barren, and rugged. It should be reserved
for recreation and wildlife or for reforestation.
Class X – The loil of barangays Pangapisan, Lucap,
Pandan, Telbang, Baleydaan, Polo, San Antonio, Cayucay, Mona,
Inerangan and Sabangan are of the hydrosol type of soil. It is
suited for fish production, oyster culture, and salted aquaculture,
moss and Nipa Palm production. This type of soil is wet most of
the time.
Class M – The soil of barangays Sabangan, Pandan
and Limansangan are of this type. These areas are good for grazing
forestry if well managed.
7. NATURAL AND MAN-MADE AREAS
Fortunately there are no man-made risks and the natural risks areas
are flood prone areas. (Map No. 2)
EROSION AND FLOOD PRONE AREAS
Due to the absence of good drainage and flood control system causing
overfloe of Cabatuan, Balangobong, Tococ, Tagoong River every time
ther is strong rain caused heavy damages to agricultural, animals
and piblic works such as roads, school buildings and other.
The flood prone areas are estimated at 4,025.5 hectares and are
in Cabatuan, Balangobong, San Vicente, amandiego, Pogo, San Jose,
Polo, Mona and Pangapisan. The erosion prone areas are along barangays
Cabatuan, Balangobong, San Jose and Pangapisan are estimated at
1,757.6 hectares.
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